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Stovax View 7 Inset High Output Boiler Inset Handleiding

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View 7 Inset
High Output Boiler Inset
Instructions for Use, Installation & Servicing
For use in GB & IE (Great Britain & Republic of Ireland).
PM675 Issue 5 (March 2018)
IMPORTANT
THE OUTER CASING, FRONT AND GLASS PANEL BECOME EXTREMELY HOT DURING
OPERATION AND WILL RESULT IN SERIOUS INJURY AND BURNS IF TOUCHED. IT
IS THEREFORE RECOMMENDED THAT A FIREGUARD COMPLYING WITH BS 8423:
(LATEST EDITION) IS USED IN THE PRESENCE OF YOUNG CHILDREN, THE ELDERLY
OR INFIRM.
Do not attempt to burn rubbish in this appliance.
Please read these Instructions carefully before installation or use.
Keep them in a safe place for future reference and when servicing the fire.
The commissioning sheet found on page 3 of these instructions should be completed by the Installer.
2
Covering the following models:
VW-7NHB
View 7 Inset- High Output Boiler Stoves
Contents
To receive your Extended Warranty your Stovax appliance must have
been purchased from our Expert Retailer Network and registered within
one month of purchase or installation. Please note that all warranties
are effective from the date of purchase. Any Stovax product purchased
outside of our Extended Retailer Network, or not registered within the
stated time will carry a standard 12 month warranty.
It is a condition of the Extended Warranty that the installation complies
with the relevant Building Regulations and is carried out by a suitably
trained and qualified individual (HETAS in the UK or equivalent in other
countries) with the certificate of installation and the Commissioning
Report on Page 3 completed and retained by the end user.
Full terms and conditions are detailed in the Warranty Statement on
the Stovax website www.stovax.com. In the event of any conflict of
information the wording on the website shall prevail.
Important Note: Should any problems be experienced with your
product, claims must first be submitted to the Expert Retailer where
the appliance was purchased from who will offer immediate assistance
or contact Stovax on your behalf.
Appliance Commissioning Checklist ......................3
User Instructions .......................................................4
Getting Started ...........................................................................4
User Instructions ........................................................................7
Care & Maintenance................................................................. 12
Troubleshooting ......................................................14
Installation Instructions ..........................................16
Installation Checklist ................................................................. 16
Pre-Installation Instructions ...................................................... 20
Installing the Appliance............................................................. 23
Commissioning ......................................................................... 29
Maintenance & Servicing ........................................31
Technical Appendix .................................................35
Spare Parts List ........................................................................39
Service Records ....................................................................... 40
3
Retailer appliance was purchased from:
Name:
Address:
Telephone number:
Essential information - MUST be completed:
Date Installed:
Model Description:
Serial Number:
Installation Engineer:
Company Name:
Address:
Telephone number:
Commissioning Checks - to be completed and signed:
Thermostat fitted YES NO
Is flue system correct for the appliance YES NO
Flue swept and soundness test complete YES NO
Smoke test completed on installed appliance YES NO
Spillage test completed YES NO
Use of appliance and operation of controls explained YES NO
Clearance to combustible materials checked YES NO
Instruction book handed to customer YES NO
Corrosion Inhibitor Added to Water System YES NO
Hot Water System Commissioned YES NO
CO Alarm Fitted YES NO
Signature: ............................................................................ Print Name: ..........................................................................
To assist us in any guarantee claim please complete the following information:-
Appliance Commissioning Checklist
4
Welcome
Congratulations on purchasing your View Inset Boiler, if
installed correctly Stovax hope it will give you many years of
warmth and pleasure for which it was designed.
The purpose of this manual is to familiarise you with your
appliance, and give guidelines for its installation, operation and
maintenance. If, after reading, you need further information,
please do not hesitate to contact your Stovax retailer.
1. General Points
1. General Points
1. General Points
IMPORTANT - DO NOT RUN THIS APPLIANCE
WITHOUT ANY WATER IN THE SYSTEM OR IF
IT IS SUSPECTED THE PIPES ARE FROZEN
ALWAYS REMOVE THE GLASS PLINTH AND GLASS
TOP (IF FITTED) BEFORE UNDERTAKING ANY WORK
ON THE APPLIANCE.
1.1 Before installation and/or use of this appliance please read
these instructions fully and carefully to ensure that you have
fully understood their requirements.
The appliance must be fitted by a registered installer*,
or approved by your local building control officer.
1.2 All local regulations, including those referring to national
and European Standards need to be complied with when
installing the appliance.
1.3 Only use for domestic heating. To achieve the optimum
performance from this appliance it must be installed and
operated according to these instructions burning the fuels
recommended.
1.4 You must burn only approved fuels. Do not use with liquid
fuels or as an incinerator.
1.5 Appliance surfaces become very hot when in use. Use
a suitable fireguard‡ if young children, elderly or infirm
persons are present.
Stovax offer firescreens, sparkguards and hearthgate
systems for protection. Your Stovax Retailer can advise you
about these products.
1.6 Donotplacephotographs,TV’s,paintings,porcelainor
other combustible items on the wall or near the appliance.
Exposure to hot temperatures will cause damage. Do not
place furniture or other items such as drying clothing closer
than 1m from the front of this appliance.
WARNING: Extra fuel should not be stored on or next to the
appliance. Only keep enough fuel for immediate use nearby
and never leave the appliance unattended for long periods
with any combustible material in close proximity.
1.7 Extractor fans or cooker hoods must not be placed in the
same room or space as this can cause appliance to emit
fumes into the room.
1.8 Do not obstruct inside or outside ventilation required for the
safe use of this appliance.
1.9 Do not make unauthorised changes to the appliance.
1.10 The chimney must be swept at least once a year.
See Section 13.
1.11 Do not connect, or share, the same flue or chimney system
with another appliance.
1.12 This appliance is designed to be used with the doors shut.
THERMOSTAT
This appliance is designed to be controlled by a
thermostat which regulates the rate fuel is burnt
and the amount of heat produced to hot water.
A trial and error approach will establish settings to
suit personal preference.
For Installation details refer to the instructions
(PM747) supplied with the thermostat kit.
The thermostat controls the Primary Air into the
appliance. The Primary Air Controls must be closed
in order for the thermostat to operate correctly and
efficiently.
The Primary Air Controls should only be used for
short periods during initial lighting if required.
SERIAL NUMBER
1.13 This number is required when ordering spare parts or making
warranty claims. It is found on the appliance data plate.
1.14 To access the data plate the base plinth must first be
removed. Open the door as wide as possible and lift the
plinth up to clear the 2 x fixing screws, see Diagram 1.
Lift plinth clear of 2 x screws
1
‡In the U.K. these products must conform to the
latest edition of BS 8423, Fireguards for use with
solid fuel appliances.
If appliance is operating unattended they must
conform to the latest edition of BS 3248
*Registered on the Competent Persons Scheme
(GB only see page 38/ INFO (Republic of Ireland).
Getting Started
5
1.15 The data plate is found on the swing out plate located on
the base of the appliance, see Diagram 2.
Data Plate
2
1.16 This appliance gives out its heat in two ways:
—Directly into the room in which it is fitted through
convection and radiation.
—Hot water to heat radiators and domestic hot water.
The output to hot water varies depending on how quickly
the fuel is being burnt. For more detail see the graphs on
page 18.
AIR CONTROLS
Several Stovax appliances have air systems providing
cleaner burning, and greater efficiency and control.
1) Airwash - air drawn over the window cleans the glass.
The source of Primary Combustion air when burning wood.
2) Primary Air - for use initially when establishing fires and
the main air supply when burning solid fuels.
Manually operate the following air controls using a
gloved hand and the tool provided.
3Airwash Control
CLOSE OPEN
Primary Control
CLOSE OPEN
Thermostatic
Control
OPENCLOSED
DOOR OPERATION
IMPORTANT: Stovax provide gauntlet style gloves
for the users protection from heat and any sharp
edges when using the appliance.
For your safety ensure that gloves are always
worn when opening, operating, refuelling or
handling internal metalwork.
Use a protected gloved hand and tool provided to operate.
DO NOT OPEN THE DOOR WITH BARE HANDS
DO NOT OPEN THE DOORS WHEN THE FIREBOX IS
FULL OF FLAMES - WAIT FOR THEM TO DIE DOWN.
4To Open and Close
Fit tool into side slot and lift to open
HEATING & HOT WATER SYSTEM CONTROLS
CONTROLS, GENERAL
1.17 As part of the installation of this appliance controls will have
been fitted to the heating and hot water system in order to
provide two functions:
—To control the comfort level in the house, see 1.18.
—To maintain safety in the event of misuse or mechanical
failure, see 1.20.
COMFORT CONTROLS
1.18 A programmable timer switches the pump on when heat is
required and off when it is not.
The timer, when combined with a room thermostat and / or
thermostatic radiator valves, enhances the comfort levels in
the house.
Some room thermostats combine the function with the timer
and can be programmed to reduce the room temperature
rather than turning the system off. This is effective in
not allowing rooms to become too cold and speeding up
recovery time.
1.19 The hot water cylinder can also be fitted with a thermostatic
valve which turns off the flow when the cylinder has reached
the desired temperature, but the heat leak radiator will have to
be bigger to cope with the extra load when the tank is isolated.
Getting Started
6
SAFETY CONTROLS
1.20 A high limit thermostat is fitted to the gravity flow pipe set at
80˚C.Thisthermostatshouldbeconnectedtothepumpso
thatthepumpisturnedonifthetemperatureexceeds80˚C.
This will prevent accidental boiling in the gravity circuit.
1.21 It is also recommended to fit a low limit thermostat on the
centralheatingreturnsetat45˚C.Thisthermostatwillturnthe
pumpoffifthereturntemperaturefallsbelow45˚C.Thiswill
prevent corrosion and condensation within the appliance.
NOTE – Further information on solid fuel central heating
systems can be found in the HETAS engineers training manual.
WARNING
Properly installed, operated and maintained, this
appliance will not emit fumes into the room.
Occasional fumes from de-ashing and refuelling
may occur.
Persistent fume emission is potentially
dangerous and must not be tolerated.
If fume emission does persist:
• Open doors and windows to ventilate the room.
• Leave the room.
• Allow fire to burn out and safely dispose of
fuel from the appliance.
• Check for chimney blockage and clean if
required.
• Do not attempt to relight until the cause of the
emission has been identified and corrected
• If necessary seek expert advice.
• All open flued appliances can be affected by
temporary atmospheric conditions which may
allow fumes to enter the house. Because of
this an electronic carbon monoxide detector
conforming to the latest edition of BSEN50292
must be fitted in the same room as the
appliance. The existence of an alarm must not
be considered a substitute for ensuring regular
servicing and maintenance of the appliance and
chimney system.
IF THE ALARM SOUNDS FOLLOW THE
INSTRUCTIONS GIVEN ABOVE.
Getting Started
2. Using the Appliance for the First Time
2.1 To allow the appliance to settle, and fixing glues and paint
to fully cure, operate the appliance at a low temperature for
first few days.
2.2 Do not touch the paint during the first period of use.
2.3 During this time the appliance may give off some unpleasant
odours. Keep the room well ventilated to avoid a build-up of
fumes.
2.4 Please be aware that, during use, rope seals may discolour.
This is normal.
CONDENSATION
CAUTION WHEN FILLING
2.5 When filling the boiler with water for the first time, the cold
water entering the water jacket can cause condensation to
form on the surfaces of the appliance (inside and outside).
2.6 In certain conditions this condensation could result in a
considerable amount of water, in some cases enough to fill
the bottom of the appliance. This could be even worse if the
house has recently been re-decorated, wet plastered or any
other work has been undertaken which could result in high
humidity.
2.7 Precautions must be taken to ensure that this build up of
condensate does not overflow from the appliance onto any
surrounding fabric of the room e.g. carpets.
NOTE - THIS CONDENSATION IS NORMAL DURING
FILLING AND DOES NOT INDICATE A FAULTY OR
LEAKING APPLIANCE.
NORMAL RUNNING
2.8 During normal running this condensation should be minimal
if the system is fitted with the low limit thermostat as detailed
in 1.21. This low limit thermostat prevents the system pump
from running until the appliance has reached temperature.
SEASONAL USE
2.9 If this appliance is unused for lengthy periods of time it
should be periodically checked to ensure that condensation
is not building up within the appliance.
NOTE – THIS CONDENSATION IS NORMAL AND DOES
NOT INDICATE A FAULTY OR LEAKING APPLIANCE.
If the appliance is going to be unused for very long periods
of time it is recommended to drain the system.
7
User Instructions
3. Recommended Fuels
3.1 Wood Logs:
Burn only seasoned timber with a moisture content of less
than 20%. To ensure this allow cut wood to dry for 12 to 18
months.
Wood Length
Appliance Wood Length
View 7 Inset Boiler 325mm
5
Poor quality timber:
— Causes low combustion efficiency
— Produces harmful condensation
— Reduces effectiveness of the Airwash and life of the
appliance
Do not burn construction timber, painted, impregnated
/ treated wood, manufactured board products or pallet
wood.
3.2 Solid fuel:
— Burn only anthracite or manufactured briquette
smokeless fuels listed as suitable for use with closed
heating appliances.
Do not burn bituminous coal, ‘petro-coke’ or other
petroleum based fuels as this will invalidate the product
guarantee.
3.3 Fuel consumption.
As tested at nominal heat output to the requirements of EN
13229: 2001 for intermittent operation:
Description
Fuel Consumption
Kg/hour
Wood
Kg/hour
Briquette
Smokeless fuel
View 7 Inset Boiler 3.6 1.8
3.4 For advice on suitable solid fuels contact your local
approved coal merchant*.
A number of factors can affect the performance of the
appliance. See Troubleshooting Section for details.
4. Lighting the Appliance
IMPORTANT: Stovax provide gauntlet style gloves
for the users protection from heat and any sharp
edges when using the appliance.
For your safety ensure that gloves are always
worn when opening, operating, refuelling or
handling internal metalwork.
4.1 Whether using wood or solid fuel the process for lighting the
appliance is the same.
4.2 For best results manually set air controls as shown in
Diagram 6.
6Airwash: Fully Open
Primary Air: Fully Open
4.3 Place firelighters, or paper, and dry kindling wood on the
grate or Woodburning tray.
A successful fire initially requires plenty of kindling to
establish a hot firebox and warm the chimney to aid flue
performance.
4.4 Light the paper or firelighters, see Diagram 7.
7
4.5 Leave the door slightly open as the fire establishes and
the glass warms to avoid build up of condensation.
*In the U.K:
• Ring the Solid Fuel Association advice line on
0845 601 4406 for details
• Visit their web site at www.solidfuel.co.uk
8
4.6 Add larger pieces of wood.
Do not use full sized logs at this stage, build up gradually in
size. Too many logs may smother the fire.
Do not load fuel above the log guard or the base of the
baffle, see Diagram 8.
Base of baffle
Log Guard
8
—Close the door.
Do not run with the door slightly open except for initial
lighting as this could cause over-firing and damage the
appliance.
Once the fire is established close the Primary Air Controls
and set the thermostat to the desired temperature.
5. Running the Appliance
5.1 Only for use with recommended fuels, see Section 3 for
full details.
— Burning Soild Fuels, see 5.2.
— Burning Wood on a Multi-fuel Grate or when a
Woodburning tray is fitted, see 5.14.
Wood can be burned on the multi-fuel grate, but if wood is
to be used constantly a Woodburning tray should be fitted,
see Section 6.
Burning Soild Fuels
To burn smokeless fuels the cast iron multi-fuel kit supplied
with the product must be fitted.
5.2 Allow the fire to become established before adding the solid
fuel, see Section 4.
5.3 Open the Primary Air Control fully to establish a glowing
bed before adding new fuel.
5.4 De-ash the grate before re-fuelling (see User Instructions,
Section 8).
5.5 Add the correct amount of fuel, see Section 3.
5.6 Close the doors immediately after refuelling.
Burn new fuel at a high temperature for a few minutes before
adjusting the Primary Air Control to the desired setting.
User Instructions
Refuel little and often for clean, efficient burning.
Manually operate the following air controls using a
gloved hand or the tool provided.
9Airwash: Closed
Primary Air: Closed
Thermostatic
Control: Adjust
5.7 Close the Primary and Airwash Controls.
5.8 Control the temperature and hot water output using the
Thermostatic Control.
THERMOSTAT
This appliance is designed to be controlled by the
thermostat which regulates the rate fuel is burnt
and the amount of heat produced to hot water.
A trial and error approach will establish settings to
suit personal preference.
5.9 The thermostat operates by controlling combustion air
entering the boiler. The higher the thermostat setting the
hotter the temperature of the water leaving the boiler. The
lower the setting the lower the temperature of the water
leaving the boiler.
NOTE IF THE THERMOSTAT IS SET TO
MAXIMUM THE WATER LEAVING THE BOILER
WILL BE APPROXIMATELY 85˚C.
Setting Indicator
-
+
10
Control Knob
9
User Instructions
5.10 The exact setting of the thermostat and the manual Air
Controls may need slight adjustment by trial and error to suit
requirements.
Operate the follow controls manually:
Primary Air Control
When burning solid fuel more Primary Air will increase the
heat output and burn the fuel more quickly.
Do not burn large amounts of fuel with the Primary Air
Control on a low combustion setting for long periods of
time. This causes tars and creosotes to build-up in the
appliance and flue system.
Airwash Control
A small amount of Airwash can sometimes help to keep the
glass clean but will reduce efficiency.
Experience establishes settings to suit personal preference.
Over-firing
When in use, burning the appliance at a high temperature
for a short period reduces tars and creosotes.
DO NOT OPERATE THE APPLIANCE WITH THE PRIMARY
AIR CONTROL OPEN FOR LONG PERIODS OF TIME AS
THIS COULD CAUSE OVER-FIRING AND MAY CAUSE
PERMANENT DAMAGE.
5.11 Only anthracite or smokeless fuels suitable for use in
closed appliances must be burnt in this appliance.
5.12 Do not burn bituminous coal, ‘petro-coke’ or other
petroleum based fuels as this invalidates the product
guarantee.
5.13 Do not load fuel above the log guard and the Secondary
Air Inlets at the back of the firebox, see Diagram 8.
Wood Burning
5.14 This section applies to burning wood on a Multi-fuel grate or
when a Woodburning tray is fitted.
Wood can be burnt on the multi-fuel grate, but if wood is to
be used constantly a Woodburning tray should be fitted, see
Section 6.
DO NOT BURN SOLID FUEL ON A WOODBURNING
TRAY AS THIS MAY CAUSE PERMANENT DAMAGE.
When fitted with a Multi-fuel grate only:
Do not de-ash the grate completely.
All Models:
Wood burns best on a bed of ash (approx. 25mm (1") deep).
5.15 Rake the embers evenly over the firebed and open the
Airwash Control fully for a few minutes before re-fuelling.
5.16 Do not refuel when a large amount of flames are present
in the firebox as this could cause smoke or flames to
spill into the room.
5.17 Add the correct amount of fuel, see Section 3.
5.18 Close the doors immediately after refuelling.
5.19 Burn new logs at a high temperature for a few minutes before
adjusting the Airwash Control. Refuel little and often for clean,
efficient burning. More Airwash will increase the heat output,
burn fuel more quickly and will help keep the glass clean.
Manually operate the following air controls using a
gloved hand or the tool provided.
11 Airwash: 30%
Primary Air: Closed
Thermostatic
Control: Adjust
5.20 Close the Primary Air Controls and adjust the Airwash
Control to approximately 30% open.
5.21 Control the temperature and hot water output using the
Thermostatic Control.
THERMOSTAT
This appliance is designed to be controlled by the
thermostat which regulates the rate fuel is burnt
and the amount of heat produced to hot water.
A trial and error approach will establish settings to
suit personal preference.
5.22 The thermostat operates by controlling combustion air
entering the boiler. The higher the thermostat setting the
hotter the temperature of the water leaving the boiler. The
lower the setting the lower the temperature of the water
leaving the boiler.
10
NOTE IF THE THERMOSTAT IS SET TO
MAXIMUM THE WATER LEAVING THE BOILER
WILL BE APPROXIMATELY 85˚C.
Setting Indicator
-
+
12
Control Knob
5.23 The exact setting of the thermostat and the Manual Air
Controls may need slight adjustment by trial and error to suit
requirements.
Operate the follow controls manually:
Primary Air Control
Small amounts of Primary Air can sometimes help to
maintain a hot fuel bed and boost hot water output.
Airwash Control
Opening the Airwash Control will increase the visual flame.
Do not burn large amounts of fuel with the Airwash
Control closed for long periods of time. This reduces the
glass cleaning effect of the Airwash and causes tars and
creosotes to build-up in the appliance and flue system.
5.24 Experience establishes settings to suit personal preference.
Over-firing
5.25 When in use, burning the appliance at a high temperature
for a short period reduces tars and creosotes.
DO NOT OPERATE THE APPLIANCE WITH THE PRIMARY
AIR CONTROL OPEN FOR LONG PERIODS OF TIME AS
THIS COULD CAUSE OVER-FIRING AND MAY CAUSE
PERMANENT DAMAGE.
Shut Down
5.26 If there is still burning fuel in the firebox, Stovax do not
recommend shutting down the air controls completely
unless there is a chimney fire in progress (see section 10
for advice). Closing the controls during the burning process
will cause poor combustion and could lead to a build up of
gasses that could ignite dangerously.
5.27 Always have enough air entering the appliance to maintain
some flame within the firebox.
5.28 If it is necessary to shut down the appliance then run on a
high setting until all of the fuel has been burnt before closing
the air controls.
User Instructions
6. Woodburning Tray
In order to burn wood continuously in a Multi-fuel appliance
a Woodburning Tray must be fitted.
For details on purchasing a Woodburning Kit for this
appliance contact your retailer.
Front edge
13
6.1 Remove the riddling mechanism from the appliance
(see Pre-Installation, Section 6).
To fit the Wood Burning Tray:
6.2 Remove the log guard and ashpan.
6.3 Hold the tray flat with the front edge pointing forwards, tilt
diagonally and insert through the front of the appliance,
see Diagram 14.
14
6.4 Place tray flat on the fixings on the firebed,
see Diagram 15.
15
11
User Instructions
6.5 Fit the plug supplied into the hole where the riddling
mechanism is normally located and secure with bolt and
clamp (also supplied), see Diagram 16.
Plug
Clamp
Bolt
16
6.6 Replace the log guard and the ashpan.
7. Extended Burning
7.1 It is possible to get the appliance to burn for extended
periods of time. In order to do this:
—De-ashpriortonalrefuelling.
— Burn new fuel at a high temperature for a few minutes
before adjusting the Primary Air Control.
— Set air controls to low combustion settings.
This will gradually blacken the glass but it will clear when
operated at a high temperature for a short period.
8. Ash Removal
Do not allow ash to build up as it may cause damage
and adversely effect the performance of the appliance.
Warning: Ash can remain hot long after appliance has
been in use.
8.1 Burning Wood with a Woodburning tray.
— Open the Door.
— Leave a layer of ash to start the new fire on. Wood burns
best on a bed of ash (approx. 25mm (1") deep).
— Remove excess ash from the Woodburning tray with a
small shovel and place into a Stovax Ash Caddy (Stovax
Part No. 4227) or other suitable container.
— Rake the remaining ash evenly over the firebed.
Warning: Ash can remain hot long after appliance has
been in use.
— Using gloves, carefully remove ashpan using tool
supplied, see Diagram 16. Ensure the tool is fully
engaged before operation. Practise this technique before
hand with a cold ashpan.
— Place the ash into a Stovax Ash Caddy (Stovax Part No.
4227) or other suitable container.
Do not place hot ash in any container made from plastic
or any other combustible material.
— De-ash at least once a week.
8.2 All fuels (when fitted with a Multi-fuel grate):
Burning Solid Fuels:
— De-ash the appliance before filling with new fuel. Do not
allow ash to build up on the underside of the grate as
this can cause premature failure.
Burning Wood:
— Leave a layer of ash on top of the riddling bars to start
the new fire on. Wood burns best on a bed of ash
(approx. 25mm (1") deep).
All Fuels:
— Insert the Riddling Tool into the socket, see Diagram 17.
17
— Rotate the Riddling Tool backward and forward 3 or 4
times to remove the ash. Do not force the handle beyond
its natural stop point. The ash will fall into the ashpan.
8.3 Open the door.
Warning: Ash can remain hot long after appliance has
been in use.
Using gloves, carefully remove ashpan using tool supplied,
see Diagram 18. Ensure the tool is fully engaged before
operation. Practise this technique before hand with a cold
ashpan.
18
12
8.4 Place the ash into a Stovax Ash Caddy (Stovax Part No.
4227) or other suitable container.
8.5 Check and remove ash as often as required when burning
solid fuel.
8.6 De- ash at least once a week.
8.7 Do not place hot ash in a container made from plastic or any
other combustible material.
9. Over-Firing
9.1 Do not over-fill with fuel or run at high temperatures for long
periods or over-firing can occur.
DO NOT OPERATE THE APPLIANCE WITH THE
PRIMARY AIR CONTROL OPEN FOR LONG PERIODS
OF TIME AS THIS COULD CAUSE OVER-FIRING AND
MAY CAUSE PERMANENT DAMAGE.
9.2 Over-firing can cause permanent damage to the
appliance and invalid the product warranty.
10. Chimney Fire
10.1 If a chimney fire occurs:
— Shut all air controls immediately.
— Evacuate the building.
— Call the fire brigade.
— Do not re-enter the building until it is confirmed safe.
10.2 Do not use the appliance after a chimney fire until:
a) It has been inspected by a registered installer*,
confirming the appliance is safe to use.
b) The chimney system has been inspected and swept by a
chimney sweep, confirming the system is structurally sound
and free from obstruction*.
c) It is repaired as required before re-use. Use only
genuine Stovax replacement parts to keep your appliance in
safe, efficient working order.
11. General Cleaning
11.1 Clean and inspect the appliance regularly, especially in
periods of heavy use. Regular cleaning and maintenance
will help give many years of safe use.
11.2 Allow appliance to cool thoroughly to avoid risk of
burns.
11.3 Clean regularly, according to level of use.
Remove the ash completely.
(See User Instructions, Section 8).
10.4 Check the internal components for damage and for obvious
build up of soot, ash or debris above the flue baffle(s) (these
can be found in the upper part of the firebox). Use a torch if
necessary.
11.5 If there are any signs of a build up of debris above the flue
baffle(s) either:
— Arrange for the chimney to be swept (see Care &
Maintenance Instructions, Section 13).
— Remove the baffles and clear the debris
(see Pre-Installation Instructions, Section 5).
11.6 Clean matt black appliances using Stovax Colloidal black or
Stovax Grate Polish.
11.7 To refresh painted finishes a touch up spray is available.
Contact your Stovax retailer quoting the serial number found
on the appliance date badge.
Do not use aerosol sprays near an operating appliance.
Do not use abrasive cleaner or cleaning pads.
Check that the door shuts properly and creates an effective
seal. Leaking door seals prevent the appliance working
properly.
12. Cleaning Glass
12.1 Keep the glass clean with correct use of the Airwash system
and good quality fuel. Use the boost setting to clear any
build up.
12.2 Sometimes additional cleaning may be required.
Before undertaking this operation allow appliance to cool
fully. Do not clean hot glass.
12.3 On appliances with printed glass do not use cleaning
agents that have a high alkaline or acidic content, for
example Stovax Gel Cleaner, these are aggressive
cleaning agents designed to be used with heavily
stained clear glass. On printed glass surfaces, use
Stovax Glass Cleaner (Stovax No.4103) which is better
formulated for this application.
12.4 Before applying a cleaning agent remove any dust and
loose soot with a damp cloth.
12.5 Use an appropriate glass cleaner. Apply the cleaning fluid to
a cloth before rubbing onto the glass.
Apply carefully and do not apply excessively. Try to prevent
any run off which could soak into the rope seals around the
edge of the glass.
Soot can also contain acidic particles that can cause
corrosive damage to printed glass.
12.6 Remove dirt with a moist cloth and buff dry.
12.7 Some types of wood and solid fuel can cause a white
residue to form on the glass.
If this occurs it should be cleaned off at least once a
week during periods of heavy usage.
If the liquid cleaning agents recommended do not
remove this residue use a dry cleaning pad which will
help remove these white marks.
12.8 Before relighting the appliance ensure the glass is fully dried.
If the rope seal has absorbed excess cleaning agent it
is advisable to replace the rope as soon as possible to
preserve the printed finish of the glass.
Care & Maintenance
*Registered on the Competent Persons Scheme (GB
only) see page 38/ INFO (Republic of Ireland).
13
Care & Maintenance
13. Chimney Sweeping
13.1 To maintain safe and efficient use of the appliance, the
chimney/flue must be inspected and swept at least once a
year by a qualified chimney sweep*.
If the appliance is used continuously throughout the year,
or it is used to burn wood, more frequent sweeping is
recommended.
The best time to have the chimney swept is at the start of
the heating season.
13.2 The chimney, any connecting flue pipe and the appliance
flue ways, if incorporated, must be regularly cleaned.
13.3 Ensure adequate access for cleaning where it is not
possible to sweep through the chimney.
13.4 If the chimney is believed to have previously served an open
fire it must be swept a second time within a month of regular
use after installation.
14. Care Of Stove
Stovax has a range of cleaning and maintenance products
and accessories to keep your appliance in good working
order. Your Stovax retailer can advise you on suitable items
for your appliance and provide genuine spare parts such
asreplacementglass,doorsealingropeandrebricks.
View the extensive range at www.stovax.com by clicking on
Accessories. In addition, an annual service by a competent
engineer is recommended to keep your appliance in the best
possible condition.
15. Seasonal Use
15.1 Clean and service the appliance if not used during the
warmer months, as detailed in the Maintenance and
Servicing section.
15.2 Set the air controls to 50% to keep the appliance ventilated
and stop the build-up of any moisture inside.
15.3 Before re-lighting the appliance:
—Remove the baffles.
—Clear any debris that may have accumulated.
—Check the flue is clear of any blockages.
15.4 If this appliance is unused for lengthy periods of time it
should be periodically checked to ensure that condensation
is not building up within the appliance.
NOTE – THIS CONDENSATION IS NORMAL AND DOES
NOT INDICATE A FAULTY OR LEAKING APPLIANCE.
15.5 If the appliance is going to be unused for very long periods
of time it is recommended to drain the system.
16. Optional Extras
Woodburning Tray
16.1 In order to burn wood continuously in this appliance you
will need to purchase a Woodburning Tray.
For more details on the Woodburning Kit for this appliance
contact your retailer.
17. Radiator Troubleshooting
17.1 All or some of the radiators do not get hot
Burning wood Wood is burning too
slowly
Open up the airwash to
make a hotter fire
If fitted set the thermostat
to a higher setting
Burn dryer wood
Burn better quality wood
Reduce ashbed to 1" thick
Burning Solid
Mineral fuels
Fuel is burning too
slowly
Open up the primary air to
make a hotter fire. If fitted,
set the thermostat to a
higher setting
The fire needs riddling to
remove ash. De-ash the fire
Empty the ash pan.
All Fuels
Appliance is not
producing much
heat.
Not enough fuel.
System faults
Bleed the radiators to
ensure there are no air
locks.
Incorrect system design
seek professional
assistance
Too many radiators in the
system exceeding the
appliances capabilities.
17.2 In the unlikely event of a problem that cannot be
solved by these tips contact your installer or retailer
for help.
14
Troubleshooting
Symptom Cause Solution
OPERATION
Difficulty starting the fire and
keeping it burning well
Low flue draught Consult your installer
Wet wood (over 20% moisture) Use dry seasoned wood (less than
20% moisture content)
Poor burning control High flue draught Consult your installer
Short burn times
Wet wood (over 20% moisture) Use dry seasoned wood (less than
20% moisture content)
Insufficient Fuel Consult table in section 3
Excessive heat output (Over firing)
High flue draught Consult your installer
Air control left fully open Close air control to reduce output
Low heat output to room
Low flue draught Consult your installer for advice
on suitable flue system
Wet wood (over 20% moisture) Use dry seasoned wood (less than
20% moisture content)
Low heat output to water
Insufficient fuel See User Instructions Section 3
Air controls set incorrectly See User Instructions Section 5
Heating System fault Consult your installer
Excessive fuel consumption
High flue draught Consult your installer for advice
on suitable flue system
Over dry wood Do not use constructional timber
or pallet wood
SMOKE EMISSIONS
Smoke and small flames Wet wood (over 20% moisture) Use dry seasoned wood (less than
20% moisture content)
Intermittent smoke spillage into room
when appliance door is opened
Low flue draught Consult your installer for advice
on suitable flue system
Incorrect additional ventilation
air in to building Consult your installer
Continuous smoke spillage into
room when appliance in use Blocked flue
Open all doors and windows to ventilate
the room. Allow the fire to burn out.
Check flue for blockage. Do not re-use
until cause of spillage is identified.
Consult your installer for advice
Blue/grey smoke from chimney Wet wood (over 20% moisture) Use dry seasoned wood (less than 20%
moisture content)
ADVERSE WEATHER
Windy days, intermittent smoke
spillage into room when appliance
door is opened
Down draught in flue caused by
air turbulence caused by nearby buildings
or trees
Weather conditions combined with the
flue terminal position can have an effect
on the appliance performance.
Consult your installer
Calm days, intermittent smoke
spillage into room when appliance
door is opened
Over size flue giving poor
flue draught
Weather conditions combined with the
flue terminal position can have an effect
on the appliance performance.
Consult your installer
Damp/Rainy days lighting
and burning problems
Flue temperature low / rain
water inside flue
Use good quality wood to start
and maintain the fire, consult your
installer to fit a rain cowl
Wind noise from the air control High flue draught Consult your installer for advice
on suitable flue system
Troubleshooting
15
Troubleshooting
Symptom Cause Solution
THE APPLIANCE
Rapid creosote build-up in the chimney Wet wood (over 20% moisture)
Use dry seasoned wood (less than 20%
moisture content). Operate at a high
temperature for short periods each time the
appliance is used to avoid large build-ups of
tars and creosotes
Tar coming from flue joints
Appliance operated at continuous low
temperatures
Operate at a high temperature for short
periods each time the appliance is used to
avoid large build-ups of tars and creosotes.
See user instructions for correct use of air
control
Using poor quality wood Use dry seasoned wood (less than 20%
moisture content)
Strong pungent smell after the appliance is lit
Appliance operated at continuous low
output
Operate at high output for short periods. See
user instructions for correct use of air control
Using poor quality wood Use dry seasoned wood (less than 20%
moisture content)
Wind noise from the air control High flue draught Consult your installer for advice on suitable
flue system
Dirty glass Wet wood (over 20% moisture) Use dry seasoned wood (less than 20%
moisture content)
Glass blackening
Using poor quality wood Use dry seasoned wood (less than 20%
moisture content)
Low flue draught Consult your installer for advice on suitable
flue system
Incorrect use of air control See user instructions for correct use of air
control
Appliance operated at continuous low
temperatures
Operate at high output for short periods. See
user instructions for correct use of air control
FLUES
The flue system has two main functions:
- To safely remove the smoke, fumes and combustion gases from the building.
- To provide a sufficient amount of flue draught (suction) in the appliance to ensure the fire keeps burning.
The flue draught is caused by rising hot gases when the appliance is lit.
Tar and creosote are a major cause of chimney fires. If the appliance experiences problems with tar build up consult a chimney
sweep before continued use of the appliance.
For advise on the correction of persistent flue problems consult a qualified heating engineer before continuing to use the
appliance.
16
Installation Checklist
Please Note
This section is intended to give an overview of the product performance and essential information required for installing the appliance.
It is intended for qualified engineers who are already familiar with Stovax products.
For full details and expanded information please see the Technical Appendix at the back of this manual.
In the U.K. Additional information covering the
installation of the appliance may be found in the
following British Standards: BS EN 15287,
BS6999, BS8303.
1. View Dimensions
All dimensions are in mm (25.4mm = 1")
Description A B C D E F G H J øK L M N P Q R* S* T
View 7 Inset Boiler 489 574 487 45 460 45 143 400 128 220 143 550 187 343 290 234 328 10
* Glass View
10mm*
*including 6mm feet on underside
Glass top plate
T
2
1Boiler tappings x 4
1" BSP
17
Installation Checklist
2. Essential Information
GENERAL
Model:
View 7 Inset Boiler - VW-7NHB
View 7 Inset
Boiler
Nominal Heat Output to Room Wood kW 4.0
Solid Fuel kW 4.0
Nominal Heat Output to Water Wood kW 7.0
Solid Fuel kW 7.0
Efficiency Wood % 74
Solid Fuel % 77
CO @ 13% O2Wood % 0.40
Solid Fuel % 0.77
Weight Kg 137
Recommended Fuels Wood Seasoned Wood (less than 20% moisture content)
Solid Fuel Briquette smokeless fuel suitable for closed appliances
(Ancit-Phuracite-Taybrite-Homefire Ovals)
As tested to the requirements of EN 13229 for intermittent operation
Flue/Chimney Size
Without flue liner Round (Diameter) mm 153
inch 6
Without flue liner system (Square) mm 135
inch 51/2
FLUES
With Liner of Factory made system (diameter)
installed in accordance with manufacturers
instructions
mm 153
inch 6
Flue/Chimney
minimum height**
All products
**must be 4.5m from the hearth to the top of the
flue, with no horizontal sections and a maximum of
4 bends. Bends must have angles of less than 45
degrees from the vertical.
m 4.5
feet 15
Flue Draught
Min
mm Wg
1.0
Nominal 1.25
Max 2.0
Flue Gas Mass Flow Wood g/s 8.1
Solid Fuel g/s 7.2
Flue Gas Temperature at Spigot/Socket Wood oC 386
Solid Fuel oC 386
Flue Outlet Size
(Top only) All mm 128
inch 5
European Min Spec for Chimney Flue - T400 N2 D 3 G50
VENTILATION
A) Traditionally Built Homes
• Where leakage is greater than 5m3/hour/m2.
• Ventilation normally required = 550mm2 per kW output over 5kW
B) Modern Construction Homes
• Where leakage is less than 5m3/hour/m2.
• Ventilation normally required = 550mm2 per kW
AAdditional Ventilation
mm2 3300
cm2 33
in2 5.3
BAdditional Ventilation
mm2 6050
cm2 60.5
in2 9.8
For full technical details on ventilation see Technical Appendix on Page 35
18
Installation Checklist
5. Minimum Builders Opening
To make installation easier make the opening slightly larger than
the minimum requirements where possible.
*see note
5
AFront
B
C
View 7
A 410mm
B 560mm
C 355mm
6. Fire Surround Clearances
If the appliance is to be fitted with a fire surround, use the
minimum clearances, see Diagram, between any point of
the appliance and any combustible material. Stovax produce
a selection of surrounds and details can be obtained from
your local supplier.
150
mm
300mm
150
mm
6
6.1 We recommend you obtain expert advice before proceeding
with work of this nature.
6.2 Some finishes may discolour with heat and some lower
quality products may distort, or crack, when in use.
3. Boiler Output Charts
3
4. Minimum Dimensions - Hearth
150
150
225
500
789
Superimposed Hearth
(or area to be free of combustible
material)
Constructional
Hearth
4
4.1 The appliance must stand on a non-combustible
constructional hearth which is at least 125mm thick with the
minimum dimensions as shown in diagram.
4.2 If this appliance is installed in an elevated setting it is
recommended to increase the 225mm hearth depth to safely
contain any falling logs or embers. The higher the appliance
is installed the deeper the hearth should be to avoid
scorched floor coverings.
19
Installation Checklist
If stone / granite / marble or any other natural material
is used to construct the fire surround, or any part of it,
provision should be made for expansion and movement
of the parts due to heating and cooling.
If you are in any doubt about the installation
requirements, or suitability of fire surrounds contact
your Stovax Retailer.
6.3 All fire surrounds should be suitable for use with solid fuel
heating products.
7. Optional Extras
Woodburning Tray
7.1 In order to burn wood continuously in this appliance you
will need to purchase a Wood Burning Tray.
For more details on the Wood Burning Kit for this appliance
contact your retailer.
20
Pre-Installation Instructions
1. General
1.1 To make the installation of the appliance easier it is best
to remove the internal components before fitting into the
builders opening/studwork.
Packing List
• User and Installation instructions
• Warranty Card
• Pair Leather Gloves
• Door handle tool
• Ashpan
• Ashpan tool
• Riddling tool
• Thermostat
Standard Features
• Primary Air (Under grate air for full multi-fuel use)
• Airwash (for woodburning/clean glass)
• Riddling Grate System for clean de-ashing (when fitted
with a multi-fuel kit)
• Removable door handle tool
• Top flue exit only
• Steel flat top and optional glass top plate
1.2 For the best results removing the following components as
set out below.
2. Removal of the Steel or Glass Top
2.1 Remove the Steel top or Glass top and place carefully to
one side, see Installation Section 2.
3. Removal of the Door
3.1 To remove the door first remove the glass top plate (if fitted)
and the steel flat top (see Installation, Section 2).
3.2 Remove the door by opening and lifting the door free of the
hinge blocks.
3.3 Lay the door face down on a soft flat surface to protect the
paintwork and glass.
4. Removal of the Log Guard
4.1 To remove the log guard:
—Lift log guard clear of the supporting brackets.
—Rotate to clear the sides of the door opening.
When refitting the log guard ensure it is positioned
correctly with the casting stamps facing the back of the
appliance or it may damage the glass on shutting the
door.
Do not use appliance without the log guard in position.
5. Removal of the Baffles
No tools are required. Always wear gloves when handling
internal components.
5.1 To maintain efficient combustion the appliance is fitted with a
baffle system that allows for secondary combustion,
see Diagram 1.
Allow the appliance to cool fully before removing
internal parts.
Front edge
Front edge
1
5.2 Remove the log guard from the appliance to give access to
the firebox, see Section 4.
5.3 Use both hands to lift the baffle vertically and slide it to one
side, see Diagram 2.
2
5.4 In one movement lower the other side of the baffle and
move it sideways to clear its supports on both sides of the
appliance. Pull the baffle toward you and out through the
door opening.
21
Pre-Installation Instructions
5.5 To replace the baffle repeat the above steps in reverse,
ensuring the baffle fits over the supports on the sides of the
interior, see Diagram 3.
Rear
support
Front
support
Baffle In Place
Ensure baffle sits on
front supports
3
5.6 Remove and clean baffle system to ensure the flue ways are
clear of soot and debris and to ensure the safe and efficient
operation of the appliance. The frequency of cleaning will
depend on the appliance operating conditions.
5.7 The baffle system is designed to give safe and efficient
operation of the appliance. Replace damaged baffles
immediately.
Do not modify the baffle.
6. Removal of the Riddling Mechanism
The riddling mechanism can be removed for cleaning to
maintain good working condition.
To remove the riddling mechanism:
6.1 Remove the log guard to enable access, see Section 4.
6.2 Remove the baffle, see Section 5.
6.3 Remove the ashpan.
6.4 Remove the riddling bars, noting the order in which they sit,
see Diagram 4.
Lift bars to
remove
4
6.5 Remove Rear Bar, see Diagram 5.
5
To remove the Riddling Boss:
6.6 Use the 5mm hex key as shown in Diagram 6.
5mm Hex
Key
Riddling
Boss
Fixing
Screw
6
6.7 Unscrew the boss.
22
6.8 To remove the riddling cam bar first rotate it until clear of
its hooks. Now lift the rear edge of the multi-fuel frame and
manoeuvre the bar until free, see Diagram 7.
7
6.9 Lift the multi-fuel frame and rotate to remove from the
firebox.
8
6.10 Replace the internal components in reverse order.
PLEASE NOTE: It is helpful to align the riddling cam bar
with the riddling boss BEFORE replacing the multi-fuel
frame. Once the riddling cam bar has been fully repositioned
ensure that the teeth are facing upwards before attempting
to replace the riddling bars.
Once the riddling bars have been replaced check the
riddling mechanism moves freely before loading the
appliance with fuel.
Pre-Installation Instructions
23
Installation Instructions
1. Installing the Appliance
WARNING - ALWAYS REMOVE THE GLASS PLINTH AND
GLASS TOP (IF FITTED) BEFORE UNDERTAKING ANY WORK
ON THE APPLIANCE.
Each installation is unique to the property so it is not possible
to give details to suit every setting. The installation must comply
with Building Regulations† and be made using "best practice"
construction methods‡.
Many fireplace openings have a supporting lintel. Do not remove
without supporting the remaining structure of the building. Do not
support the structure or the flue system with the appliance.
The flue system must be fully installed and supported according to
the manufacturers instructions BEFORE the appliance is installed.
1.1 Take care when installing the appliance. Careless handling
and use of tools can damage the finish and/or area.
This appliance is designed to be controlled by a
thermostat which regulates the rate fuel is burnt
and the amount of heat produced to hot water.
Note: It is recommended that the thermostat is fitted
before the appliance is installed. For installation
details refer to the instructions (PM747) supplied
with the thermostat kit.
1.2 Remove the door and all internal components before
proceeding (see Pre-Installaion, Sections 2 - 6).
Manoeuvring the appliance into the builders opening
will require 2 people.
1.3 Slide the appliance into the opening taking care not to
damage the hearth.
1.4 Check that the fit is suitable and the appliance is in the
correct position.
1.5 If the appliance is to be fixed to the hearth this must be
done before connecting the flue.
Hearth Fixing
It is recommended that this appliance is fixed to the hearth.
This must be done before connecting the flue.
1.6 There are 2 x keyhole slots in the base of the appliance
which can be used to attach it to the hearth, see Diagram 1.
This may damage some hearths, such as marble, granite
and limestone, which will be visible if the appliance is ever
removed. See below for an alternative fixing option.
1
1.7 Remove the base plinth.
1.8 Position the appliance where required on the hearth and
mark the location of the keyholes.
1.9 Drill the required size holes into the hearth.
1.10 Use suitable fasteners to fix the appliance in place.
Alternative Option:
If it is not desirable to create holes in a decorative hearth
the appliance can be fixed to the constructional hearth from
within the firebox.
1.11 Mark 2 x drill holes to the dimensions shown in Diagram 2.
100mm
200mm
2 x 8mm ø
2
1.12 Drill 2 x countersunk 8mm holes as marked. Please note:
the holes must be drilled all the way through the base to the
hearth and the countersunk recess must be deep enough to
ensure the screws will sit flush with the base of the firebox.
1.13 Carefully remove the appliance from the opening.
1.14 Using a masonry bit, drill corresponding holes in the hearth
and fit 2 x 6mm wall plugs.
1.15 Slide the appliance back into the opening taking care not to
damage the hearth.
1.16 Secure the appliance to the hearth using 2 x 6mm x 100mm
(minimum) countersunk screws. Do this before connecting
the flue.
† England and Wales – Document J / Scotland -
Part F/Document J (Republic of Ireland only)
‡ the latest edition of BS 8303, BS EN 15287,
BS 7566
24
Installation Instructions
Connecting the Flue
The flue must be installed in accordance with the
manufacturers instructions.
1.17 Fill the void at the back of the box with 6:1 vermiculite/cement
mix or any other good non-combustible insulation material. It
is important to insulate the back, top and side of the box.
CHECK THE BOILER CONNECTIONS FOR
ANY SIGN OF LEAKS BEFORE ANY INFILLING
REQUIRED IN THE INSTALLATION.
1.18 Insert the flue spigot from inside the appliance.
1.19 Connect the flue liner to the flue collar using the flue liner
adaptor.
1.20 Seal liner and adaptor with fire cement.
1.21 If the appliance is installed on an unlined, masonry flue:
— Fit a non-combustible closure plate to locate the first section
of single wall flue pipe from the appliance to the old system.
— Make the connection as with a flue liner system.
1.22 Do not connect the system into large voids that could
exist in older chimney systems. If this is the case consider
using a flue lining system to improve the operation of the
appliance, see Diagram 3.
3
Closure Plate
Ridged Flue
Pipe
Flue Liner
Adaptor
Supplied By
Flue Liner
Manufacturer
2. Steel Top & Optional Glass Top
The appliance is supplied with a flat steel top.
2.1 Place the top on the appliance ensuring it is central and
flush with the sides of the appliance. The front of the top
should line up with the door. The top also has 3 x threaded
bosses on the underside, see Diagram 4. Ensure the 2 x
front bosses line up with the holes in the carcass top.
4
2.2 With the door open, fix the steel top in position from the
underside using the 2 x M8 x 20 hex head screws and 2 x
M8 crinkle washers.
Washer
Screw
5
2.3 This appliance can also be fitted with an optional glass top
(part no. VW-7NGB). The top has 5 x silicon feet on the
bottom to space it off the steel top.
6
2.4 Place the glass top, feet down, on the appliance. Ensure the
glass top is flush with the front and sides of the steel top.
3. CO Alarms
All open flued appliances can be affected by temporary
atmospheric conditions which may allow fumes to enter
the house. Building regulations require that whenever
a new or replacement fixed solid fuel or wood/biomass
appliance is installed in a dwelling a carbon monoxide
alarm must be fitted in the same room as the appliance.
Further guidance on the installation of the carbon
monoxide alarm is available in the latest edition of
BS EN50292 and from the alarm manufacturer's
instructions.
HETAS recommend the unit is permanently fixed
in accordance with the manufacturer's installation
instructions or with the guidance contained in Approved
Document J where no other information is available.
Provision of an alarm must not be considered a
substitute for either installing the appliance correctly
or ensuring regular servicing and maintenance of the
appliance and chimney system.
25
CENTRAL HEATING SYSTEM
When designing a heating system in the UK the
following standards must be observed:
• BS EN 14336:2004 Heating Systems In Buildings,
Installation & Commissioning of Water Based
Heating Systems.
• BS EN 12828 2003 Heating Systems in Buildings,
Design of Water Based Heating Systems.
• BS EN 12831: 2003 Heating Systems in Buildings,
Method for Calculation of the Design Heat Load.
1. General
This appliance gives out heat in two ways:
—Directly into the room in which it is fitted through
convection and radiation.
—Hot water to heat radiators and domestic hot water.
The installation must comply with building regulations and
use best practice advice.
IMPORTANT:
FAILURE TO ADD AND MAINTAIN A SUITABLE
CORROSION INHIBITOR IN THE BOILER WATER
CIRCUIT MAY INVALIDATE YOUR PRODUCT
WARRANTY.
2. Boiler Sizing
2.1 It is very important to determine the correct size of appliance
for the house:
—Too big a boiler will run too hot and will not be efficient.
—Too small a boiler will not maintain the desired temperature.
2.2 Size the boiler correctly by calculating the following heat loads:
RADIATORS - the amount of heat required to run the
radiators efficiently. The correct size of radiator depends on
the required temperature for the room, the room heat losses
andtheradiatormanufacturer’sguides.
HOT WATER - the amount of heat required to provide the
desired amount of domestic hot water.
LOSSES – the amount of heat lost in pipe work - typically
10% of the combined radiators and hot water loads.
There are national guidelines for calculating these figures*.
2.3 Careful consideration must be given to where the appliance
is fitted. It must be sized correctly for the heat load required
and the size of the room. These requirements can be found
in the Installation Checklist.
2.4 All Stovax appliances are thermostatically controlled. The
burning rate is adjusted to the demands of the connected heat
load. If the radiators do not require heat then the thermostat
will act to shut down the appliance and the direct heat output
to the room where it is fitted will reduce (see heat output graph
on page 15 to show the ratio between direct heat output and
water heat output). To prevent the room becoming too cold, fit
a thermostatically controlled radiator as well as the appliance.
Installation Instructions
3. Hot Water Cylinder
3.1 The domestic hot water cylinder must be an indirect vented
double feed type to meet national standards** and should have
a minimum capacity of 117 litres. Houses with more than one
bathroom or a separate shower will need a bigger tank.
Fully insulate the tank.
The water draw off pipes to the taps should be in a dead leg
connection from the vent pipe.
4. Open Vent & Cold Feed System
4.1 This system must be fitted with a minimum of 22mm diameter
open vent discharging into a heat resisting feed and expansion
tank. There must be at least 25mm air gap between the end of
the pipe and the water level. The cistern tank should have an
overflow with a minimum diameter of 22mm.
The cold feed must be a minimum 22mm and enter the
system as the last connection on the common boiler return.
The open vent and cold feed must not be fitted with any
valves, manual or automatic.
Do not use plastic pipe in any part of the flow and return.
5. Heat Leak Radiator
5.1 A heat leak radiator must be fitted in the gravity circuit to
dissipate any excess heat produced from the boiler when
connected demand is low. The domestic hot water cylinder
may not be able to disperse heat at all times due to modern
insulation. This radiator is commonly fitted in the bathroom
and should be rated at 2kW (6500 btu) or 10% of the total
boiler output.
This radiator ensures that the appliance is not shut down
completely for long periods resulting in the fire going out.
Fit the heat leak radiator in the gravity circuit using 22mm
pipe reducing to 15mm for no more than 300mm before the
radiator.
Fittheradiatorwithtwo‘lock-shield’valvesthatareset
in the fully open position and cannot be shut down. Use
diagonal connections. Do not fit thermostatic valves or
manually adjustable valves to the heat leak radiator.
6. Pump
6.1 Where a pump is fitted into the circuit it should be adjustable
so that the flow can match the system requirements. Fit
isolation valves to enable removal for servicing. The pump
must have at least 1.5 meters of static head.
In the Uk:
† England and Wales - Document (/ Scotland - Part N/
Building Regulations
‡ BS7671
* See BS 5449:1
** See BS 1566 Part 1 grade 3 minimum
Registered body: HETAS (GB only)/ INFO (Eire)
26
Installation Instructions
Stovax High Output Boiler
installed to BS8303, ADJ and these installation instructions
High limit pipe thermostat
to bring on circulator in an
overheat situation
Thermostatic radiator valves
to provide temperature zoning
Heat Leak radiator
with two full way lock
shield valves
Two port
normally open motorized valve
controlled by cylinder thermostat
Low limit pipe thermostat
to prevent the pump coming on until a
minimum temperature is reached
Injector tee
to pump assist the
thermosyphon circuit when
the pump is operating
Double Feed
indirect cylinder
Feed and
Expansion Cistern
Cold Water
Storage Cistern
Typical layout of a pumped central
heating hot water circuit with gravity
Pump and
isolating valves
Programmable room
thermostat
Feed and
Expansion
Cistern
Cold Water
Storage Cistern
Double Feed
indirect cylinder
Circulator and
isolating valves
Two channel
programmer
Two port
normally open motorized
valve controlled by room
thermostat and programmer
Stovax High Output
Boiler
installed to
BS8303, ADJ and
these installation
instructions High limit pipe thermostat
to bring on circulator in an
overheat situation
Low limit pipe thermostat
to prevent the pump coming on until a minimum temperature is reached
Heat Leak radiator
with two full way lock
shield valves
Thermostatic radiator valves
to provide temperature zoning
Two port
normally open motorized valve controlled by
cylinder thermostat and programmer
Two port
energised closed when
pump activated
Typical layout of a pumped central
heating and hot water circuit
27
7. Electrical Supply
7.1 Electrical connections must meet the requirements of
national Building Regulations† and standards‡, along with
any European, local regulations and working practices that
may apply. Should conflict occur between these instructions
and these regulations then the regulations must be followed.
The connection to the mains supply should allow
complete electrical isolation and only serve the heating
circuit pump.
All water connections should be completed by a competent
person to meet the requirements of local water authority
by-laws.
CONVENTIONAL PIPEWORK SYSTEMS
All pipe work must be able to operate at above 100
degrees Celsius. Any pipe work installed in an exposed
position e.g. loft space must have provision to prevent
freezing.
Ensure the pipe work system has sufficient drain
points to enable the complete removal of water for the
purposes of servicing.
8. Gravity Pump Circuit
8.1 To prevent the risk of boiling it is essential to arrange the
pipe work and position the hot water cylinder and heat leak
radiator so that gravity circulation can take place when the
pump is not running. Position the cylinder and the radiator
vertically above the boiler with sufficient height to encourage
gravity flow.
8.2 Horizontal pipe work in a gravity system must have an
incline of at least 5mm in every 1000mm and a minimum
diameter of 28mm. Vertical pipe must have a minimum
diameter of 22mm.
8.3 Any motorised valves fitted in this circuit must return to the
fully open position when the power is interrupted.
9. Pump Assisted Central Heating
9.1 The most common arrangement is to have a pumped central
heating circuit combined with a gravity hot water circuit. This
arrangement requires careful balancing of the two in order
to avoid the gravity circuit being starved when the pump is
running.
To overcome this problem it is common practice to fit an
injector tee where the pumped central heating return re-joins
the gravity return from the hot water cylinder. This injector tee
induces a much stronger gravity flow when the pump runs.
Only use proprietary injector tees, homemade ones are
difficult to get right.
9.2 When installing a system that has pumped central heating
and gravity hot water it is recommended to use all 4
boiler tappings. Each flow and return should be diagonally
opposite each other.
10. Fully Pumped System
10.1 In many installations (especially new build) a fully pumped
system is the best choice to give increased control.
WARNING - To prevent the risk of boiling it is essential
to arrange the pipe work and position the hot water
cylinder and heat leak radiator so that gravity
circulation can take place when the pump is not
running. Any motorised valves fitted in this circuit must
return to the fully open position when the power is
interrupted.
11. Sealed (Pressurized) System
11.1 Do not fit this appliance to sealed or pressurised systems or
an unvented hot water cylinder.
12. Pipework Diagrams
12.1 See below for a typical layout of a pumped central heating
and gravity hot water circuit.
HEATING SYSTEM CONTROLS
CONTROLS GENERAL
1.1 The controls fitted to the system will provide two functions:
— To control the comfort level in the house.
— To maintain safety in the event of misuse or mechanical
failure.
COMFORT CONTROLS
1.2 This primarily consists of a time clock wired into the pump.
The pump is switched on when heat is required and when it
is not, the pump is switched off.
The time clock, when combined with a room thermostat and
or thermostatic radiator valves, enhances the comfort levels
in the house.
Some room thermostats combine the function with the
time clock and can be programmed to reduce the room
temperature rather than turning the system off. This is
effective in not allowing the rooms to become too cold and
speeding up recovery time.
1.3 The hot water cylinder can also be fitted with a thermostatic
valve which turns off the flow when the cylinder has reached
the desired temperature but the heat leak radiator will have
to be bigger to cope with the extra load when the tank is
isolated.
SAFETY CONTROLS
1.4 This primarily consists of a high limit thermostat fitted to
thegravityflowpipesetat80˚C,thisthermostatshould
be connected to the pump so that the pump is turned on if
thetemperatureexceeds80˚C.Thiswillpreventaccidental
boiling in the gravity circuit.
Installation Instructions
28
1.5 It is also recommended to fit a low limit thermostat on the
centralheatingreturnsetat45˚C,thisthermostatwillturnthe
pumpoffifthereturntemperaturefallsbelow45˚C.Thiswill
prevent corrosion and condensation within the appliance.
CONDENSATION
1.6 When filling the boiler with water for the first time, the cold
water entering the water jacket can cause condensation to
form on the surfaces of the appliance (inside and outside).
1.7 In certain conditions this condensation could result in a
considerable amount of water, in some cases enough to fill
the bottom of the appliance. This could be even worse if the
house has recently been re-decorated, wet plastered or any
other work has been undertaken which could result in high
humidity.
1.8 Precautions must be taken to ensure that this build up of
condensate does not overflow from the appliance onto any
surrounding fabric of the room e.g. carpets.
NOTE - THIS CONDENSATION IS NORMAL DURING
FILLING AND DOES NOT INDICATE A FAULTY OR
LEAKING APPLIANCE.
NORMAL RUNNING
1.9 During normal running this condensation should be minimal
if the system is fitted with the low limit thermostat as detailed
in 1.5. This low limit thermostat prevents the system pump
from running until the appliance has reached temperature.
SEASONAL USE
1.10 If this appliance is unused for lengthy periods of time it
should be periodically checked to ensure that condensation
is not building up within the appliance.
NOTE – THIS CONDENSATION IS NORMAL AND DOES
NOT INDICATE A FAULTY OR LEAKING APPLIANCE.
If the appliance is going to be unused for very long periods
of time it is recommended to drain the system.
NOTE – Further information on solid fuel central heating
systems can be found in the HETAS engineers training
manual.
LINK UP SYSTEMS
For information on how to link solid fuel boilers to other
heating appliances see Information For Dual System Link
Up Methods (PM286). This can be obtained through Stovax.
Call (01392) 474011, email info@stovax.com or visit
www.stovax.com for details.
Always seek the advice of a competent person* before
linking another heating system to a solid fuel boiler.
Installation Instructions
*Registered on the Competent Persons Scheme (GB
only) see page 38/ INFO (Republic of Ireland).
29
1. Commissioning
1.1 To commission:
— Replace the internal components.
— Check the door alignment and catch operation, adjust if
required, see Maintenance & Servicing, Section 5.
— Check the soundness of door seals, castings and joints.
— Check the operation of the air controls.
— Ensure the system has been filled with water and
includes a suitable inhibitor.
1.2 Now carry out a final smoke draw test:
— First warming the flue with a blowlamp, or similar, for
about 10 minutes.
— Place a smoke pellet on the centre of the grate, with the
air controls open.
— Close the door. Smoke should now be drawn up the flue
and be seen to exit from the flue terminal.
— Complete test with all doors and windows closed in the
room where the appliance is fitted.
— If there are any extractor fans in adjacent rooms, the test
must be repeated with the fans running on maximum and
interconnecting doors open.
— Check the effect of ceiling fans during the test.
If the test fails, re-check the suitability of the flue system
and ventilation. An inadequate air supply to the room is
potentially dangerous.
— Light the appliance and slowly increase the temperature
to operating levels.
— Ensure no combustion products enter the room.
— Open the main fire door when the appliance reaches
operating condition and carry out a spillage test with a
smoke match or pellet around the door opening.
— Run the system up to temperature.
BALANCING THE SYSTEM
It is essential to balance the central heating system in
order to achieve an even heating performance across all of
the radiators in the house. Balanced means each radiator
havinga10˚Cdifferenceintemperaturebetweentheflow
andthereturn,ideally80˚Cflowand70˚Creturn.
Have the system running and adjust the appliance
thermostat so that the flow temperature measured near
theapplianceisapproximately80˚C.Ensurethatallvalves
including lock-shield valves are in the fully open position
and the pump is at its estimated correct speed. If there
are thermostatic radiator valves, have these on maximum
setting and ensure that they do not activate.
Ensure that the radiators have been bled of air.
Write down the return temperature of each radiator in turn
and its difference to the flow temperature at the appliance.
Make sure that the flow temperature remains constant.
The radiator with the greatest difference (the index radiator)
and any other radiator within 1 degree should be left with
the lock-shield fully open. The remainder of the lock-shield
valves should be closed to about 1/3 open. Leave the
system to stabilise, this could take some time.
When the system has stabilised, write down the new
difference between the flow and return temperatures and
any which differ from the index radiator by more than 1
degree will need further adjustment, some valves will have
been closed too much and others not enough, usually the
adjustments need to be only a fraction of a turn at a time.
Leave sufficient time for the system to stabilise after each
adjustment.
When the radiator temperatures are starting to become
consistent, but before final adjustments, the index radiator
needs to be considered, if the return temperature of this
radiator is not near 70 degrees then the pump will need
to be adjusted to either provide more (to increase the
temperature) or less flow to decrease the temperature.
Again, sufficient time will need to be left to allow the system
to stabilise after adjusting the pump speed.
When the radiator flow and return temperatures are correct
the final adjustments can be made and the lock-shield
covers replaced.
Knowing how far to shut down a valve to get the desired
change in flow and return temperature, and knowing how
long to wait for the system to stabilise, takes a little time and
practice.
1.3 If excessive spillage occurs:
— Allow the appliance to cool and re-check the flue system
and ventilation.
1.4 Finally:
— Explain the safe operation of the appliance and the
use of the controls to the user and the importance of
only using suitable fuels.
— Ensure that a thermostat has been fitted and make
the user aware of its operation and importance.
— Ensure that a CO alarm has been fitted and make the
user aware of its operation and importance, referring
them to the Warning section on page 6 of the User
Instructions.
— Explain the cleaning and routine maintenance
requirements.
— Explain the requirement to use a suitable fireguard
when children, elderly or infirm persons are near the
appliance.
—Record dealer/supplier and installer details
in Appliance Commissioning Checklist (page 3,
Instructions for Use).
—Record serial number in Appliance Commissioning
Checklist (page 3, Instructions for Use). This number
is required when ordering spare parts and making
warranty claims.
— Give the copy of the Instructions to the customer.
Commissioning
30
Certificate Of Compliance
Upon completing the installation, the form below must be filled in by your installer to comply with the requirements of HETAS and
the building regulations. The installer must give theses details, including their HETAS registration number, for the purposes of any
insurance details that may change as a result of the appliance being installed.
31
Maintenance & Servicing
For a complete list of spare parts and accessories
contact your Stovax or call 01392 474011
1. Annual Service
IMPORTANT: Stovax provide gauntlet style gloves
for the users protection from heat and any sharp
edges when using the appliance.
For your safety ensure that gloves are always
worn when opening, operating, refuelling or
handling internal metalwork.
1.1 Before the start of the heating season strip, inspect and
clean the appliance as detailed:
—Allow appliance to cool.
— Remove all internal parts; baffle, log guard, grate system
and ashpan.
—Remove the Woodburning tray (if fitted), see Maintenance
& Servicing Section 3. Clean with a wire brush.
—Sweep the appliance at this point if necessary.
—Clean the internal surfaces of the appliance using a wire
brush and scraper as required. Vacuum and brush the
resulting debris from the appliance.
—Clean the grate parts with a wire brush.
—Vacuum clean any remaining ash and debris from the
inside of the appliance. Stovax offer a filter/collection
attachment for vacuum cleaners to protect them from fire
ash: Ash Clean (Stovax Part No. 2091).
—Check the parts for any damage. Replace any damaged
parts using genuine Stovax replacements parts.
—Re-fit cleaned internal parts.
—Remove glass from door, discard all old rope seals and fit
new (see Maintenance and Servicing, Section 4).
— On appliances with printed glass do not use cleaning
agents that have a high alkaline or acidic content, for
example Stovax Gel Cleaner, these are aggressive
cleaning agents designed to be used with heavily
stained clear glass. On printed glass surfaces, use
Stovax Glass Cleaner (Stovax No.4103) which is better
formulated for this application.
Do not use abrasive cleaners to remove tar or soot
deposits from the glass.
—Fit new door rope seal (see Maintenance and Servicing,
Section 5).
—Lightly oil the door catch mechanism and hinge pins.
Avoid getting oil onto the door seals and glass.
— To refresh painted finishes a touch up spray is available.
Contact your Stovax retailer quoting the serial number found
on the appliance date badge.
1.2 Use genuine Stovax replacement parts to keep the
appliance in safe, efficient working order. This is a list of the
maintenance products that may need be required:
Task Product name
Preventing build-up of
creosote in flue
Protector (15 sachets)
Protector (1kg tub)
Sealing flue pipe joints
Fire Cement (500g tub)
Fire Cement (600g cartridge)
Re-painting 400ml Touch up aerosol
Protecting your hands Heat resistant leather gloves
Thermic seal glue (50ml bottle)
Ash Clean Vacuum Cleaner Attachment
Cleaning Glass
Gel Cleaner
Glass Cleaner (Stovax no. 4103)
These products, available online at www.stovax.com
or from your local Stovax Retailer, along with regular
maintenance and use of correct fuels, will keep the
appliance in the best possible condition.
1.3 For more information about the Stovax Group products
please visit our web site at www.stovax.com
1.4 Burn at a low temperature for the first day of use after any
maintenance. This allows the seals, fixing glues and paint to
fully cure.
1.5 During this time the appliance may give off some unpleasant
odours. Keep the room well ventilated to avoid a build-up of
fumes.
1.6 Your Stovax Retailer can carry out service and maintenance.
2. Removal of Internal Parts
2.1 To service and maintain the good working condition of your
appliance it will be necessary to remove several internal
parts. Consult the installation section for the following:
Log Guard - Pre-Installation Section 4, page 20.
Baffles - Pre-Installation Section 5, page 20.
Riddling Mechanism - Pre-Installation Section 6, page 21.
32
3. Removing the Woodburning Tray
(if fitted)
To maintain safe use of the appliance the Woodburning tray
should be removed and cleaned regularly .
3.1 Remove the log guard and ashpan.
3.2 Remove ash from the Woodburning tray with a small shovel
and place into a Stovax Ash Caddy (Stovax Part No. 4227)
or other suitable container.
3.3 Lift one side of the tray and rotate out through the front of
the appliance, see Diagram 1.
1
3.4 Clean with a wire brush.
3.5 Replace in reverse order.
4. Fitting a new Door Glass
To maintain safe use of the appliance damaged door glass
must be replaced immediately.
To do this:
4.1 Open the door.
4.2 Remove the steel top and glass top, if fitted,
(see Installation Instructions, Section 2).
4.3 Lift the door free of hinge blocks.
4.4 Lay the door face down on a soft, flat surface to protect the
paintwork, glass and controls.
4.5 Remove the glass clamp and screws x 8. The old glass can
then be lifted clear of the door.
Note how the sealing rope is placed around the glass.
4.6 Dispose of the old glass safely.
Maintenance & Servicing
Fixing Screws x 8
Door
Glass rope
seal
C
Glass rope
seal
B
Glass rope
seal
A
2
Seal Length mm
Glass rope seal A 1140
Glass rope seal B 390
Glass rope seal C 400
4.7 Clean and re-paint the rear of the door if required.
4.8 Clean the screws with light oil and coat with high
temperature anti-seize grease to aid future removal.
4.9 Fit new glass sealing rope (B) onto the glass clamp,
see Diagram 3.
Glass rope
seal
C
Glass rope seal
B
Black face
Glass clamp
3
33
Maintenance & Servicing
4.10 Carefully wrap glass sealing rope (A) round the sides and
bottom edge of the glass, see Diagram 4.
Glass rope seal
A
4
4.11 Fix glass sealing rope (C) to the matt black side of the top
face, see Diagram 3.
4.12 Place the glass into position in the door.
4.13 Place the glass clamp into position and re-fix with the clean
fixing screws, tightening the screws evenly until glass is held
securely.
Do not over tighten the screws as this could break the
glass.
4.14 Fit only original Stovax ceramic glass, which is suitable to
use in high temperature applications.
4.15 Using the appliance with damaged door glass could cause
dangerous fumes to enter the room or the appliance to over-
fire resulting in damage.
5. Fitting a new Door Seal
To maintain the safe use of the appliance damaged or worn
door sealing rope must be replaced.
To do this:
5.1 Open the door.
5.2 Remove the steel top and glass top, if fitted,
(see Installation Instructions, Section 2).
5.3 Lift the door free of hinge blocks.
5.4 Lay the door face down on a soft, flat surface to protect the
paintwork, glass and controls.
5.5 Remove old rope and scrape old glue from locating groove.
Joint
Door rope seal E
Door rope seal D
5
Seal Length (mm)
Door rope seal D 1700
Door rope seal E 175
5.6 Clean the locating groove with a clean, dry cloth to remove
all old dust and debris.
5.7 Squeeze a generous bead of fresh Stovax Thermic Seal
glue into the rope locating groove.
5.8 Press the new Stovax rope into the locating groove, placing
the joint in the middle of the lower edge of the door.
5.9 Refit door and close to apply pressure to new rope.
5.10 Leave the door(s) closed for at least 12 hours before
lighting the appliance and run at a low temperature for
approximately one day. This allows the adhesive to fully
bond to the seal.
5.11 Using the appliance with a damaged door seal can cause
dangerous fumes to enter the room, or the appliance to over
fire resulting in damage.
6. Adjusting the Door Hinges
6.1 To maintain the safe use of your appliance, you may need to
adjust the door hinges to ensure the door closes safely and
correctly.
6.2 To complete this operation:
— Open the door.
— Remove the steel top and glass top, if fitted,
(see Installation Instructions, Section 2).
— Lift the door free of hinge blocks.
—Lay the door face down on a soft, flat surface to protect
the paintwork, glass and controls.
34
6.3 Use an M6 hexagon key to loosen the 4 x M6 screws.
M6 screws
x 4
6
6.4 The hinge plate assembly is slotted so it can be moved up,
down and sideways by approximately 3mm to adjust the
position of the door in relation to the appliance.
6.5 Once the desired position has been achieved ensure the
screws are firmly tightened against the hinge plate assembly
to maintain the position.
7. Adjusting the Door Catch
To adjust the door catch:
7.1 Open the door to gain access to the catch.
7.2 Use a 13mm A/F spanner to loosen the half lock nuts either
side of the appliance body. This will allow the dome catch to
rotate in and out, see Diagram 5 below.
Dome catch
Washer
Appliance body
Half lock nuts
7
7.3 Once the desired setting has been achieved ensure the lock
nuts are tightened against the appliance body.
Maintenance & Servicing
8. Removing the Glass Plinth
8.1 Open the door as wide as possible.
8.2 Lift the plinth upward to clear the 2 x side fixing screws,
see Diagram 9.
Lift plinth clear of 2 x screws
9
8.3 If the plinth is too loose it can be adjusted via the 2 x side
screws and half lock nuts behind it. The plinth is designed to
sit tight but still be removable.
35
Technical Appendix
Legal Requirements
Before installation and/or use of this appliance please read these
instructions carefully to ensure that all requirements are fully
understood.
The appliance must be fitted by a registered installer, or
approved by your local building control officer.
It is very important to understand the requirements of the national
Building Regulations† and standards‡, along with any local
regulations and working practices that may apply. Should any
conflict occur between these instructions and these regulations
then the regulations must apply.
Your local Building Control Office can advise regarding the
requirements of the regulations.
Works must be carried out with care to meet the requirements of
Health and Safety and comply with the Health and Safety rules,
and any new regulations introduced during the lifetime of these
instructions. Particular attention should be drawn to:
—Handling: The appliance is heavy. Adequate facilities
must be available for loading, unloading and on site
handling.
—Fire Cement: Some fire cement is caustic and must not
come into contact with the skin. Protective gloves must be
worn. Wash hands thoroughly with plenty of water after
contact with skin.
—Asbestos: This appliance contains no asbestos. If there
is the possibility of disturbing any asbestos in the course of
installation seek specialist guidance and use appropriate
equipment.
—Metal Parts: Take care when installing or servicing the
appliance to avoid personal injury.
A faulty installation can cause danger to the inhabitants and
structure of the building.
For users of this appliance:
Your building insurance company may require you to inform them
that a new heating appliance has been installed on your property.
Check that your cover is still valid after installing the appliance.
Flue Outlet Positions
150mm
max
Vertical
Measurement
Terminal
Insulation
Flue
Horizontal
Measurement
Adjacent
Building
The datum for vertical measurement is the point
of discharge of the flue from either the point of
discharge of the flue or 150mm above insulation,
whichever is the lower.
IMPORTANT: Seek specialist advice if
installing in a dwelling with a thatched roof
These positions are defined by Document J of the Building Regulations.
Adjacent Building
Point where the flue passes through weather surface
(Notes 1 & 2)
Clearances to flue outlet
A
At or within 600mm of the ridge At least 600mm above ridge
B
Elsewhere on roof (whether pitched or flat) At least 2300mm horizontally from the nearest point on the weather surface and:
a) at least 1000mm above highest point of intersection of the chimney and the weather surface; or
b) at least as high as the ridge
C
Below (on a pitched roof) or within 2300mm horizontally to
openable rooflight, dormer window, or other opening (Note
3)
At least 1000mm above the top of opening
D
Within 2300mm of an adjoining or adjacent building,
whether or not beyond the boundary (Note 3)
At least 600mm above any part of the adjacent of building within 2300mm
1) The weather surface is the building external surface, such as it's roof tiles or external walls.
2) A flat roof has a pitch less than 10°.
3) The clearance given for A or B, as appropriate, will also apply.
4) A vertical flue fixed to an outside wall should be treated as equivalent to an inside flue emerging at the nearest edge of the roof.
† England and Wales – Document J / Scotland - Part
F/Document J (Republic of Ireland only)
‡ the latest edition of BS 8303, BS EN 15287, BS 7566
*Registered on the Competent Persons Scheme
(GB only) see page 38/ INFO (Republic of Ireland).
36
Technical Appendix - Flues
2. Flue or Chimney
2.1 The flue or chimney system must be in good condition.
It must be inspected by a competent person and passed for
use with the appliance before installation.
Products of combustion entering the room can cause
serious health risks.
2.2 The following must be checked:
— The construction of the masonry chimneys, flue block
chimneys and connecting flue pipe system must meet the
requirements of the Building Regulations†.
— A flexible flue liner system can be used if certified for
use with solid fuel systems and installation complies with
manufacturer’sinstructionsandBuildingRegulations.
The flue liner must be replaced when an appliance is
replaced, unless proven to be recently installed and in
good condition.
— If it is necessary to fit a register plate it must conform to
the Building Regulations†.
— The minimum height of the flue or chimney must be 4.5m
from the hearth to the top of the flue, with no horizontal
sections and a maximum of 4 bends. Bends must have
angles of less than 45 degrees from the vertical.
— Ensure the connecting flue pipe is kept a suitable
distance from any combustible material and does not form
part of the supporting structure of the building.
— The installer must ensure the flue pipe diameter is not
less than the diameter of the outlet of the appliance and
does not narrow to less than the size of the outlet at any
point in the system.
— Make provision to remove the appliance without the need
to dismantle the chimney.
— Any existing flue must be confirmed as suitable
for the new intended use as defined in the Building
Regulations.
— The flue or chimney systems must be inspected and
swept to confirm the system is structurally sound and
free from obstructions.
— If the chimney is believed to have previously served an
open fire it must be swept a second time within a month of
regular use after installation to clear any soot falls that may
have occurred due to difference in combustion levels.
— The flue exit from the building must comply with local
building control rules†.
— Do not connect or share the flue or chimney system with
another heating appliance.
2.3 Do not connect to systems containing large voids or spaces
over 230mm square.
2.4 Suitable access must be provided to enable the collection
and removal of debris.
2.5 The flue must be swept and inspected when the appliance
is installed.
Flue Draught
The flue draught must be checked with all windows and
doors closed and any extraction fans in this, or adjoining
rooms, running at maximum speed (see Installation
Checklist for ventilation requirements).
Twin Wall Flue System
If this appliance is to be used in conjunction with a twin
wall flue system then Stovax recommend the use of
their Professional XQ range. Details of this product are
available from your Stovax retailer.
In the U.K:
*BS EN 15287-1, and the requirements of Building
Regulations
**This should be done by a NACS registered (UK
only)/INFO registered (Eire only) chimney sweep,
who will issue you with a certificate.
† Building Regulations Document J
Flue Plate:
Where a hearth, fireplace, flue or chimney is
provided or extended (including cases where a
flue is provided as part of refurbishment work),
information essential to the correct appliance and
use of these should be permanently posted in the
building, to meet Requirement J4 of the Building
Regulations (England and Wales), F3.12 (Scotland).
Additional:
A new factory made system that complies to EN
1856; Part 1 can be used providing installation is
to the requirements of:
i) BS 7566 Parts 1 -4
ii) the manufacturer's instructions
iii) Building Regulations.
For a guide containing information on Chimneys
and Flues contact:
The British Flue & Chimney Manufacturers’
Association,
FETA
2 Waltham Court
Milley Lane
Hare Hatch
Reading
Berkshire RG10 9TH
Tel: 0118 9403416 e-mail: info@feta.co.uk
37
Ventilation - Technical Appendix
2. Ventilation
2.1 Many older buildings are sufficiently ventilated by natural
leakage of air to provide suitable air supply for an appliance of
5kW output or less.
Modern building techniques have reduced the amount of air
that leaks in or out of a house. A modern construction with an
air tightness of less than 5m3 per hour per m2 requires an air
vent for ALL solid fuel appliances including those with a rated
heat output of less than 5kW.
NOTE: The air leakage of a modern house is tested at the
completion of construction and a certificate issued confirming
this.
2.2 This appliance requires a constant supply of air to maintain
proper combustion and effective flue performance.
2.3 An inadequate air supply can result in poor combustion and
smoke entering the room which is potentially dangerous.
2.4 This supply of air can come from either:
— Purpose provided ventilation.
2.5 The amount of air required must comply with local building
regulations and the rules in force.
2.6 If spillage is detected during commissioning then there may
be insufficient natural ventilation and an additional air supply
will be necessary.
2.7 Permanent air vents should be non-adjustable and positioned
where they are unlikely to be become blocked.
2.8 If vents open into adjoining rooms or spaces there must be an
air vent of at least the same size direct to the outside.
2.9 Site the vents where cold draught is unlikely to cause
discomfort. This can be avoided by placing vents near ceilings
or close to the appliance (See diagram).
2.10 Extractor fans or cooker hoods must not be placed in the
same room or space as this can cause the appliance to emit
fumes into the room.
2.11 Increase air supply provisions where a room contains multiple
appliances.
2.12 If any checks reveal problems do not proceed with the
fitting of the appliance until they have been rectified.
3. Minimum Dimensions - Hearth
3.1 The appliance must stand on a non-combustible
constructional hearth which is at least 125mm thick with the
minimum dimensions as shown in diagram.
As this appliance can be installed in an elevated setting it is
recommended to increase the 225mm hearth depth to safely
contain any falling logs or embers. The higher the appliance
is installed the deeper the hearth should be to protect the
floor.
3.2 The building must have a suitable load-bearing capacity for
the hearth and appliance. Consult a structural engineer for
advice before proceeding.
3.3 When fitting into an existing hearth check that the appliance
complies with current construction regulations and is at least
the minimum sizes shown.
3.4 If there is no existing fireplace or chimney it is possible to
construct a suitable non-combustible housing and hearth
setting. The flue must be installed in accordance with all
local and national regulations and current rules in force.
3.5 Check if adding a new chimney to your property requires
planning permission.
3.6 Some houses are built using a timber frame construction
with high levels of thermal insulation. Isolate the appliance
from combustible materials, and provide sufficient ventilation
to maintain the heating efficiency.
38
5. Builders Opening
Many fireplace openings have a supporting lintel. Remove
the covering plaster to identify its position before starting
any constructive work. Do not remove constructional lintels
without making provision to support the remaining structure
of the building. The appliance must not form any part of the
supporting structure.
5.1 The chimney/flue must have a sealed connection to the
appliance flue spigot.
5.2 The structure of the builders opening will reach high
temperatures. Use insulating blockwork to reduce the heat
transfer to the external walls, in particular the area of the
chimney breast above the opening.
5.3 Take care when finishing the chimney breast and
surrounding area. The conducted and convected heat
emitted by the appliance could be high enough to crack
normal plaster. Use a high temperature plaster, or face
the area with a suitable high temperature plasterboard.
New plaster should be fully dried before the appliance is
used, or cracking could occur.
If you are in any doubt about your ability to produce
a safe opening contact your Stovax dealer for
professional advice*.
4. Fitting Appliances On A Boat
4.1 If an appliance is to be fitted in a boat it must be done in
accordance with the latest edition of BS 8511 (Code of
Practice for the Installation of Solid Fuel Heating Appliances
on Boats). The Code covers the design, installation
and operation of solid fuel heating appliances that are
suitable for fitting into inland waterway boats, and gives
guidance on product selection, design considerations,
installation requirements, inspection and testing, as well as
maintenance and safe use tips.
4.2 Consideration should also be given to the requirements
of the Boat Safety Scheme (BSS) to ensure the boat's
insurance remains valid.
4.3 The appliance should only be installed by a competent
person with experience of the latest edition of BS 8511 and
the Boat Safety Scheme (BSS).
4.4 Secure the product to a suitably constructed non-
combustible hearth.
4.5 All open flued appliances can be affected by temporary
atmospheric conditions which may allow fumes to enter the
boat. An electronic carbon monoxide detector conforming
to the latest edition of BSEN50292 must be fitted and
maintained.
4.6 Failure to safely install the appliance could endanger the
boat and persons on board.
Technical Appendix
* In the U.K. Additional information covering the
installation of the appliance may be found in the
following British Standards: BS EN 15287, BS6999,
BS8303.
Organisations authorised to certify competence in
the installation of domestic solid fuel appliances
(Competent Persons Scheme):
APHC - Association of Plumbing and Heating
Contractors (Certification) Ltd.
www.aphc.co.uk
BESCA - Building Engineering Services Competence
Accreditation Ltd.
www.besca.org.uk
HETAS - Heating Equipment Testing and Approval
Scheme Ltd.
www.hetas.co.uk
NAPIT - National Association of Professional
Inspectors and Testers Ltd.
www.napit.org.uk
NICEIC - NICEIC Group Ltd.
www.niceic.org.uk
HETAS Approved Chimney Sweeps:
NACS - The National Association of Chimney Sweeps
www.chimneyworks.co.uk
APICS - The Association of Master Chimney Sweeps Ltd.
www.apics.org
The Guild of Master Chimney Sweeps -
guildofmasterchimneysweeps.co.uk
39
Model
View 7 Inset HO
Boiler MF
View 7 Inset HO
Boiler W
Direct Efficiency Class A A
Direct Heat Output (kW) 11.00 11.00
Indirect Output (kW) 7.00 7.00
Energy Efficiency Index (EEI) 97 97
Useful Energy Efficiency at Nominal Heat
Output 74% 74%
Safety Precautions Appliance must be installed, Used and Maintained in accordance with the
manufacturers instructions supplied
Product Fiche - Information Requirement for Solid Fuel Local Space Heater
Information Requirement - Solid Fuel
40
Basic Spare Parts
Ref. Description
1BAFFLE ASSEMBLY
2FRONT ASSEMBLY SEAL 10 x 2 x 1775
LG S/A BLACK ROPE
3DATA PLATE MOUNT
4VIEW TOP PANEL
5BACK RIDDLING BAR
6THIN MF RIDDLING SOCKET
7M6 x 16 BUTTON HEAD SCREW
8RIDDLING TOOL ASSEMBLY
9ASH PAN ASSEMBLY
10 ASH PAN TOOL ASSEMBLY
11 DETACHABLE FRONT ASSEMBLY
12 PLINTH ASSEMBLY
13 LATCH SCREW
14 DOOR ASSEMBLY
15 LOG GUARD
16 RIDDLING CAM ARM
17 MF RIDDLING GRATE FRAME
18 GRATE BAR - FIXED
19 GRATE BAR - MOVING
20 THERMOSTAT BLANKING PLATE
21 THERMOSTAT BLANKING BAR
22 THERMOSTAT SLOT COVER ASSEMBLY
23 N/A
Ref.
No. Description
1OUTER DOOR CASTING
2DOOR EXPANSION SPRING - LE 030CD 01S
3HINGE PLATE ASSEMBLY
4DOOR GLASS
5MID DOOR SEAL 15 x 2 x 390 LG S/A TAPE BLACK
6PRIMARY AIR SLIDER PLATE
7PRIMARY AIR CONTROL SLIDER
8GLASS CLAMP
9N/A
10 ROPE SEAL (BLACK) Ø13MM X 1700MM
10 ROPE SEAL (BLACK) Ø13MM X 175MM
11 15MM x 2MM x 1140MM S/A TAPE BLACK
11 15MM x 2MM x 400MM S/A TAPE BLACK
12 AIR WASH CONTROL SLIDER
13 AIR WASH SLIDER PLATE
14 SHOULDER SCREW
15 LONG SHOULDER SCREW
16 CATCH SLIDER ASSEMBLY
41
1ST SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
3RD SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
5TH SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
7TH SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
9TH SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
2ND SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
4TH SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
6TH SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
8TH SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
10TH SERVICE
Date of Service:.................................................................
Next Service Due:............................................................
Signed:.............................................................................
Retailer's Stamp/HETAS Registration Number
Service Records
Stovax Ltd, Falcon Road, Sowton Industrial Estate, Exeter, Devon, England EX2 7LF
Tel: (01392) 474011 Fax: (01392) 219932 E-mail: info@stovax.com www.stovax.com
E & O E
… 16 …

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