FIKO 70
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9. COOKING
Pots used for cooking should have a massive and flat bottom and a suitable lid. The cook-top lid must not be removed when cooking.
Firing flap valve must be set on position 1 (= open), oven door must be open.
Cooking: Wood is the most suitable fuel for cooking (temperature is maintained easier than with other fuels), cooking conditions are even
better when small quantities of fuel are added during cooking. When wood is not available put several doses of briquettes in the fireplace
to make abundant embers.
Fuel quantity: hard wood: approx. 1.1 kg, lignite briquettes: 1.1 kg.
Setting of primary and secondary air sliders is the same like for nominal heating capacity.
10. ROASTING AND BAKING
Do not put aluminium paper, pots and pans on the bottom of the oven to prevent enamel from deteriorating due to heat accumulation.
Fruit juice dropping from pans may leave irremovable spots on the enamel. The oven must be pre-heated. Pans with meals that need
more space in height should be put on a grille on the bottom of the oven or slid in one of the lower tracks. Pans with flat meals should be
slid in the bottom track. Do not use pans made of tinned (white) metal if possible.
Set the firing flap valve on 0.
Light fire should be kept to maintain a temperature of 180-200 ºC. Adjust the air sliders and add small quantities of fuel.
For roasting and grilling greater fire is needed to maintain a temperature over 250ºC. Exceptionally, long burning wood is the most suitable
fuel for roasting and grilling.
The same instructions like those for cooking apply here except the firing flap valve which must remain shut (position 0). If needed
temperature is impossible to be achieved with open slider then chimney draught is insufficient.
Flue way in the cooker needs to be cleaned. Also, make sure that all equipment connected to the same chimney is closed. If high
temperature is still difficult to be obtained, ask your chimney-sweep.
Fuel quantity: hard wood: 1.1 kg, lignite briquettes: 1.1 kg.
Setting of primary and secondary air sliders is the same like for nominal heating capacity.
11. OPERATING NOTES
The minimum operating chimney draught for trouble free operation is 12 Pa. The cooker should be cleaned thoroughly and checked as
needed and vermiculite replaced if deteriorated.
Service life of the cooker is longer with appropriate maintenance. Any cracking of the cooker when firing and cooling is not a defect.
12. ECONOMICAL OPERATION
Economical heating does not mean less heat but less fuel cost. Economical and effective operation is at risk if the cooker is untight, e.g.
untight draught shaft. Incorrectly installed smoke pipes may also show untightness. Therefore connection of the cooker directly to the
chimney is the best solution.
The cross section of the chimney for the cooker is 15x15 cm. Store fuel on a dry place. Dry fuel burns better and gives more heat with
low consumption.
Only acceptable fuels may be burn in the cooker. Follow the instructions in this manual for burning different fuels.
Do not add more fuel on the grille unless the first dose of fuel has not burnt well, otherwise you increase fuel consumption and vents are
increasingly loaded with soot.
Observe flue gas in the chimney outlet to see whether they are well burnt. Dark, thick flue gas appears when fuel is charged incorrectly
and light flue gas appears in a few minutes when fuel is charged correctly. No roaring sound can be heard in the cooker when heating is
correct. Roaring indicates incorrect heating, heat leakage and presence of unburnt substances in the chimney.
If roaring appears (when heating in line with these instructions) in the cooker, adjust the chimney draught by reducing the supply of air in
the fireplace.
After some time of heating fire may weaken in the cooker (usually in rooms with tight doors and windows) but it burns well when windows
or doors are open. Too tight room or lack of oxygen may be the reason. The problem can be solved by opening a window or a door. The
best way how to assure continuous intake of air in the room is to remove the sealing from the upper part of the window.
If the fire burns well after firing but degrades later, the grill may be charged with ash.
Bad burning is caused by:
- wet fuel,
- too thick fuel charge,
- poor fuel charge not covering the grille allowing cold air to flow around the charge,
- poor air supply into the fireplace or room.
Unless operated correctly the cooker may get loaded with soot and fine ash, therefore inside parts need to be cleaned from time to time
in line with the instructions herein. Soot in the flue ways and under the cook-top is undesired heat insulation.
Optimum air humidity is needed to obtain good conditions in the room therefore it is recommended to use evaporators.
13. PRECAUTIONS
The wood heater cannot be operated under conditions increasing the risk of generating flammable gases, fire or explosion risk (e.g.
laying a floor with an adhesive etc.).
- This instruction must be followed when operating the cooker.
- The cooker can be operated by adults only. It is unacceptable to let children in front of an operational wood heater.
- No flammable liquids are accepted for firing.
- IT IS STRICTLY FORBIDDEN TO INCREASE THE NOMINAL CAPACITY DURING THE OPERATION OF THE WOOD HEATER BY
USING FLAMMABLE LIQUIDS OR BY OPENING THE ASHTRAY DOOR.
- No flammable objects should be put close to the ashtray door.
- Evacuate ash carefully and dispose it in non-flammable bins with lids.
- A defective cooker with risk of malfunction must not be operated. The user must have the cooker repaired by an expert before
