The environment will thank you. Since Lokaterm stoves are intended predominantly for the burning of deciduous wood, in a deep sense, they do not pollute the environment with CO2, a greenhouse gas. It is known that upon complete burning of wood, which our stoves greatly ensure, exactly the same amount of carbon dioxide (CO2) is given off as trees require for their growth (photosynthesis) and formation of wood mass. This means that unlike heating with fossil fuels (gas, oil and coal), our stoves do not pollute the earth's atmosphere with additional quantities of greenhouse carbon dioxide and sulphur oxides (SOx).
We presume that your fireplace stove has been installed professionally, that your chimney meets the fire safety regulations and that the room with the installed fireplace stove has an adequate supply of air for combustion or that the attachment for the supply of fresh air for combustion with the option of connecting it directly onto the stove (with newer versions) is constructed. The supply of fresh air should have a cross-section of min. 100 cm2, a length of up to 4m and four 90° elbows at the most.
Flue pipes (between the stove and the chimney) should be as short as possible and should lead to the chimney in as straight a line as possible. The chimney should have a diameter of 150 mm. The height of the chimney should be at least 4 m, measured from the firebox (approximately the height of the grate in the stove) to the chimney top (the cowl). The abovementioned values are approximate and apply to standard average conditions (weather conditions, the manner of burning, fuel). Accurate data regarding chimneys is determined by chimney designers.
Remove all packaging and labels from the stove. Special attention should be paid to the labels on the firebox door glass, as the glass temperature increases substantially during the operation of the stove (to as high as 500°C). Any possible label and glue residues from labels on the glass can get charred during the operation of the stove, creating acrid smoke and adhering to the glass. Charred black label residues are extremely difficult or impossible to remove from the glass without damaging the glass surface. Observe all instructions for assembly and use of the stove and use the provided accessories (instructions, glove, rošilo , etc.).
Carefully read the provided instructions and observe the manufacturer’s recommendations.
When you first heat up the stove, open all windows in the room. During the heating, the stove’s colour completely dries/sets and a white mist with an unpleasant odour is produced.
Use only dry wood – the most suitable are beech and birch.
Open the primary and secondary air valves (if a hatch is installed into your flue pipe, make sure it is fully open)!
Place two to three fire starter cubes (or Polja crumpled dry paper) in the firebox and place wood chips or firewood on the cubes.
Ignite the cubes (or paper) and leave the firebox door ajar (do not close it completely) in order to prevent the condensation of flue gases directly on the door glass. In this manner, you prevent the formation of soot (blackening) on the door glass at the beginning of heating.
If the firewood is too close to the door, carefully (slowly) open the firebox door to prevent the entry of flue gases into the room.
Use only the amount of firewood listed in the instructions for use.
When your stove reaches the operating temperature, gradually close the supply of primary air to the amount listed in the instructions for use (depending upon the fuel used).
We recommend leaving the secondary air valve fully open. In this manner, you prevent the formation of soot (blackening) on the door glass while at the same time enabling the flow of air Zahtevano! for fuel combustion into the stove. You may close the secondary air valve only after the fuel has burned down and only the embers remain in the firebox (no flames).
Regulate the power of stove operation by the amount of loaded fuel as much as possible.
Do not close the secondary air valve during burning, as this can result in irregular combustion and consequently unnecessary burdening of the environment with greenhouse gases (carbon monoxide) and excess pollution of the firebox, door glass and chimney.
The data regarding the room heating efficiency in our sales documents should help the customer with the selection of the fireplace stove size. The fireplace stove should not be excessively dimensioned – too large for any room. Oversized stoves require constant reduction of draught, which may prevent the optimal fuel consumption. Consequently, the stove is not sufficiently heated and soot is formed on the door glass, while the flue gas condenser and soot accumulate on all surfaces that come into contact with flue gases.
The room heating efficiency of the fireplace stove complies with the EN 13240 standard and is provided in three different rates (see technical data in our brochure!)..
This data depends also upon the position of the room with the installed fireplace stove.
The most favourable heating conditions are found in rooms that face south and have only one external wall.
Less favourable heating conditions are found in rooms with only one external wall and unheated adjacent rooms.
Unfavourable heating conditions are found in rooms that face north and have two external walls.
The basic guideline is that a room of at least 15 – 20 m2 can be heated per 1 kW of nominal stove heating power – applies to new facilities with good insulation and sealed windows and doors, or 7 – 10 m2 in facilities with poor insulation and regular windows and doors.
This is a common problem with fireplace stoves and fireplaces with panoramic glass. Flue gases condense on the (relatively) cold glass and blacken the interior surface. First rule: Place the firewood completely at the back towards the back wall. Always place the firewood into the stove crosswise, never with the sawn surface facing the glass (most of wood gas is namely emitted from the sawn surface of the wood!). Use only dry unprocessed wood (no wood residues).
Properly constructed fireboxes prevent the blackening of the glass by supplying preheated combustion air, which is drawn toward the upper edge of the glass (secondary air). However, this system functions only if the primary air supply (the supply of air through the grate under the flame) is left only slightly open or is completely closed. The primary air supply remains open only during the beginning of heating, until the fuel ignites.
This problem occurs frequently in fireplace stoves with large doors. When you open the door during operation, the chimney should immediately suck large quantities of air and smoke, thus creating vacuum in the entire area of the door opening. The chimney can be efficient only if it has a sufficient cross-section and height. Therefore, a chimney sweep or an expert regarding fireplace stoves and fireplace assembly should inspect whether the chimney is suitable for the fireplace stove prior to its purchase.
However, in case the “incorrectly chosen” stove has been installed into your living room, the following suggestions may Poljatimes be helpful:
Check whether the hatch in the flue pipe between the stove and the chimney is open.
First, just slightly open the door and wait a few seconds. Then slowly open the door so far as to allow the loading of firewood.
Place the firewood transversely at the back of the firebox, bearing in mind that the firebox is very hot. You should therefore use a special purpose tool for loading the firewood.
In principle, during the operation of the stove, the discharge of flue gas directed vertically upwards has a better effect upon the operation of the stove than the discharge towards the back surface.
Check whether the flue pipe between the stove and the chimney is clean.
Our advice: If in doubt, ask your chimney sweep – he/she will check the chimney and the stove.
In most cases, the reason is a polluted – clogged flue pipe between the stove and the chimney or the chimney itself. Check whether the valve in the flue pipe between the stove and the chimney is in the proper position (open). When starting a fire, the smoke is often pushed back, because the chimney hasn't warmed up yet. The chimney “draws” only when the air is warmer inside than outside. In particular, chimneys that run high on the external wall need a small "push" in the beginning.
Place Polja paper into the lower opening for cleaning the chimney (door) and ignite it. A sudden rise in temperature at the chimney bottom will force the operation of the chimney.
The cross-section of the chimney may be too small or the stove door is too large (see above: Smoke during the loading of firewood).
Our advice: Discuss the problem with your chimney sweep at the next sweeping.
Your stove could contain a defect. When the door and window seals are leaking, the burning in the stove cannot be regulated properly. If the glass moves, you should check the sealing of the window.
The door seal is the part that is subjected to wear and must be checked regularly for a proper operation. It must tightly fit the sealing surfaces of the stove when the door is closed. The closed ash drawer must seal perfectly (if it is equipped with seals).
Our advice: If you notice defects related to sealing, consult your chimney sweep during the next sweeping or consult the authorised repairer.
After the fire has gone out, small pieces of unburnt firewood are often found in the firebox for one of two reasons: In most cases, the wood is not dry enough when put on the fire (20% of moisture at the most), and therefore only the part lying directly on the embers of the fire will burn up, while the rest will go out immediately after the additional heat source goes out.
The second reason is the firebox structure or improper use: after the enabled burning, no air from the bottom (through the grate) should be supplied to the wood. The firewood burns up immediately after being placed directly on the grate. Firewood ends do not burn. The optimal burning is on the embers (as with camp fires). The air for burning is supplied from above and from the side.
At the beginning of heating, the air must be usually supplied from the bottom (primary air) in order to ignite the wood. When the wood (fuel) starts burning, the supply of primary air must be closed. After that, only the “secondary air” is supplied (air from above). In this manner, the glass will remain clean with quality fireplace stoves.
Our advice: Leave the wood residues in the firebox, as they usually form the optimal embers for the following burning process.
The surfaces of chamotte firebox linings frequently contain thin cracks. This is normal, considering that the temperature of chamotte can rise to 600°C or more. High temperatures enable the optimal combustion of flue gases and prevent the condensation and the formation of pitch in the firebox.
However, parts of chamotte that fall off into the stove can cause problems, as this can lead to damage to the firebox covering or excessive heating of the back wall (in fireplaces).