Advice and tips

Environmentally-friendly wood burning

Burning wood is 100% climate-neutral and a renewable resource. Modern wood-burning stoves exploit up to 90% of the energy in a log and give off 90% fewer particles than old models. A clean-burning stove is one that conforms to the Norwegian requirements for emissions described in NS 3059. The stove has a combustion system that converts up to 90% of the gases and particles in the smoke into heat. Because you are burning correctly, this can mean a considerable reduction in wood consumption.

All the stoves have been tested and approved by SINTEF. The environmental test follows NS 3059 and the safety test EN 13240. The stoves are also certified in accordance with the European standard for safety EN 13240 and environmental tests DIN+ and 15A.

Wood-burning is recommended by the authorities and environmental organisations.

Use dry firewood

Dry wood has a maximum water content of 18–20%. To check if the wood is dry, take two logs and hit them against each other. If you hear a sharp, clinking sound, the wood is dry; a soft thud means there is too much moisture in the wood. Dry wood has cracks. Use wood that is 5–10 cm thick. Thicker pieces make lighting more difficult and are less efficient. Never burn chipboard, plastic, driftwood or painted, varnished or impregnated timber. These give off toxic gases and can cause very high temperatures and overheating of the stove.

Combution techiques -burn correctly

The right way to burn wood is from the top! This halves the particle emissions from the chimney and uses the wood much more efficiently. When the wood at the bottom of the stove heats up, it gives off gases that represent half of its energy. These gases will be ignited when they come into contact with the flames in the upper layer. With the right combustion technique, you can save the environment and use less wood.

How to use a solid soapstone stove

To heat the house quickly and effectively, we recommend proceeding as follows: Normally use 2–3 kg of wood at a time, loading two or three times over a two-hour period. Combustion interval: two or three times a day.

1. Use dry firewood.
2. Put four to eight pieces of firewood on top of each other, with kindling wood and one or two firelighters on top.
3. Keep the door ajar until the fire takes a good hold. The wood will burn downwards at a high temperature and the stove will be good and warm after thirty minutes.
4. Always keep a good draught while wood is burning. This gives a cleaner and more efficient combustion.
5. When needed add more wood when the wood has burnt down to a glowing heap. The stove is heated right through after two to three hours burning.
6. When the burning period is over, close the draught. The stove will now give off heat for up to twelve hours.

Heating requirement

A home with a good, normal standard of insulation has a heating requirement of about 60-70 watts per square metre. To heat a 50-square-metre room, you need about 3,500 watts. Soapstone stoves over 300 kg can be used as the primary heating in most homes.

Base plate

The floor must have a fireproof covering at least 30 cm in front of the stove. A floor of a flammable material under the stove must be covered by a fireproof plate. We supply natural stone base plates of marble or slate that are suited to each stove. The floor must be level.


Stoves up to 400 kg can normally be placed on a wooden floor if the stove is placed on a specially designed stone plate that covers two floor beams. The heaviest stoves may need the floor to be reinforced. Contact a dealer for assessment.

Ventilation, chimney and draught

All stoves and fireplaces must have enough air for optimum combustion and to avoid smoking. Vents in windows do not normally provide enough air, so air must be provided from vents in the walls, from a fresh-air duct from the outer wall to below the stove or a direct connection to the stove. The soapstone stoves have a high degree of efficiency and relatively low flue gas temperatures. It is therefore important to know the interior measurement and height of the chimney when you choose a stove. Poor draught is often caused by too narrow a cross section, too low a chimney or too many hearths and stoves using the same chimney. The dealer can advise you on how stove and chimney can work best together.


Our stoves are supplied as building sets and are easy to fit. You do not need screws, glue or sealing compound. The stoves have a smoke outlet at the back as standard, but can be ordered with outlets on the side or on top. The stoves are suited to a smoke tube of 125 mm. The Alex model uses a 150 mm smoke tube. You can buy smoke tubes from your dealer. Dealers can offer professional fitting of our stoves, which ensures fitting according to the regulations. Before a stove is first used, it must be checked by a qualified inspector, and an enrolment form or a copy of the inspection form is to be sent to the local authority's fire and chimney sweep office.

When the stove is new

he soapstone in the stove contains some water when it is new, but this will gradually disappear in use. For a short period, damp mixed with soot may come out between the stones from time to time. This can be washed off with soapy water or polished away with sandpaper. The first few times the stove is lit, do not use too much firewood and preferably use dry kindling wood and paper for lighting. Burn with the door open to begin with, then with full draught and little firewood at a time for one to two hours with the door closed. After three or four weeks the stone will be dry and the stove can be used normally.

Cleaning and maintenance

UThe outside of the stove can be cleaned with soapy water. Difficult spots can be removed by polishing lightly with sandpaper or fine steel wool without soap. Minor damage can be repaired with the accompanying repair kit. Annual interior cleaning and chimney sweeping is recommended.