It is important to choose the stove with the heating power best suited to the space to be heated. It is a matter of determining which stove will be lit as often as possible, making it the most economical and most environmentally friendly.
How to determine the power required ?
The power of a stove is expressed in kW and indicates the amount of useful heat (i.e. heat which actually heats the house) that this stove can produce.
This heat must effectively compensate, as closely as possible, for the heat that the building naturally loses. The power required to heat a room varies depending on outside temperature, the size of the room, which way the property faces, geographical location and the standard of insulation in the building ...On the other hand, greater power would be required for a second home, which would have to be heated up quickly at the beginning of the weekend.
A stove that is too small will not be able to heat up (or reheat) the room in cold weather. Alternatively, a stove that is too powerful will often work at a low rate in conditions that are not very beneficial. Sometimes it will overheat the room even at a lower rate. Choosing a 20 kW stove where a 10 kW model would be sufficient would be a very bad decision.
These various factors mean it is not easy to carry out a simple calculation. The best way to make sure you choose the Stûv best suited to your requirements is to consult your supplier. He will be able to assess your needs on site. Explain how you intend to use your stove and he will be able to advise you in your choice.