To produce a comfortable room temperature of around 21º/22º Celsius (70º Fahrenheit), when the outside temperature is 0º, you will need about 1kW of heat for every 14 cubic metres of space. 1kW is the equivalent of approximately 1 bar of an electric fire.
Simply choose your working units, put in your room measurements, and click the "calculate" button to give the heat output required to adequately heat your room.
A stove with a higher output can be used if it is to be run with a lower fuel level. A small increase in the heat output may be required depending on the number of windows and doors and the level of insulation there is in the room.
