Please enter the room sizes in meters in the boxes specified. This gives an approximate output for use as an initial guide in selecting an appliance based on an outside temperature of -1°C and no other heat source in the room. However we strongly recommend that a site survey is undertaken by an experienced stove installer before you make your purchase. Other factors to consider would be large windows/external glass doors which will increase the required output and how close you will sit to the stove which may decrease the output required the closer you are to the stove. Please note that you will require an air vent into the room if the nominal output of the stove is over 5kW.
Appliances are selected with an output slightly greater than the requirement to allow for more rapid heating in colder weather. Figures are based on approximate heating requirements shown in the HETAS® Guide to Solid Fuel Products and Services.