To work out your requirements, multiply your room width and length measured in metres, by your room height in metres (i.e. 5 m x 7 m =35 x 2.5 m = 87.5). This means that your room, with a normal sized window and number of doors, has a volume of 87.5 cubic metres and will need approximately a (87.5÷14) 6 kW Scan stove or fireplace. Please ask your authorised Scan dealer for further assistance in your choice of Scan stove or fireplace.