Robeys Kilowatt Calculator

Please use the calculator below to give you an idea of the suggested heat requirement needed for your room in kW :

This is just a rough guide, factors such as the number of outside walls, the size of windows and whether they are double glazed, the age of the home etc, can all influence the heat requirement.

Enter the room sizes in the boxes specified and then click the "Calculate" button. This gives an approximate output for use as an initial guide in selecting an appliance based on an outside temperature of -1°C and a room with average insulation. However we strongly recommend that a site survey is undertaken before you make your purchase.

Room Length (m):

Room Width (m):

Height of Ceiling (m):

Volume of room:

Required heat output: