kW HEATING CALCULATOR - NOTE: This is for one room

Room type:
Living Room
Dining Room
Hallway

Kitchen
Bedroom
Bathroom
Is the house:
Sheltered
Average
Exposed
Window type:
Single Glazed
Double Glazed
     
Length (Metres) Width (Metres) Height (metres)
 
 

Please reset inputs after you calculate if you wish to make changes to the calculation

 
BTU/hr
to
Watts
to

THIS CALCULATOR IS A GUIDE ONLY

A radiator with insufficient output may never raise the temperature to that required. Outdoor temperatures, external walls, insulation, heated adjacent rooms (i.e. above, below and to the side) all play a part. The boiler should be suffient to supply all connected radiators to the sum of their maxmium demand.