Heat Calculator

Room Measurements:
* Width: m
* Length: m
Window Measurements (total of each face):
Window area (North facing)
Window area (South facing)
Room Use and Type:
Number of occupants
Electrical equipment/lighting:
The wattage is normally written on the equipment or light. 1kw = 1000w.
Total Equipment Wattage
Total Lighting Wattage
Total BTU/hr
Total Watts/hr
Total Kw/hr
This calculator is provided for a quick and approximate check of heat loads. It should not be considered as a replacement for expert advice or a precise and detailed heat load calculation. For this you should contact Clean Air. Whilst we have taken every precaution to help ensure this calculator is accurate, we accept no responsibility or liability resulting or howsoever arising from its use.