Heating BTU Calculator
Room Dimensions
(in feet)
Length:
Width:
Ceiling Height:
Insulation:
No Insulation
Ceiling Insulation Only
Ceiling and Wall Insulation
Lowest Outside Temperature:
-30°F / -34°C
-20°F / -28°C
-10°F / -23°C
0°F / -17°C
10°F / -12°C
20°F / -6°C
30°F / -1°C
40°F / 4°C
Btu/Hr Required:
Vent Free Heaters
Vented Heaters
Gas Unit Heaters
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