Enter the information concerning your installation in the fields below to determine the best size furnace for your needs.
Room Dimensions by Feet
Length:
Width:
Ceiling Height:
Insulation:
No Insulation
Ceiling Insulation Only
Ceiling and Wall Insulation
Lowest outside winter temperature
Climate:
-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
Input Btu./hr. Required:
Select a model closest to your Btu/hr calculation