BTU Calculator
Room area
sq ft
Ceiling height
ft
m
Above 8 ft the room holds more air to move.
Sunlight
Heavily shaded
Average
Very sunny
People in the room regularly
Above two, each person adds about 600 BTU an hour.
Is it a kitchen
No
Yes
Heating factor for your climate
BTU per sq ft
For heating: about 30 in the mild south, 40 in the middle, 50–60 in the far north.
Cooling capacity needed
6,000 BTU/hr
Show the work
BTU Calculator
by Rule Calculator