Heating
How do I determine the appropriate BTU rating for my heating job?
If you need to determine how much heat you'll need for the space in question, you'll need the following 3 numbers: - Cubic footage of the space to be heated (length x width x height)
- Desired heat rise (difference between expected outside ambient temperature and the desired temperature of the building you want to heat up)
- Engineering factor of .133
Example: If you need to heat up 20,000 cubic feet of space to 72 degrees on a day where the temperature is 20 degrees outside, the formula would be the following: - Cubic feet = 20,000
- Desired heat rise is 72 - 20 which = 52
- Engineering factor is .133
Multiply these three numbers together and you'll get the number of BTU required for the job.
BTU required for this job would be 250 x 52 x .133 = 138,320 BTU
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