BUT Calculator

BTU Calculator

BTU Calculator

Other Factors:

  • Sunlight: If the room is sunny, increase the BTUs by 10%.
  • Occupancy: Add 600 BTUs for each additional person beyond the first two people.
  • Appliances: Add extra BTUs for heat-generating appliances in the room (e.g., 400 BTUs for a stove).

The BTU calculation typically focuses on the floor area (length × width) rather than the room’s height because most residential and commercial spaces have a standard ceiling height, usually ranging from 8 to 10 feet.