7.4 : Efficiency Standards for Commercial HVAC




7.4.1 Efficiency Standards for Commercial Warm Air Furnaces
Effective for products manufactured on or after January 1, 1994
Thermal Efficiency (1)
Gas-fired, with capacity ≥ 225,000 Btu/hr Not less than 80%
Oil-fired, with capacity ≥ 225,000 Btu/hr Not less than 81%
Note(s): 1) Measured at the maximum rated capacity.
Source(s): Title 10, Code of Federal Regulations, Part 431 - Energy Efficiency Program for Certain Commercial and Industrial Equipment, Subpart D - Commercial Warm Air Furnaces. January 1, 2010.









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Sources:

Title 10, Code of Federal Regulations, Part 431 - Energy Efficiency Program for Certain Commercial and Industrial Equipment, Subpart D - Commercial Warm Air Furnaces. January 1, 2010