7.3 : Efficiency Standards for Residential HVAC




7.3.3 Efficiency Standards for Residential Boilers
Effective for products manufactured before September 1, 2012
AFUE(%) (1)
Boilers (excluding gas steam) 80
Gas Steam Boilers 75
Effective for products manufactured on or after September 1, 2012 (2)
AFUE (%) (1) Design Requirements
Gas Hot Water 82 No Constant Burning Pilot
Automatic Means for Adjusting Water Temperature
Gas Steam 80 No Constant Burning Pilot
Oil Hot Water 84 Automatic Means for Adjusting Water Temperature
Oil Steam 82 None
Electric Hot water None Automatic Means for Adjusting Water Temperature
Electric Steam None None
Note(s): 1) Annual Fuel Utilization Efficiency. 2) Boilers manufactured to operate without any need for electricity, an electric connection, electric gauges, electric pumps, electric wires, or electric devices are not required to comply with the revised standards that take effect September 1, 2012. These must, however, meet the standards that were effective prior to September 1, 2012.
Source(s): Title 10, Code of Federal Regulations, Part 430 - Energy Conservation Program for Consumer Products, Subpart C - Energy and Water Conservation Standards and Their Effective Dates. January 1, 2010.









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Sources:

Title 10, Code of Federal Regulations, Part 430 - Energy Conservation Program for Consumer Products, Subpart C - Energy and Water Conservation Standards and Their Effective Dates. January 1, 2010