5.3 : Heating, Cooling, and Ventilation Equipment




5.3.3 Residential Boiler Efficiencies (1)
Gas-Fired Boilers Oil-Fired Boilers
Average shipped in 1985 (2): 74% AFUE Average shipped in 1985 (2): 79% AFUE
Best Available in 1981: 81% AFUE Best Available in 1981: 86% AFUE
Best Available in 2007: 96% AFUE Best Available in 2007: 89% AFUE
Note(s): 1) Federal appliance standards effective Jan. 1, 1992, require a minimum of 80% AFUE (except gas-fired steam boiler, which must have a 75% AFUE or higher). 2) Includes furnaces.









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Sources:

GAMA, Consumer's Directory of Certified Efficiency Ratings for Residential Heating and Water Heating Equipment, Aug. 2005, p. 88 and 106 for best-available AFUE

GAMA for 1985 average AFUEs

GAMA Tax Credit Eligible Equipment: Gas- and Oil-Fired Boilers 95% AFUE or Greater, May 2007

GAMA Consumer's Directory of Certified Efficiency Ratings for Heating and Water Heating Equipment, May 2007