5.3 : Heating, Cooling, and Ventilation Equipment

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Related Tables:

5.3.2 Residential Furnace Efficiencies	PDF	XLS
5.3.3 Residential Boiler Efficiencies	PDF	XLS
5.3.4 Residential Air Conditioner and Heat Pump Cooling Efficiencies	PDF	XLS
5.3.10 Main Residential Heating Fuel, by Vintage, as of 2001	PDF	XLS

Sources:

Appliance Magazine, A Portrait of the U.S. Appliance Industry, Sept. 2009, p. 38 for service and average lifetimes, and units to be replaced

ASHRAE, 1999 ASHRAE Handbook: HVAC Applications, Table 3, p. 35.3 for boilers service lifetimes

EIA, Housing Characteristics 1990, May 1992, Table 7, p. 24 for 1990 average stock ages