5.3 : Heating, Cooling, and Ventilation Equipment




5.3.8 Major Residential HVAC Equipment Lifetimes, Ages, and Replacement Picture
Typical Service Average 2005 Average Units to be Replaced
Equipment Type Lifetime Range Lifetime Stock Age During 2010 (1,000s)
Central Air Conditioners 8 - 14 11 8 5,354
Heat Pumps 9 - 15 12 8 1,260
Furnaces
Electric 10 - 20 15 11 N.A.
Gas-Fired 12 - 17 15 11 2,601
Oil-Fired 15 - 19 17 N.A. 149
Gas-Fired Boilers (1) 17 - 24 20 17 204
Note(s): Lifetimes based on use by the first owner of the product, and do not necessarily indicate that the product stops working after this period. A replaced unit may be discarded or used elsewhere. 1) 2005 average stock age is for gas- and oil-fired steam and hot water boilers.









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Sources:

Appliance Magazine, U.S. Appliance Industry: Market Share, Life Expectancy & Replacement Market, and Saturation Levels, January 2010, p. 10 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