What is the life expectancy of a Rheem heat pump is 14 to 18 years with normal residential use and proper maintenance, which is similar to industry average for heat pumps of 14 to 18 years and slightly shorter than gas furnace at 18 to 22 years because heat pump runs year-round for both heating and cooling, doubling annual run hours to about 2,500 to 3,000 hours versus AC only at 1,200 to 1,500 hours. Rheem heat pumps including Classic RP14 14 SEER single stage, Classic Plus RP16 17 SEER two-stage, and Prestige RP20 20 SEER variable speed are built with standard Copeland scroll compressors and plate fin coils designed for 15-year service life. Life expectancy depends heavily on climate, usage, and maintenance. In hot climate like Texas and Florida where heat pump runs 10 months per year for cooling, life expectancy is 12 to 15 years due to more run hours and thermal stress and salt air corrosion near coast. In moderate climate like North Carolina where runs 6 to 8 months, life expectancy is 14 to 18 years. Factors that shorten life expectancy include lack of annual maintenance with coil cleaning twice yearly, dirty filter causing high head pressure that strains compressor, and poor installation with incorrect refrigerant charge that reduces efficiency by 10 to 20 percent. Common parts failing first include capacitor after 5 years at 150 to 300 dollars and compressor after 12 to 15 years at 1,500 to 2,500 dollars.
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