Because a heat pump handles both heating and cooling, it logs more total operating hours per year than an AC-only system or a furnace that only runs half the year. That extra use is the main thing that shapes its lifespan.
Because a heat pump runs nearly year-round here, staying ahead of its age matters more than with a seasonal system — worth a conversation about heat pump installation before it fails on you.
The Typical Range
Most heat pumps last 12–15 years, somewhat shorter than the 15–20 years you might expect from a furnace that only runs seasonally, simply because it’s working nearly year-round in our climate.
What Extends the Life of a Heat Pump
- Twice-yearly maintenance: Because it runs in both heating and cooling seasons, a heat pump benefits from a spring and a fall check — not just one annual visit.
- Keeping the outdoor unit clear: Regularly removing leaves, mulch buildup, and ice (see our defrost guide) prevents strain on the compressor and fan motor.
- Prompt refrigerant leak repair: A heat pump low on refrigerant works significantly harder in both modes, accelerating wear.
- Correct sizing at installation: An undersized or oversized heat pump works outside its efficient range constantly, shortening its service life.
What Shortens It
- Skipped maintenance, especially ignoring the outdoor unit through winter.
- Running with low refrigerant for an extended period without addressing a slow leak.
- Heavy reliance on backup electric heat due to an undersized system, which doesn’t wear the heat pump itself but often signals the system was never right for the home.
Signs Yours Is Nearing the End
Rising bills, frequent repairs, reduced heating capacity on cold days, or age past 12 years combined with any of the above are worth having evaluated before a peak-season breakdown.