How long does a heat pump last?

A heat pump (air-source, ducted) typically lasts 10 to 15 years. A ductless mini-split heat pump typically lasts 15 to 20 years. That's the range most inspector and industry references agree on; the sources are listed below. Your unit's age is in its serial number: decode it here.

What shortens it

• The wrong size. An oversized unit short-cycles and an undersized one runs constantly, and both wear out the compressor sooner.
• Harsh winters or hot summers, on top of running for both heating and cooling.
• Skipped tune-ups and dirty filters.
• An outdoor unit hemmed in by leaves, debris or snow.
• Budget equipment. Carrier puts low-tier models at 8 to 12 years against 15 to 20 for premium ones.
• Clogged filters in the indoor units.
• Skipped service on the outdoor unit and on each indoor unit.
• Harsh winters or hot summers and year-round use.

Signs it's time to plan a replacement

• It is more than 10 years old.
• Energy bills keep climbing with no change in use.
• Service calls several times a year, or a repair approaching half the cost of a new system.
• Some rooms too hot or too cold.
• Grinding, squealing or banging, or unusual smells.
• Service calls several times a year.

Find your heat pump's age by brand

Rheem · Ruud · Trane · American Standard · all brands