My HVAC guy likes heat pumps, but he thinks their lifespan is about 1/2 or 2/3 the life of an HVAC unit; the equipment is the same (pumps, motors, etc), but the

My HVAC guy likes heat pumps, but he thinks their lifespan is about 1/2 or 2/3 the life of an HVAC unit; the equipment is the same (pumps, motors, etc), but the heat pump runs nonstop year-round. He still prefers heat pumps, since they're all electric, and can be solar powered (I'm in Texas); so, the combination makes a lot more sense, in the long-run.