Life expectancy of AC vs heat pump
Getting bids on replacing 15-year-old AC/gas furnace. HVAC repairman brother installed old system, requests I buy something with a good warranty and then call him when the warranty runs out (I think I overworked him these past couple of years). He recommends Trane. Have had three bids so far, not going to get into prices, but I make my money squeal so will research this to death before deciding.
Question du jour is this: What would you expect the life expectancy to be of a Trane heat pump/gas furnace combo versus a Trane AC/gas furnace combo... some numbers I can recall (estimate is upstairs) 13 SEER, 100K BTU 80%. I didn't ask the first two bidders regarding how long the difference systems would be expected to last, but did the last one (because the heat pump seems to be out of my budget - we *really* do not like going into debt) and he estimates life of AC/furnace is approx 25 years if properly maintained, and heat pump/furnace more like 12 since the heat pump runs year round.
BTW - He is a Trane dealer and bought a heat pump this past spring for his own home, but admits he got a great deal that I cannot.
I'm in Kansas City, MO, if that means anything... we're not known for any specific kind of weather, though.