Long story short, HVAC guy says the furnace is toasted beyond what's financially worth trying to fix. Also, AC unit is undersized for the house (PO added 1000ft^2); so I had intended to replace it this summer anyway. Original plans were this:
Bryant Plus 90i furnace
Byrant Preferred series 4 ton HP
I'll try to portray the following situation without naming prices per forum rules; so bear with me...
So I asked the guy about a closed-loop geothermal HP, and if it was a viable option. He guestimated a geothermal system similar in performance to the above dual-fuel set-up would be roughly double the cost. But...
Considering the 30% tax credit with no cap on the geo HP; it shaves the overall difference in 1/2. What I'm spending in propane right now, the rest of the gap will be bridged in less than 2 heating seasons of not buying propane.
People talk about how expensive a geo HP system is and how its really only worth it for a new construction or if you're going to spend decades in the home... so what am I missing?
What features do you consider essential for a geo HP system? Any specific brands/units you'd recommend that would have similar performance and controllability to the above dual-fuel system?