High efficency heat pump with NG backup. Heat pump shuts down at 32degrees outside temperature and then the gas kicks in.
Your 32 year old furnace is probably not 95% eff. anymore trust me. And if is a Trane furnace probably has a cracked heat exchanger. We replace more Trane heat exchanger then on any other furnace out there.House is NG forced air, furnace is 32 years old, still 95% eff. I was going to replace this year but why ?!
If I was to live longer, I'd go GeoThermal.Overall a cleaner, better system. They were too much $$ 3 decdes ago...a lot cheaper now.
I have the same stove. Burn about 4 ton/year. Ductless mini split heat pumps as well, but my electric bills still run $400/mo plus about a ton of pellets per month. Wifey likes to be warm and you just can't get that from heat pumps.Harman XXV pellet stove @ 50k BTU. Stove can burn up to 50% corn, but haven't tried it.