Air-source heat pump vs. geothermal heat
We are planning to build a new home in a rural middle Tennessee where the climate is considered as moderate. The builder recommends foam insulation throughout and plans to make it very tightly insulated. I’ve read numerous articles on the pros and cons between air heat pumps, mini-splits and geothermal. I’ve had a couple estimates from some local heat & air companies for both. Geothermal was estimated with a base price of $34K, but with some recommended additional added items like a fresh air exchange handler, dehumidifier, etc. it was closer to $45K. The air heat pump was $16,800, but with the same add on’s it would be around $27,800. Even with the 30% tax credit geothermal would be $2000 more. I like what I’ve read on the mini-splits as being very efficient, but don’t like the aesthetics of wall mounted units. I think I am in agreement that geothermal (while it has it’s place) may not be the best option due to the payback. Nobody can tell me what the average month savings is between a geothermal unit and an air heat pump. Are there good efficient mini-splits that can be centrally ducted and would it make sense to have a dual fuel option like propane since we plan to have this for our cooking and hot water?
GBA Detail Library
A collection of one thousand construction details organized by climate and house part