Geothermal Heat Pump vs. Air-Source Heat Pump vs. High-Efficiency Furnace
Patrick suggested I’ll get a few responses to this query, so here we go!
I expect my oil burning furnace to die soon and am proactively planning my replacement. Would you recommend geothermal (GSHP), an air pump (ASHP), or an upgraded high efficiency furnace?
– Zone 5, in New York where there are a lot of green energy incentives
– 2800 sq ft DUCTED home
– Current setup includes an oil-burning furnace, electric water heater, and no air conditioning (sweating with a couple window units at the moment)
– Would do a vertical closed loop install
– Cost before tax credit would be about $28k ($21k post-credit)
– Would definitely increase my already very high electric bills. Dream would be to add PV panels at one point.
– Haven’t gotten any quotes yet. In some ways, seems like goldilocks solution (electric and less expensive than geothermal)
– Concerned that even if they’ve gotten better, they might not be enough for my Zone 5 weather and I would need a backup oil furnace to run when it’s really cold. Not sure if I have space in my utility room for that much gear.
High Efficiency Furnace + Central Air:
– The least green, most likely, but also perhaps the biggest bang for my buck.
– Cost difference doesn’t seem significantly less than geothermal (approx $5k, I believe, once tax credits are worked in).
Thanks in advance for all recommendations!
GBA Detail Library
A collection of one thousand construction details organized by climate and house part