Heat pump vs Furnace in Jefferson County, Kentucky
When a heat pump makes sense
A heat pump makes sense if you want cooling and heating from one system and you're set on all-electric. Just make sure it's a cold-climate model. Winter nights here average 27°F, and a standard heat pump loses heating power at that temperature, right when you need it most. You'll also want to check the electric rate against gas, since gas heat runs at least 5% cheaper here.
When a furnace makes sense
A furnace suits most homes here, and 59% of homes already heat this way. It runs on natural gas and costs at least 5% less to run than a heat pump at Kentucky prices, which adds up over the roughly 7 months a year you'll need heat. The tradeoff is it only heats, so you'd need a separate system for cooling.
When a heat pump makes sense
A heat pump makes sense if you want cooling and heating from one system and you're set on all-electric. Just make sure it's a cold-climate model. Winter nights here average 27°F, and a standard heat pump loses heating power at that temperature, right when you need it most. You'll also want to check the electric rate against gas, since gas heat runs at least 5% cheaper here.
When a furnace makes sense
A furnace suits most homes here, and 59% of homes already heat this way. It runs on natural gas and costs at least 5% less to run than a heat pump at Kentucky prices, which adds up over the roughly 7 months a year you'll need heat. The tradeoff is it only heats, so you'd need a separate system for cooling.
Heat pump
- Runs on
- Electricity
- What it does
- Heats and cools
- Tax credit
- No federal tax credit since the end of 2025
Sources: U.S. Department of Energy · Internal Revenue Code
Furnace
- Runs on
- Natural gas
- What it does
- Heats only
- Tax credit
- No federal tax credit since the end of 2025
Sources: U.S. Department of Energy · Internal Revenue Code
Furnace wins in Jefferson County.
Almost 6 in 10 homes in Jefferson County already heat with gas, and running a furnace here costs less than a heat pump.
If your home has no ductwork and you're not adding any, a heat pump paired with mini-splits can heat and cool without it, something a furnace alone can't do.
Find a contractor| Compared on | Heat pump | Furnace |
|---|---|---|
| Cost to run here | Costs more to run | At least 5% less to run |
| What it does | Heats and cools | Heats only |
| Homes in the inland South that heat with one | 31.8% | 53.4% |
| Handles a 27°F night | Standard models lose heating power in the cold; cold-climate models are built for it | Yes |
Sources: U.S. Energy Information Administration, U.S. Department of Energy, NOAA
When a heat pump makes sense
A heat pump makes sense if you want cooling and heating from one system and you're set on all-electric. Just make sure it's a cold-climate model. Winter nights here average 27°F, and a standard heat pump loses heating power at that temperature, right when you need it most. You'll also want to check the electric rate against gas, since gas heat runs at least 5% cheaper here.
When a furnace makes sense
A furnace suits most homes here, and 59% of homes already heat this way. It runs on natural gas and costs at least 5% less to run than a heat pump at Kentucky prices, which adds up over the roughly 7 months a year you'll need heat. The tradeoff is it only heats, so you'd need a separate system for cooling.
A Jefferson County contractor will price both against your own house, your ductwork and your panel.
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