Heat pump vs Furnace in Lexington County, South Carolina
When a heat pump makes sense
If you're heating with electricity already, a heat pump is the natural fit. Winters here are mild, nights averaging 36°F from December through February, and heat pumps do their best work in that range. You'll get cooling in summer from the same unit, and running cost comes in around 5% below gas at South Carolina's prices.
When a furnace makes sense
If your home already has a gas line and you'd rather not touch the heating setup, a furnace still gets the job done. It only heats, so you'd need separate air conditioning, and at 5% more than a heat pump to run here, the case for switching is thin. Where it makes sense is when gas is already in place and you want to keep things as they are.
When a heat pump makes sense
If you're heating with electricity already, a heat pump is the natural fit. Winters here are mild, nights averaging 36°F from December through February, and heat pumps do their best work in that range. You'll get cooling in summer from the same unit, and running cost comes in around 5% below gas at South Carolina's prices.
When a furnace makes sense
If your home already has a gas line and you'd rather not touch the heating setup, a furnace still gets the job done. It only heats, so you'd need separate air conditioning, and at 5% more than a heat pump to run here, the case for switching is thin. Where it makes sense is when gas is already in place and you want to keep things as they are.
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
Heat pump wins in Lexington County.
Winter nights only dip to about 36°F here and most homes already heat with electricity, so a heat pump covers you without needing gas run to the house.
If your home already has a gas line and you would rather keep one utility bill for heating out of the electric one, a furnace still makes sense.
Find a contractor| Compared on | Heat pump | Furnace |
|---|---|---|
| Cost to run here | About 5% less to run | Costs more to run |
| What it does | Heats and cools | Heats only |
| Homes in the South Atlantic states that heat with one | 30.1% | 48% |
| Handles a 36°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
If you're heating with electricity already, a heat pump is the natural fit. Winters here are mild, nights averaging 36°F from December through February, and heat pumps do their best work in that range. You'll get cooling in summer from the same unit, and running cost comes in around 5% below gas at South Carolina's prices.
When a furnace makes sense
If your home already has a gas line and you'd rather not touch the heating setup, a furnace still gets the job done. It only heats, so you'd need separate air conditioning, and at 5% more than a heat pump to run here, the case for switching is thin. Where it makes sense is when gas is already in place and you want to keep things as they are.
A Lexington County contractor will price both against your own house, your ductwork and your panel.
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