Furnace vs Boiler in Aiken County, South Carolina
When a furnace makes sense
If your home already has ductwork, a furnace is the easier fit, and just under half of homes in this region heat this way. Winters here are mild, with nights averaging 36°F from December through February, and heat is only needed about five months of the year, so the system isn't working hard for long. A furnace also gives you a place to add central air later, since it can share the same ducts.
When a boiler makes sense
A boiler makes sense if your home is set up for radiators or in-floor pipes rather than ducts, or if you want the steadier, quieter heat that kind of system gives off. It runs about 5% cheaper here than a furnace, which adds up over years of use even in a mild climate. It's a less common choice in this area, so it fits best when your home was already built around it.
When a furnace makes sense
If your home already has ductwork, a furnace is the easier fit, and just under half of homes in this region heat this way. Winters here are mild, with nights averaging 36°F from December through February, and heat is only needed about five months of the year, so the system isn't working hard for long. A furnace also gives you a place to add central air later, since it can share the same ducts.
When a boiler makes sense
A boiler makes sense if your home is set up for radiators or in-floor pipes rather than ducts, or if you want the steadier, quieter heat that kind of system gives off. It runs about 5% cheaper here than a furnace, which adds up over years of use even in a mild climate. It's a less common choice in this area, so it fits best when your home was already built around it.
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
Boiler
- 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 Aiken County.
Just over half of homes in this region already heat with a furnace, and yours was likely built with the ductwork to match.
If your home already has radiators or in-floor pipes instead of ductwork, a boiler is still the better choice.
Find a contractor| Compared on | Furnace | Boiler |
|---|---|---|
| Cost to run here | Costs more to run | About 5% less to run |
| What it does | Heats only | Heats only |
| Homes in the South Atlantic states that heat with one | 48% | 2% |
| Handles a 36°F night | Yes | Yes |
Sources: U.S. Energy Information Administration, U.S. Department of Energy, NOAA
When a furnace makes sense
If your home already has ductwork, a furnace is the easier fit, and just under half of homes in this region heat this way. Winters here are mild, with nights averaging 36°F from December through February, and heat is only needed about five months of the year, so the system isn't working hard for long. A furnace also gives you a place to add central air later, since it can share the same ducts.
When a boiler makes sense
A boiler makes sense if your home is set up for radiators or in-floor pipes rather than ducts, or if you want the steadier, quieter heat that kind of system gives off. It runs about 5% cheaper here than a furnace, which adds up over years of use even in a mild climate. It's a less common choice in this area, so it fits best when your home was already built around it.
A Aiken County contractor will price both against your own house, your ductwork and your panel.
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