Furnace vs Boiler in DeKalb County, Georgia
When a furnace makes sense
If your house already has ductwork, a furnace is the natural fit. Just under half of homes in this region heat with one, and with winter nights only dropping to around 35°F, a furnace keeps up without strain. It also shares the same ducts as central air, so summer cooling is covered too.
When a boiler makes sense
A boiler suits a home with radiators or in-floor pipes already in place, rather than ductwork. It runs about 5% cheaper to heat with here, though with heat only needed around six months of the year, that saving adds up slowly. Only 2% of homes in this region heat with one, but it is a sound choice if your home is already set up for it.
When a furnace makes sense
If your house already has ductwork, a furnace is the natural fit. Just under half of homes in this region heat with one, and with winter nights only dropping to around 35°F, a furnace keeps up without strain. It also shares the same ducts as central air, so summer cooling is covered too.
When a boiler makes sense
A boiler suits a home with radiators or in-floor pipes already in place, rather than ductwork. It runs about 5% cheaper to heat with here, though with heat only needed around six months of the year, that saving adds up slowly. Only 2% of homes in this region heat with one, but it is a sound choice if your home is already set up for 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 DeKalb County.
Just under 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 heat instead of ductwork, a boiler is still the better fit.
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 35°F night | Yes | Yes |
Sources: U.S. Energy Information Administration, U.S. Department of Energy, NOAA
When a furnace makes sense
If your house already has ductwork, a furnace is the natural fit. Just under half of homes in this region heat with one, and with winter nights only dropping to around 35°F, a furnace keeps up without strain. It also shares the same ducts as central air, so summer cooling is covered too.
When a boiler makes sense
A boiler suits a home with radiators or in-floor pipes already in place, rather than ductwork. It runs about 5% cheaper to heat with here, though with heat only needed around six months of the year, that saving adds up slowly. Only 2% of homes in this region heat with one, but it is a sound choice if your home is already set up for it.
A DeKalb County contractor will price both against your own house, your ductwork and your panel.
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