Furnace vs Boiler in Pennington County, South Dakota
When a furnace makes sense
If your house already has ductwork, a furnace is the straightforward choice. Most homes in this region were built with ducts already in place, so a furnace can use what your house already has. With nine months of heating and nights averaging 13°F, you want a system that can push heat fast, and a furnace does that well through the ducts you already have.
When a boiler makes sense
A boiler makes sense if your house heats through radiators or in-floor pipes rather than ducts. It runs about 5% cheaper here than a furnace, which adds up over nine months of heating season. If your home was never set up for ductwork, a boiler works with what's already there instead of asking you to add ducts for a furnace.
When a furnace makes sense
If your house already has ductwork, a furnace is the straightforward choice. Most homes in this region were built with ducts already in place, so a furnace can use what your house already has. With nine months of heating and nights averaging 13°F, you want a system that can push heat fast, and a furnace does that well through the ducts you already have.
When a boiler makes sense
A boiler makes sense if your house heats through radiators or in-floor pipes rather than ducts. It runs about 5% cheaper here than a furnace, which adds up over nine months of heating season. If your home was never set up for ductwork, a boiler works with what's already there instead of asking you to add ducts for a furnace.
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 Pennington County.
In the Plains states, 77.6% of homes heat with a furnace, so most already have the ductwork it needs.
If your home already has radiators or in-floor heating 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 Plains states that heat with one | 77.6% | 6.5% |
| Handles a 13°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 straightforward choice. Most homes in this region were built with ducts already in place, so a furnace can use what your house already has. With nine months of heating and nights averaging 13°F, you want a system that can push heat fast, and a furnace does that well through the ducts you already have.
When a boiler makes sense
A boiler makes sense if your house heats through radiators or in-floor pipes rather than ducts. It runs about 5% cheaper here than a furnace, which adds up over nine months of heating season. If your home was never set up for ductwork, a boiler works with what's already there instead of asking you to add ducts for a furnace.
A Pennington County contractor will price both against your own house, your ductwork and your panel.
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