Furnace vs Boiler in Waukesha County, Wisconsin
When a furnace makes sense
If your house already has ductwork, a furnace is the straightforward choice. Across this region, most homes are set up this way, and that same ductwork can carry air conditioning later if you want it. With about eight months of heating a year and winter nights averaging 16°F, a furnace pushes heat fast through the house.
When a boiler makes sense
If your home heats through radiators or in-floor pipes rather than ducts, a boiler is the right fit, since it works with that water-based heat and does not need ductwork you don't have. It also runs about 5% cheaper than a furnace here, which adds up over eight months of heating. It won't provide air conditioning, so that part of your comfort has to come from somewhere else.
When a furnace makes sense
If your house already has ductwork, a furnace is the straightforward choice. Across this region, most homes are set up this way, and that same ductwork can carry air conditioning later if you want it. With about eight months of heating a year and winter nights averaging 16°F, a furnace pushes heat fast through the house.
When a boiler makes sense
If your home heats through radiators or in-floor pipes rather than ducts, a boiler is the right fit, since it works with that water-based heat and does not need ductwork you don't have. It also runs about 5% cheaper than a furnace here, which adds up over eight months of heating. It won't provide air conditioning, so that part of your comfort has to come from somewhere else.
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 Waukesha County.
In the Great Lakes states, 78.8% of homes heat with a furnace, so most already have the ductwork it needs.
If your home already has radiators or in-floor pipes instead of ductwork, a boiler still makes more sense than adding ducts for a furnace.
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 Great Lakes states that heat with one | 78.8% | 7.7% |
| Handles a 16°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. Across this region, most homes are set up this way, and that same ductwork can carry air conditioning later if you want it. With about eight months of heating a year and winter nights averaging 16°F, a furnace pushes heat fast through the house.
When a boiler makes sense
If your home heats through radiators or in-floor pipes rather than ducts, a boiler is the right fit, since it works with that water-based heat and does not need ductwork you don't have. It also runs about 5% cheaper than a furnace here, which adds up over eight months of heating. It won't provide air conditioning, so that part of your comfort has to come from somewhere else.
A Waukesha County contractor will price both against your own house, your ductwork and your panel.
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