Furnace vs Boiler in Prince William County, Virginia
When a furnace makes sense
A furnace is the right call if your house already has ductwork, since that is what carries the heat room to room. It also keeps central air simple to add on the same ducts later. With 7 months of heating a year and winter nights averaging 28°F, a furnace paired with ducts already in place is the straightforward choice.
When a boiler makes sense
A boiler makes sense if your home already has radiators or in-floor pipes rather than ducts, since that is how it delivers heat. It runs about 5% cheaper than a furnace here, which matters over 7 months of cold nights. It will not heat air for central air conditioning, so cooling would need a separate system.
When a furnace makes sense
A furnace is the right call if your house already has ductwork, since that is what carries the heat room to room. It also keeps central air simple to add on the same ducts later. With 7 months of heating a year and winter nights averaging 28°F, a furnace paired with ducts already in place is the straightforward choice.
When a boiler makes sense
A boiler makes sense if your home already has radiators or in-floor pipes rather than ducts, since that is how it delivers heat. It runs about 5% cheaper than a furnace here, which matters over 7 months of cold nights. It will not heat air for central air conditioning, so cooling would need a separate system.
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 Prince William County.
Homes built around 1995 like most here already have ductwork in place, and just under half the region heats with a furnace for that reason.
If your home already has radiators or in-floor pipes and no 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 28°F night | Yes | Yes |
Sources: U.S. Energy Information Administration, U.S. Department of Energy, NOAA
When a furnace makes sense
A furnace is the right call if your house already has ductwork, since that is what carries the heat room to room. It also keeps central air simple to add on the same ducts later. With 7 months of heating a year and winter nights averaging 28°F, a furnace paired with ducts already in place is the straightforward choice.
When a boiler makes sense
A boiler makes sense if your home already has radiators or in-floor pipes rather than ducts, since that is how it delivers heat. It runs about 5% cheaper than a furnace here, which matters over 7 months of cold nights. It will not heat air for central air conditioning, so cooling would need a separate system.
A Prince William County contractor will price both against your own house, your ductwork and your panel.
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