Furnace vs Boiler in San Bernardino County, California
When a furnace makes sense
If your house already has ductwork, a furnace is the simpler path. It uses that ductwork to heat the whole house, and with winter nights here averaging 39°F, a gas furnace can cycle on and off without much strain. Just over half the homes in this region already have ducts in place, so you are not paying to add anything new just to move the heat around.
When a boiler makes sense
If your home heats through radiators or pipes in the floor rather than ducts, a boiler makes sense to keep, since a furnace would have nowhere to send its air. Boiler heat also runs about 5% cheaper here at current gas prices, which adds up over five months of heating a year. It is a good fit for a house built around that kind of heat, not one you would add ductwork for.
When a furnace makes sense
If your house already has ductwork, a furnace is the simpler path. It uses that ductwork to heat the whole house, and with winter nights here averaging 39°F, a gas furnace can cycle on and off without much strain. Just over half the homes in this region already have ducts in place, so you are not paying to add anything new just to move the heat around.
When a boiler makes sense
If your home heats through radiators or pipes in the floor rather than ducts, a boiler makes sense to keep, since a furnace would have nowhere to send its air. Boiler heat also runs about 5% cheaper here at current gas prices, which adds up over five months of heating a year. It is a good fit for a house built around that kind of heat, not one you would add ductwork for.
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 San Bernardino County.
In the Pacific states, 56.9% of homes heat with a furnace, so just over half already have the ductwork it needs.
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 Pacific states that heat with one | 56.9% | 1.6% |
| Handles a 39°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 simpler path. It uses that ductwork to heat the whole house, and with winter nights here averaging 39°F, a gas furnace can cycle on and off without much strain. Just over half the homes in this region already have ducts in place, so you are not paying to add anything new just to move the heat around.
When a boiler makes sense
If your home heats through radiators or pipes in the floor rather than ducts, a boiler makes sense to keep, since a furnace would have nowhere to send its air. Boiler heat also runs about 5% cheaper here at current gas prices, which adds up over five months of heating a year. It is a good fit for a house built around that kind of heat, not one you would add ductwork for.
A San Bernardino County contractor will price both against your own house, your ductwork and your panel.
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