Furnace vs Boiler in Western Connecticut Planning Region, Connecticut
When a furnace makes sense
If your house already has ductwork, a furnace is the simpler path. It runs on natural gas, heats the air, and pushes it through the ducts you already have, and with winter nights averaging 22°F here, you want a system that brings the whole house up to temperature fast. The same ducts can carry air conditioning too, so you are not paying for a second set of runs later.
When a boiler makes sense
If your home heats through radiators or pipes in the floor, a boiler is built for that and there is no ductwork to add. It runs on natural gas and heats about 5% cheaper than a furnace at local rates, which adds up over eight months of heating a year. Radiant heat also holds steady through the coldest nights instead of cycling the air on and off.
When a furnace makes sense
If your house already has ductwork, a furnace is the simpler path. It runs on natural gas, heats the air, and pushes it through the ducts you already have, and with winter nights averaging 22°F here, you want a system that brings the whole house up to temperature fast. The same ducts can carry air conditioning too, so you are not paying for a second set of runs later.
When a boiler makes sense
If your home heats through radiators or pipes in the floor, a boiler is built for that and there is no ductwork to add. It runs on natural gas and heats about 5% cheaper than a furnace at local rates, which adds up over eight months of heating a year. Radiant heat also holds steady through the coldest nights instead of cycling the air on and off.
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 Western Connecticut Planning Region.
In New England, 54.8% 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 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 New England that heat with one | 54.8% | 26.2% |
| Handles a 22°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 runs on natural gas, heats the air, and pushes it through the ducts you already have, and with winter nights averaging 22°F here, you want a system that brings the whole house up to temperature fast. The same ducts can carry air conditioning too, so you are not paying for a second set of runs later.
When a boiler makes sense
If your home heats through radiators or pipes in the floor, a boiler is built for that and there is no ductwork to add. It runs on natural gas and heats about 5% cheaper than a furnace at local rates, which adds up over eight months of heating a year. Radiant heat also holds steady through the coldest nights instead of cycling the air on and off.
A Western Connecticut Planning Region contractor will price both against your own house, your ductwork and your panel.
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