An unfinished basement containing a gray HVAC furnace with ductwork, exposed wooden joists, a concrete floor, and miscellaneous clutter in one corner.

Furnace vs Boiler in Greater Bridgeport Planning Region, Connecticut

When a furnace makes sense

If your house already has ductwork, a furnace is the simpler path, since that ductwork can carry the heated air without new pipes or radiators to install. It runs on natural gas and heats only, same as the boiler, so the choice comes down to how the heat moves through your house. With about 8 months of heating a year here, that existing ductwork is worth using rather than replacing.

When a boiler makes sense

If your house heats through radiators or in-floor pipes rather than ducts, a boiler is the natural fit, since that is how it delivers heat. It costs about 5% less to run than a furnace at Connecticut prices, which adds up over roughly 8 months of heating a year with winter nights averaging 26°F. Choose it if your home is already set up this way, not as a reason to tear out ductwork that works.

When a furnace makes sense

If your house already has ductwork, a furnace is the simpler path, since that ductwork can carry the heated air without new pipes or radiators to install. It runs on natural gas and heats only, same as the boiler, so the choice comes down to how the heat moves through your house. With about 8 months of heating a year here, that existing ductwork is worth using rather than replacing.

When a boiler makes sense

If your house heats through radiators or in-floor pipes rather than ducts, a boiler is the natural fit, since that is how it delivers heat. It costs about 5% less to run than a furnace at Connecticut prices, which adds up over roughly 8 months of heating a year with winter nights averaging 26°F. Choose it if your home is already set up this way, not as a reason to tear out ductwork that works.

A gray forced-air furnace with sheet-metal ductwork stands in an unfinished basement with exposed wooden joists, concrete walls, and a hanging incandescent bulb.

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

A basement mechanical room with a gray boiler connected to copper and iron pipes, a pressure gauge, and a water heater visible in the background.

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 Greater Bridgeport Planning Region.

In New England, 54.8% of homes heat with a furnace, so just over half already have the ductwork it needs.

About 5% lessto heat with a boiler than with a furnace, at Connecticut prices
26°Faverage winter low
57%of homes here heat with gas

If your home already heats through radiators or in-floor pipes, staying with a boiler still makes more sense than adding ductwork for a furnace.

Find a contractor
Compared onFurnaceBoiler
Cost to run hereCosts more to runAbout 5% less to run
What it doesHeats onlyHeats only
Homes in New England that heat with one54.8%26.2%
Handles a 26°F nightYesYes

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, since that ductwork can carry the heated air without new pipes or radiators to install. It runs on natural gas and heats only, same as the boiler, so the choice comes down to how the heat moves through your house. With about 8 months of heating a year here, that existing ductwork is worth using rather than replacing.

When a boiler makes sense

If your house heats through radiators or in-floor pipes rather than ducts, a boiler is the natural fit, since that is how it delivers heat. It costs about 5% less to run than a furnace at Connecticut prices, which adds up over roughly 8 months of heating a year with winter nights averaging 26°F. Choose it if your home is already set up this way, not as a reason to tear out ductwork that works.

A Greater Bridgeport Planning Region contractor will price both against your own house, your ductwork and your panel.

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