An unfinished basement featuring exposed ceiling joists, a metal HVAC unit with round ductwork, a hanging light bulb, and scattered boxes and debris along the left wall.

Furnace vs Boiler in Chittenden County, Vermont

When a furnace makes sense

If your house already has ductwork, a furnace is the simpler choice. It ties into what is already there, and it can run central air through the same ducts if you ever add cooling. With nine months a year of heating ahead of you, a system that matches what your home is already built for is worth more than a small edge in running cost.

When a boiler makes sense

If your home heats through radiators or in-floor pipes and has no ductwork, a boiler is the natural fit. It runs about 5% cheaper here than a furnace, and that gap matters over nine months of heating and nights that average 12°F. Installing ducts just to run a furnace would cost more than staying with the heat distribution your home already has.

When a furnace makes sense

If your house already has ductwork, a furnace is the simpler choice. It ties into what is already there, and it can run central air through the same ducts if you ever add cooling. With nine months a year of heating ahead of you, a system that matches what your home is already built for is worth more than a small edge in running cost.

When a boiler makes sense

If your home heats through radiators or in-floor pipes and has no ductwork, a boiler is the natural fit. It runs about 5% cheaper here than a furnace, and that gap matters over nine months of heating and nights that average 12°F. Installing ducts just to run a furnace would cost more than staying with the heat distribution your home already has.

An unfinished basement interior showing a gray furnace unit beneath a bare incandescent bulb, surrounded by exposed joists, concrete walls, cardboard boxes, and utility pipes.

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 gray boiler with a pressure gauge and copper pipes stands in an unfinished basement with stone walls and exposed ceiling joists.

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 Chittenden County.

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 Vermont prices
12°Faverage winter low
55%of homes here heat with gas

If your home already has radiators or in-floor pipes instead of ductwork, the boiler is still the better choice.

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 12°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 choice. It ties into what is already there, and it can run central air through the same ducts if you ever add cooling. With nine months a year of heating ahead of you, a system that matches what your home is already built for is worth more than a small edge in running cost.

When a boiler makes sense

If your home heats through radiators or in-floor pipes and has no ductwork, a boiler is the natural fit. It runs about 5% cheaper here than a furnace, and that gap matters over nine months of heating and nights that average 12°F. Installing ducts just to run a furnace would cost more than staying with the heat distribution your home already has.

A Chittenden County contractor will price both against your own house, your ductwork and your panel.

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