An unfinished basement featuring concrete block walls, exposed floor joists, a bare concrete floor, and a forced-air furnace with a large metal exhaust duct in the corner.

Furnace vs Boiler in Hillsborough County, New Hampshire

When a furnace makes sense

If your house already has ductwork, a furnace is the simpler choice, and just over half the homes in this region are set up that way. It heats with warm air pushed through the ducts, so the same system can carry air conditioning later if you want it. Eight months of heating a year is a real workload here, and a furnace handles it without any other equipment tied to it.

When a boiler makes sense

If your home already has radiators or in-floor pipes, a boiler is the natural fit, since it heats through that system rather than ducts. It runs about 5% cheaper than a furnace at local gas prices, which adds up over eight months of heating and winter nights near 16°F. It will not do anything for cooling, so you would need a separate way to handle summer.

When a furnace makes sense

If your house already has ductwork, a furnace is the simpler choice, and just over half the homes in this region are set up that way. It heats with warm air pushed through the ducts, so the same system can carry air conditioning later if you want it. Eight months of heating a year is a real workload here, and a furnace handles it without any other equipment tied to it.

When a boiler makes sense

If your home already has radiators or in-floor pipes, a boiler is the natural fit, since it heats through that system rather than ducts. It runs about 5% cheaper than a furnace at local gas prices, which adds up over eight months of heating and winter nights near 16°F. It will not do anything for cooling, so you would need a separate way to handle summer.

An unfinished concrete basement containing a gas furnace with sheet-metal ductwork, utility shelving, and exposed overhead joists.

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 copper and black piping mounted against a concrete block wall in an unfinished basement.

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 Hillsborough 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 New Hampshire prices
16°Faverage winter low
38%of homes here heat with gas

If your home already has radiators or in-floor pipes instead of ductwork, a 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 16°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, and just over half the homes in this region are set up that way. It heats with warm air pushed through the ducts, so the same system can carry air conditioning later if you want it. Eight months of heating a year is a real workload here, and a furnace handles it without any other equipment tied to it.

When a boiler makes sense

If your home already has radiators or in-floor pipes, a boiler is the natural fit, since it heats through that system rather than ducts. It runs about 5% cheaper than a furnace at local gas prices, which adds up over eight months of heating and winter nights near 16°F. It will not do anything for cooling, so you would need a separate way to handle summer.

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

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