A snow-covered two-story house at night during a snowstorm, with one illuminated upper window and a attached garage.

Furnace Installation in Westerly, RI

A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Washington County will get in touch.

Tell us about the job

It takes about a minute.

Step 1 of 3: Equipment
An unfinished basement containing a gas furnace with ductwork in the foreground and miscellaneous stored items along the far concrete wall.

Eight months of heat a year is a lot to ask of a furnace

Westerly homes run the furnace from October through May. That is eight months out of twelve, with winter nights averaging 24°F. A furnace here does not get much of a break, and the one you install needs to be sized and installed for that kind of run time, not just for a cold snap here and there.

A good number of homes in this area still heat with fuel oil, and whatever fuel yours uses, any new gas furnace built since November 2015 has to reach at least 80 percent AFUE by federal rule. That floor is already set before you choose a model. Winter storms and damaging wind are common enough here that power loss is part of the picture too. Statewide, about 12 percent of households lost power for a full day or more in 2024, which is worth keeping in mind when you decide how your new furnace should be installed and what it needs to run.

8 months
October through May, your furnace is on duty
24°F
the average winter night it heats against
80% AFUE
the federal minimum any new unit must meet
Isometric cutaway illustration of a small house showing a furnace unit connected to ductwork and a vertical flue pipe extending through the dark shingled roof, with sparse furniture in the rooms.
Your furnace works hardest from November through March.

NOAA nClimDiv, 1991–2020 normals

Rhode Island requires HVAC contractors to hold a state license.

The license comes from Rhode Island's Department of Labor and Training, and it belongs to the contractor, not to any one job. It does not get reissued for each furnace someone installs. It stays with the business as a standing record that the state keeps.

For this job, that license is what stands behind the person doing the work. Most cities and counties in Rhode Island also require a permit for a furnace replacement, with an inspection once the work is done. That permit and inspection come from the local building office, not the state.

Source: Rhode Island General Assembly

What size furnace does my house need?
The right size depends on your house, not a rule of thumb, so a contractor needs to run a load calculation before installing anything. That calculation looks at your square footage, your insulation, your windows, and how the house holds heat, then works out how much your furnace needs to put out on a night as cold as 24°F, which is an average winter low here. A furnace that's too big cycles on and off and wears out faster. One that's too small runs constantly and still can't keep up when it's cold. Skip anyone who sizes it off square footage alone.
How do I know it's time to replace my furnace?
Watch for repairs that keep coming back, a furnace that struggles to keep the house warm overnight, or one that's old enough that parts are getting hard to find. Homes here need heat from October through May, so a furnace that can't keep pace is a problem for most of the year, not just a few cold nights. Rising bills without any other cause are another sign the unit is losing efficiency. If a contractor is already coming out more than once a season, ask them straight whether repair still makes sense or if you're just paying to delay the same decision.
Is a high-efficiency furnace worth it?
It depends on how you heat now and how long you plan to stay in the house. Any new non-weatherized gas furnace sold today has to reach at least 80 percent AFUE, so even a standard model wastes less fuel than an older one. A high-efficiency furnace pushes that higher still, which matters more in a place where heat runs eight months a year than somewhere with a short winter. A lot of homes here still heat with fuel oil, so switching to gas and going high-efficiency is a bigger change than upgrading furnace to furnace. A contractor can walk through the actual numbers for your house and your fuel type.