Furnace Installation in Norwich, CT
A new furnace here will run from October through May every year. Tell us about the house, and a licensed contractor who covers Norwich will get in touch.
Tell us about the job
It takes about a minute.
Norwich asks a lot of a furnace
Furnaces here run October through May, eight months of the year. On winter nights that average 24°F, the burner is cycling on and off for most of the day to keep up.
Any new non-weatherized gas furnace has to reach at least 80 percent AFUE, so that efficiency floor is built into whatever you install. Almost half the homes in the area heat with fuel oil, so if you're switching to gas, a licensed contractor can walk you through what that involves. In 2024, 20% of Connecticut households went at least 24 hours without power, which is worth asking about when you're choosing between furnace types.
- 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
NOAA 1991–2020 monthly normals
Connecticut requires HVAC contractors to hold a state license.
The Department of Consumer Protection issues the license and keeps the record of who holds one. It's tied to the contractor, not to any single job, so the same license covers this furnace install and whatever other HVAC work that contractor takes on.
For a furnace replacement in Norwich, the local building office also has a say. Most cities and counties require a permit for this kind of job and an inspection once it's done, which checks the gas connection and venting separately from anything the state license covers.
Sources: Connecticut General Assembly · Connecticut Department of Consumer Protection
- What size furnace does my house need?
- It depends on your home's square footage, how well it's insulated, your window count, and your ceiling height, so there's no single number that fits every house. A furnace that's too big will cycle on and off too fast and never run long enough to heat evenly. One that's too small will run constantly and still leave you cold on a 24°F night. A contractor works this out with a load calculation, not a guess based on your old unit's size.
- How do I know it's time to replace my furnace?
- An aging furnace that needs more repairs each year, no longer heats rooms evenly, or cycles on and off more than it used to is telling you it's on its way out. A jump in your gas or oil bill with no other explanation is another sign, since a furnace losing efficiency has to run longer to do the same job. With heat needed here from October through May, a furnace that fails mid-winter leaves you without heat on nights averaging 24°F. If yours is showing more than one of these signs, it's worth having a contractor look at it before it fails rather than after.
- Is a high-efficiency furnace worth it?
- Any new non-weatherized gas furnace sold today has to reach at least 80 percent AFUE by law, so the question is whether it makes sense to go higher than that minimum. A furnace that wastes less fuel matters more here, with heat running 8 months of the year. Close to half the homes in this area heat with fuel oil rather than gas, and efficiency options work differently by fuel type, so ask a contractor which models make sense for your furnace's fuel.