
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31. · U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
A furnace that starts and stops across most of the year puts its wear on the ignition system and the heat exchanger, not on some single hard freeze. Homes in Connecticut run heat about eight months a year, from October through May. With idle stretches this short, a weak igniter or a cracked exchanger tends to show itself early rather than waiting for the coldest week. A mild spell in early fall or late spring can hide a fault that will not stay hidden once the burner is cycling again on the next cold night.
A new furnace or heat pump does not go into an empty house. It connects to ducts already run and a panel already wired, and both have to be looked at rather than trusted. Half the homes in Connecticut were built in 1967 or earlier (2020-2024 ACS 5-year). That figure covers the whole range of what a contractor might open up, some of it matched to modern equipment without much fuss, some of it needing a return added or a circuit upgraded before anything new can run. There is no way to know which one a given house is until someone checks the vents, measures airflow, and confirms what the panel can actually carry.
How does your Connecticut county compare on severe weather?
Outdoor HVAC equipment is built to sit outside year round, but wind, hail and heavy rain all reach a condenser directly, and repeated exposure wears on its cabinet, coil and fan over time. If your county ranks high on this list, have a contractor check where the outdoor unit sits, how well it is anchored, and the condition of the unit itself.
Connecticut requires HVAC contractors to hold a state license.
Licenses are issued by the Department of Consumer Protection.
Look up a contractor's license on the Department of Consumer Protection's website.Sources: Connecticut General Assembly · Connecticut Department of Consumer Protection