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Sizing a heat pump for this area means deciding how much the system can deliver when outdoor temperatures bottom out in January and February, because a heat pump's output drops as the air gets colder. Homes in Lower Connecticut River Valley Planning Region, CT run heat about eight months a year, from October through May. Through those deep-winter weeks, a unit sized only for mild shoulder months will fall short of the house's load, and the auxiliary resistance strips will carry the gap. A contractor working a load calculation here has to establish where that crossover point lands and what the backup system needs to handle, or the install quotes a system that performs on paper and struggles in practice.

Ductwork designed for a furnace and ductwork that will carry a heat pump are not the same thing, and in a region where a large share of the housing predates the equipment now running in it, that gap is where installation planning actually lives. Half the homes in Lower Connecticut River Valley Planning Region, Connecticut were built in 1972 or earlier (2020-2024 ACS 5-year). A contractor putting in a heat pump has to assess what those ducts move, how they are routed, and whether the returns are adequate before the equipment choice means much. The electrical service gets the same look: panels in houses of this vintage were not sized around the draw of a modern heat pump. Both have to be measured, not assumed.
What Gets Installed With a New Heat Pump

The outdoor unit sits on a pad beside the house and holds the compressor and the heat exchanger coil. Inside, an air handler mounts in a utility space, a closet, or an attic and moves conditioned air through the home. These two units are what a contractor brings in and sets into place.
A refrigerant line set runs between the outdoor unit and the air handler, carrying refrigerant between the two. A thermostat mounts on an interior wall and gives the homeowner control over the system. A condensate drain line runs from the air handler to an approved discharge point, carrying away the moisture the indoor coil pulls from the air.
The drawing shows a typical layout, and a licensed contractor determines exactly how each piece fits the conditions of this particular house.
Find a contractor in Lower Connecticut River Valley Planning RegionLower Connecticut River Valley, by the numbers
Half the homes in Lower Connecticut River Valley Planning Region, Connecticut were built in 1972 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesLower Connecticut River Valley Planning Region, Connecticut holds 82,963 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 75.8% of the occupied homes in Lower Connecticut River Valley Planning Region, Connecticut (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesHeat Pump Installation Rules for Lower Connecticut River Valley Planning Region, Connecticut1 codes, standards, and licensing rules
Licensing and Legal Requirements in Lower Connecticut River Valley Planning Region, Connecticut
Connecticut requires a state licence to perform, or to advertise, heating, piping and cooling work: no person may practise an occupation this chapter covers without first obtaining one.