Heat Pump Installation in Dunlap

Serving Dunlap and every community across Sequatchie County.

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Step 1 of 3: Equipment
A large tree leaning over and resting against the shingled roof of a single-story brick house with three windows and black shutters, under an overcast grey sky with rain streaks.

A contractor sizing a heat pump in Sequatchie County starts from what this area actually demands, and the weather record is part of that picture. 56 severe weather events were recorded in Sequatchie County, Tennessee between 2015 and 2024. At that rate, severe weather is real but not relentless, which means the stress a system accumulates here comes mainly from years of daily cycling, not from repeated weather punishment. A contractor who quotes a new install accounts for that: equipment selection and the quality of the refrigerant lines, electrical connections, and airflow balance matter more here than designing around storm exposure. A poorly sized or sloppily installed system will underperform regardless of how many severe events the county sees in a given year.

NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.
Interior of a garage with concrete block walls, a closed sectional overhead door, exposed wood joists, and large insulated round ducts running along the ceiling, with a step ladder and a filled sack on the floor.

Ductwork laid in for an older system carries assumptions about airflow, return sizing, and trunk layout that a modern heat pump does not share. Half the homes in Sequatchie County, Tennessee were built in 1993 or earlier (2020-2024 ACS 5-year). A contractor installing a heat pump in this county opens the mechanical room to find out whether what is already in the walls can move the right volume of air in both directions, and many runs require sealing, resizing, or rerouting before the new unit performs as it should. The electrical panel gets the same look, since the load a heat pump draws is a different calculation than what the original service was sized for.

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates

What Gets Installed With a New Heat Pump

Isometric grayscale illustration of a cutaway two-story house showing interior ductwork, an indoor air handler unit, and an outdoor condenser unit on a pad beside the building.

The outdoor unit is the piece most homeowners see first, a cabinet that sits on a pad beside the house and holds the compressor and one set of coils. Inside, the air handler mounts in a closet, attic, or utility space and holds the second set of coils along with the blower that moves conditioned air through the home.

A refrigerant line set runs between the two units, connecting them through a small penetration in the wall. A thermostat goes on an interior wall where the homeowner controls the system, and a condensate drain line carries moisture from the air handler to a nearby drain.

The drawing shows a typical layout, and a licensed contractor determines exactly how each piece fits into your specific home.

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Sequatchie County, by the numbers

56

56 severe weather events were recorded in Sequatchie County, Tennessee between 2015 and 2024.

NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.
1993

Half the homes in Sequatchie County, Tennessee were built in 1993 or earlier (2020-2024 ACS 5-year).

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
6,992

Sequatchie County, Tennessee holds 6,992 housing units (2020-2024 ACS 5-year).

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
78.0%

Owners occupy 78.0% of the occupied homes in Sequatchie County, Tennessee (2020-2024 ACS 5-year).

U.S. Census Bureau, 2020-2024 American Community Survey 5-Year Estimates
Rules and Standards Behind Heat Pump Installation in Sequatchie County, Tennessee1 sourced rules and standards

Licensing Rules for Sequatchie County, Tennessee

Tennessee licenses contractors by classification, and HVAC, refrigeration and gas piping is one of them — a sub-classification of mechanical contracting on the licence the Board for Licensing Contractors issues.

Tennessee Secretary of StateTenn. Comp. R. & Regs. ch. 0680-1 (Tennessee Secretary of State)Verified 2026-09-13

Severe Weather Events in Sequatchie County

Weather in this part of Tennessee puts real demands on heating and cooling equipment, and those demands shape what a heat pump here needs to handle year after year. A system sized and installed for local conditions will hold up differently than one that was not.

Severe weather events by county — Sequatchie County
100
2015201620172018201920202021202220232024
10

56 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.