Heat pump cost in Connecticut
A furnace plus AC is roughly $1,850 a year cheaper to run in Connecticut: $3,643 (heat pump) against $1,792 (furnace + AC) per year for a 2,000 sq ft house, using 27.97¢/kWh power and $1.63/therm gas.
Energy bills compared
| Heat pump heat, 7.5 / 9.5 HSPF2 | $3,455 / $2,728 |
| Heat pump cooling, 14.3 SEER2 | $188 |
| Furnace, 95% / 80% AFUE | $1,592 / $1,890 |
| AC at 13.4 SEER2 (North min) | $201 |
| Heat pump vs furnace + AC | $3,643 vs $1,792 |
Expect to pay roughly $1,850 a year more with the heat pump; it makes most sense if your AC needs replacing too.
27.97¢/kWh (EIA, July 2026 YTD); gas $1.63/therm (EIA 2025, $16.83/Mcf at 1,031 Btu/ft³). Energy only; estimates.
Winter performance
Here heating dominates, so winter efficiency decides the outcome. Jan's degree days imply a monthly mean near 28°F (rough approximation); standard heat pumps lose capacity in deep cold and lean on electric backup, so our HSPF2 figures are optimistic here and a cold-climate model is the safer pick. The numbers behind that: 5,849 heating and 607 cooling degree days a year (NOAA nClimDiv).
Size for the winter load and confirm cooling isn't far oversized, or keep a furnace for the coldest days (dual fuel).
Upfront price
Tier to price first in Connecticut: 18–19 SEER2 / 9–10 HSPF2, roughly $11,000–$18,000+ installed (national estimate). Across all efficiency levels, a 2,000 sq ft home typically runs $10,000–$20,000+. No state-specific price data exists in our sources.
Source: HomeGuide, “How much does a heat pump cost?” (2026).
Connecticut by month
| Month | HDD | CDD | Heat pump | Furnace + AC |
|---|---|---|---|---|
| Jan | 1144 | 0 | $676 | $311 |
| Feb | 977 | 0 | $577 | $266 |
| Mar | 853 | 0 | $504 | $232 |
| Apr | 506 | 0 | $299 | $138 |
| May | 221 | 14 | $135 | $65 |
| Jun | 28 | 95 | $46 | $39 |
| Jul | 2 | 247 | $78 | $82 |
| Aug | 7 | 199 | $66 | $68 |
| Sep | 79 | 50 | $62 | $38 |
| Oct | 381 | 1 | $226 | $104 |
| Nov | 674 | 0 | $398 | $183 |
| Dec | 976 | 0 | $576 | $266 |
Connecticut heat pump FAQ
Heat pump price in Connecticut?
$10,000–$20,000+ installed for a 2,000 sq ft home, per HomeGuide's national figures.
When does a heat pump win in Connecticut?
About 12.9¢/kWh for a 7.5 HSPF2 heat pump against a 95% furnace at $1.63/therm; prices would need to fall about 15.1¢ from Connecticut's 27.97¢ average. A 9.5 HSPF2 unit would heat for $2,728 a year.
Does the 25C credit still apply?
No. Per the IRS, the Energy Efficient Home Improvement Credit (25C) covered improvements made through December 31, 2025, at 30% up to $2,000 a year for heat pumps, with a QMID requirement for 2025 property. IRS: Energy Efficient Home Improvement Credit.
Will a heat pump keep up in a Connecticut winter?
Standard units lose capacity in deep cold; with 5,849 heating degree days, choose a cold-climate model or keep gas backup.
Regional comparison
| State | Heat pump | Furnace + AC | Break-even |
|---|---|---|---|
| Massachusetts | $4,076 | $2,669 | 19.2¢ |
| Rhode Island | $3,737 | $2,214 | 16.6¢ |
| Connecticut | $3,643 | $1,792 | 12.9¢ |
| New York | $3,925 | $1,919 | 13.4¢ |
Next: AC running cost in Connecticut · heat pump vs gas furnace calculator · heat pump cost by state
Sources: EIA electricity and natural gas prices, NOAA nClimDiv, U.S. DOE regional standards. Model: 2,000 sq ft, average insulation; methodology.