Heat pump cost in New Jersey
Heat pump: about $2,846 a year. Furnace plus AC: about $1,423. With gas at $1.37/therm, New Jersey homes save about $1,423 a year by keeping the furnace, based on state-average EIA prices for a 2,000 sq ft home.
Sizing for this climate
With 5,168 heating degree days, New Jersey ranks 26th for heating need; cooling adds 859 degree days (NOAA). So heating dominates, so winter efficiency decides the outcome. Jan's degree days imply a monthly mean near 31°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.
Size for the winter load and confirm cooling isn't far oversized, or keep a furnace for the coldest days (dual fuel).
Annual cost to run
| Heat pump heat, 7.5 / 9.5 HSPF2 | $2,617 / $2,066 |
| Heat pump cooling, 14.3 SEER2 | $228 |
| Furnace, 95% / 80% AFUE | $1,180 / $1,401 |
| AC at 13.4 SEER2 (North min) | $244 |
| Heat pump vs furnace + AC | $2,846 vs $1,423 |
At $1,423 a year extra, the heat pump needs a lower install price or comfort benefits to justify it.
23.98¢/kWh (EIA, July 2026 YTD); gas $1.37/therm (EIA 2025, $14.21/Mcf at 1,038 Btu/ft³). Energy only; estimates.
Across the border
| State | Heat pump | Furnace + AC | Break-even |
|---|---|---|---|
| Delaware | $1,917 | $1,380 | 12.2¢ |
| Pennsylvania | $2,698 | $1,556 | 11.5¢ |
| New Jersey | $2,846 | $1,423 | 10.8¢ |
| New York | $3,925 | $1,919 | 13.4¢ |
Install budget
Budget estimate (national, not New Jersey-specific): $10,000–$20,000+ for a 2,000 sq ft home. For a heating climate like New Jersey's, the 18–19 SEER2 / 9–10 HSPF2 class at $11,000–$18,000+ is the sensible starting point.
Source: HomeGuide, “How much does a heat pump cost?” (2026).
Cost per month
| Month | HDD | CDD | Heat pump | Furnace + AC |
|---|---|---|---|---|
| Jan | 1051 | 0 | $532 | $240 |
| Feb | 888 | 0 | $450 | $203 |
| Mar | 759 | 0 | $385 | $173 |
| Apr | 418 | 0 | $211 | $95 |
| May | 162 | 34 | $91 | $47 |
| Jun | 10 | 157 | $47 | $47 |
| Jul | 1 | 311 | $83 | $88 |
| Aug | 2 | 257 | $70 | $73 |
| Sep | 48 | 92 | $49 | $37 |
| Oct | 321 | 7 | $164 | $75 |
| Nov | 610 | 0 | $309 | $139 |
| Dec | 898 | 0 | $455 | $205 |
Quick answers
How much should I budget for a heat pump in New Jersey?
Plan on roughly $10,000–$20,000+ (2,000 sq ft, national HomeGuide range).
Break-even rate for heat pumps in New Jersey?
About 10.8¢/kWh for a 7.5 HSPF2 heat pump against a 95% furnace at $1.37/therm; prices would need to fall about 13.2¢ from New Jersey's 23.98¢ average. A 9.5 HSPF2 unit would heat for $2,066 a year.
Is a heat pump tax credit available now?
Only if it was placed in service by December 31, 2025. 25C paid 30% of cost up to $2,000 a year for qualifying heat pumps; 2025 installs needed a QMID. 2026 installs don't qualify. Source: IRS: Energy Efficient Home Improvement Credit.
Will a heat pump keep up in a New Jersey winter?
Standard units lose capacity in deep cold; with 5,168 heating degree days, choose a cold-climate model or keep gas backup.
More: AC running cost in New Jersey · 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.