Every model below is published with verified specs. Savings calculated from EIA average energy prices.
Quick verdict
Lowest annual bill
Noritz NHP65
$168/yr
Most efficient
Bradford White RE2HP65-1NCTT
UEF 4.20
Shortest unit
Bradford White RE2HP65-1NCTT
44.6" tall
What a typical electric tank unit costs to operate
Annual$930/yr
10-year projection$9,300
Based on UEF 0.92 (Electric Tank). U.S. average energy rates (EIA).
Replacement options
Noritz NHP65
Heat PumpUEF 3.34 / ~$168/yr / 10-yr tank warranty
Annual savings$762/yr
10-year savings$7,620
Install changes
- Needs condensate drain
- 30A breaker (electric tanks typically use 25A)
Bradford White RE2HP65-1NCTT
Heat PumpUEF 4.20 / ~$204/yr / 10-yr tank warranty
Annual savings$726/yr
10-year savings$7,260
Rheem PROPH65 T2 RH400-30
Heat PumpUEF 4.05 / ~$204/yr / 10-yr tank warranty
Annual savings$726/yr
10-year savings$7,260
Install changes
- 30A breaker (electric tanks typically use 25A)
A. O. Smith HPTS-66-2
Heat PumpUEF 3.70 / ~$213/yr / 10-yr tank warranty
Annual savings$717/yr
10-year savings$7,170
Install changes
- Needs condensate drain
- 30A breaker (electric tanks typically use 25A)
Rinnai REHP65BM
Heat PumpUEF 3.90 / ~$214/yr / 10-yr tank warranty
Annual savings$716/yr
10-year savings$7,160
Install changes
- 30A breaker (electric tanks typically use 25A)
Navien NWP500S065AUMB
Heat PumpUEF 4.03 / ~$215/yr / 10-yr tank warranty
Annual savings$715/yr
10-year savings$7,150
Install changes
- Needs condensate drain
- 30A breaker (electric tanks typically use 25A)
A. O. Smith HPTA-66-2
Heat PumpUEF 3.84 / ~$223/yr / 10-yr tank warranty
Annual savings$707/yr
10-year savings$7,070
Bradford White RE2H65T
Heat PumpUEF 3.64 / ~$235/yr / 10-yr tank warranty
Annual savings$695/yr
10-year savings$6,950
Install changes
- 30A breaker (electric tanks typically use 25A)
Side-by-side comparison
| Spec | NHP65 | RE2HP65-1NCTT | PROPH65 T2 RH400-30 | HPTS-66-2 | REHP65BM | NWP500S065AUMB | HPTA-66-2 | RE2H65T |
|---|---|---|---|---|---|---|---|---|
| UEF | 3.34 | 4.20 | 4.05 | 3.70 | 3.90 | 4.03 | 3.84 | 3.64 |
| Annual Cost | $168/yr | $204/yr | $204/yr | $213/yr | $214/yr | $215/yr | $223/yr | $235/yr |
| Annual Savings | $762/yr | $726/yr | $726/yr | $717/yr | $716/yr | $715/yr | $707/yr | $695/yr |
| Height | 63.8" | 44.6" | 64.2" | 61.5" | 65.5" | 63" | 61.0" | 63.8" |
| Capacity | 57 gal | 65 gal | 59 gal | 67 gal | 60 gal | 61 gal | 68 gal | 64 gal |
| Warranty | 10 yr | 10 yr | 10 yr | 10 yr | 10 yr | 10 yr | 10 yr | 10 yr |
● Best value in each row.
Install considerations: electric tank to heat pump
Items your installer may need. Actual requirements depend on your existing setup, local code, and jurisdiction.
The federal tax credit of up to $2,000 under IRA Section 25C expired December 31, 2025. State and utility rebates may still apply.
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Sources. ENERGY STAR, manufacturer spec sheets, EIA average energy prices.Methodology