Every model below is published with verified specs. Savings calculated from EIA average energy prices.
Quick verdict
Lowest annual bill
Rheem PROPH80 T2 RH400-30
$209/yr
Most efficient
Rheem PROPH80 T2 RH400-30
UEF 4.07
Shortest unit
Bradford White RE2HP80-1NCTT
51.1" 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
Rheem PROPH80 T2 RH400-30
Heat PumpUEF 4.07 / ~$209/yr / 10-yr tank warranty
Annual savings$721/yr
10-year savings$7,210
Install changes
- 30A breaker (electric tanks typically use 25A)
Rinnai REHP80BM
Heat PumpUEF 4.00 / ~$211/yr / 10-yr tank warranty
Annual savings$719/yr
10-year savings$7,190
Install changes
- 30A breaker (electric tanks typically use 25A)
Bradford White RE2HP80-1NCTT
Heat PumpUEF 4.00 / ~$214/yr / 10-yr tank warranty
Annual savings$716/yr
10-year savings$7,160
Navien NWP500S080AUMB
Heat PumpUEF 4.05 / ~$218/yr / 10-yr tank warranty
Annual savings$712/yr
10-year savings$7,120
Install changes
- Needs condensate drain
- 30A breaker (electric tanks typically use 25A)
A. O. Smith HPTA-80-2
Heat PumpUEF 3.88 / ~$220/yr / 10-yr tank warranty
Annual savings$710/yr
10-year savings$7,100
Install changes
- 30A breaker (electric tanks typically use 25A)
A. O. Smith HPTS-80-2
Heat PumpUEF 3.88 / ~$220/yr / 10-yr tank warranty
Annual savings$710/yr
10-year savings$7,100
Install changes
- Needs condensate drain
- 30A breaker (electric tanks typically use 25A)
Bradford White RE2H80T
Heat PumpUEF 3.59 / ~$238/yr / 10-yr tank warranty
Annual savings$692/yr
10-year savings$6,920
Install changes
- 30A breaker (electric tanks typically use 25A)
Noritz NHP80
Heat PumpUEF 3.48 / ~$245/yr / 10-yr tank warranty
Annual savings$685/yr
10-year savings$6,850
Install changes
- Needs condensate drain
- 30A breaker (electric tanks typically use 25A)
Noritz NHP120
Heat PumpUEF 3.38 / ~$253/yr / 10-yr tank warranty
Annual savings$677/yr
10-year savings$6,770
Side-by-side comparison
| Spec | PROPH80 T2 RH400-30 | REHP80BM | RE2HP80-1NCTT | NWP500S080AUMB | HPTA-80-2 | HPTS-80-2 | RE2H80T | NHP80 | NHP120 |
|---|---|---|---|---|---|---|---|---|---|
| UEF | 4.07 | 4.00 | 4.00 | 4.05 | 3.88 | 3.88 | 3.59 | 3.48 | 3.38 |
| Annual Cost | $209/yr | $211/yr | $214/yr | $218/yr | $220/yr | $220/yr | $238/yr | $245/yr | $253/yr |
| Annual Savings | $721/yr | $719/yr | $716/yr | $712/yr | $710/yr | $710/yr | $692/yr | $685/yr | $677/yr |
| Height | 74.2" | 74.2" | 51.1" | 71.6" | 69.0" | 69" | 70.8" | 74.0" | 84.5" |
| Capacity | 72 gal | 75 gal | 75 gal | 74 gal | 81 gal | 82 gal | 75 gal | 74 gal | 109 gal |
| Warranty | 10 yr | 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