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Heater Types

Heat Pump Water HeatersHigh-efficiency electric replacements and hybrid tanks.Condensing Tankless Water HeatersCondensing whole-home flow with venting constraints.Gas Tank Water HeatersStraight swaps when gas storage is still the fit.

Plan Your Swap

Sizing guideCapacity, first-hour rating, and temperature-rise fit.Accessories hubInstall extras, code-adjacent parts, and paid-link accessory picks.Upgrade from 50 Gallon Electric TO HEAT PUMPUpgrade from 50 Gallon GAS TO HEAT PUMPUpgrade from 65 Gallon TO HEAT PUMPUpgrade from 80 Gallon TO HEAT PUMPUpgrade from GAS TO ElectricUpgrade from GAS TO TanklessHPTA 50 2 vs HPTA 80 2HPTS 50 2 vs NHP50NHP120 vs PROPH80 T2 RH400 30NPE 210S2 vs NPE 240S2NWP500S050AUMB vs NHP50PROPH40 T2 RH400 30 vs PROPH50 T2 RH400 30

Guides & Data

Arizona heat pump guideCalifornia heat pump guideColorado heat pump guideConnecticut heat pump guideFlorida heat pump guideGeorgia heat pump guideIllinois heat pump guideMassachusetts heat pump guideMinnesota heat pump guideNew Jersey heat pump guideNew York heat pump guideNorth Carolina heat pump guideOhio heat pump guideOregon heat pump guidePennsylvania heat pump guideTexas heat pump guideVirginia heat pump guideWashington heat pump guideTax credits & rebatesFederal 25C expired. State HEAR status and active rebate programs.Heat pump vs electric tankAnnual cost comparison using verified model specs.DOE 2029 standardsWhat changes in 2029 and which product classes move first.

Brands

A.O. Smith Water HeatersBradford White Water HeatersNavien Water HeatersNoritz Water HeatersRheem Water HeatersRinnai Water HeatersTakagi Water Heaters
Home / Replace / 65-Gallon Tank to Heat Pump
Replacement guide

65-Gallon Tank to Heat Pump

8 replacement options compared. All specs from verified model records.
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 Pump

UEF 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)
Full specs

Bradford White RE2HP65-1NCTT

Heat Pump

UEF 4.20 / ~$204/yr / 10-yr tank warranty

Annual savings$726/yr
10-year savings$7,260
Full specs

Rheem PROPH65 T2 RH400-30

Heat Pump

UEF 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)
Full specs

A. O. Smith HPTS-66-2

Heat Pump

UEF 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)
Full specs

Rinnai REHP65BM

Heat Pump

UEF 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)
Full specs

Navien NWP500S065AUMB

Heat Pump

UEF 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)
Full specs

A. O. Smith HPTA-66-2

Heat Pump

UEF 3.84 / ~$223/yr / 10-yr tank warranty

Annual savings$707/yr
10-year savings$7,070
Full specs

Bradford White RE2H65T

Heat Pump

UEF 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)
Full specs

Side-by-side comparison

SpecNHP65RE2HP65-1NCTTPROPH65 T2 RH400-30HPTS-66-2REHP65BMNWP500S065AUMBHPTA-66-2RE2H65T
UEF3.344.204.053.703.904.033.843.64
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
Height63.8"44.6"64.2"61.5"65.5"63"61.0"63.8"
Capacity57 gal65 gal59 gal67 gal60 gal61 gal68 gal64 gal
Warranty10 yr10 yr10 yr10 yr10 yr10 yr10 yr10 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.

Thermal Expansion Tank Keep or replace existing Check on Amazon (paid link)
Water Heater Drain Pan Larger pan likely needed Check on Amazon (paid link)
Condensate Drain Line Heat pumps produce condensate Check on Amazon (paid link)
Full accessories list

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