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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 / XG50T09HE40U0
Upgrade path

Upgrade from XG50T09HE40U0

2 verified replacements for the Rheem XG50T09HE40U0.
Every replacement below is a published model with verified specs. Savings calculated from EIA average energy prices.

Quick verdict

Fewest install changes Rheem PROPH80 T2 RH400-30 1 install change
Lowest annual bill Rheem PROPH80 T2 RH400-30 $209/yr
Shortest unit Rheem RTGH-95DVLN-3 23.0" tall
Your XG50T09HE40U0 costs $363/yr. Every option below cuts that bill. See all condensing tankless models

What your current unit costs to operate

Annual$363/yr
10-year projection$3,630

Based on U.S. average energy rates (EIA). UEF 0.64.

Replacement options

Rheem RTGH-95DVLN-3

Condensing Tankless

UEF 0.93 / ~$250/yr

Gas tank to gas tankless for endless hot water and space savings

Annual savings$113/yr
10-year savings$1,130
Install changes
  • Requires 120V electrical service
  • Needs condensate drain (your current unit does not)
  • No venting required (your current unit has a vent)
  • 39.8" shorter than your current unit
  • 3.5" narrower than your current unit
Full specs

Rheem PROPH80 T2 RH400-30

Heat Pump

UEF 4.07 / ~$209/yr / 10-yr tank warranty

Gas to electric heat pump for maximum efficiency and electrification

Annual savings$154/yr
10-year savings$1,540
Install changes
  • Requires 240V electrical service
  • 30A dedicated breaker needed
  • No venting required (your current unit has a vent)
  • 11.4" taller than your current unit
  • 2.8" wider than your current unit
Full specs
Side by side, the key differences.

Replacement comparison

SpecYour unitRTGH-95DVLN-3PROPH80 T2 RH400-30
UEF0.640.934.07
Annual Cost$363/yr$250/yr$209/yr
Annual Savings$113/yr$154/yr
Height62.8"23"74.2"
Width21.5"18"24.2"
Warranty9 yr—10 yr

● Best value in each row. Your unit column shows the model being replaced.

Install considerations: gas tank to gas tankless

Items your installer may need. Actual requirements depend on your existing setup, local code, and jurisdiction.

Venting Kit New stainless steel or PVC vent run Check on Amazon (paid link)
Gas Flex Connector May need resizing for higher BTU Check on Amazon (paid link)
Condensate Neutralizer Kit Required for condensing units 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.

Related
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Sources. ENERGY STAR, manufacturer spec sheets, EIA average energy prices.Methodology