Every replacement below is a published model with verified specs. Savings calculated from EIA average energy prices.
Quick verdict
Fewest install changes
Navien NPE-240S2
1 install change
Lowest annual bill
Rheem PROPH50 T2 RH400-30
$146/yr
Shortest unit
Navien NPE-240S2
27.4" tall
Your RTGH-95DVLN-3 costs $250/yr. Every option below cuts that bill. See all heat pump models
What your current unit costs to operate
Annual$250/yr
10-year projection$2,500
Based on U.S. average energy rates (EIA). UEF 0.93.
Replacement options
Rheem PROPH50 T2 RH400-30
Heat PumpUEF 3.88 / ~$146/yr / 10-yr tank warranty
Same brand, gas to electric switch, UEF jumps from 0.93 to 3.88 but requires tank space and 240V circuit
Annual savings$104/yr
10-year savings$1,040
Install changes
- Requires 240V (your current unit is 120V)
- 30A dedicated breaker needed
- 38.8" taller than your current unit
- 4.2" wider than your current unit
Rheem PROPH80 T2 RH400-30
Heat PumpUEF 4.07 / ~$209/yr / 10-yr tank warranty
Same brand large heat pump, UEF 4.07, for households needing high capacity
Annual savings$41/yr
10-year savings$410
Install changes
- Requires 240V (your current unit is 120V)
- 30A dedicated breaker needed
- 51.2" taller than your current unit
- 6.2" wider than your current unit
Navien NPE-240S2
Condensing TanklessUEF 0.96 / ~$239/yr
Cross-brand gas tankless, UEF 0.96 vs 0.93, propane/natural gas capable
Annual savings$11/yr
10-year savings$110
Install changes
- 15A dedicated breaker needed
- 4.4" taller than your current unit
Side by side, the key differences.
Replacement comparison
| Spec | Your unit | PROPH50 T2 RH400-30 | PROPH80 T2 RH400-30 | NPE-240S2 |
|---|---|---|---|---|
| UEF | 0.93 | 3.88 | 4.07 | 0.96 |
| Annual Cost | $250/yr | $146/yr | $209/yr | $239/yr |
| Annual Savings | $104/yr | $41/yr | $11/yr | |
| Height | 23" | 61.8" | 74.2" | 27.4" |
| Width | 18" | 22.2" | 24.2" | 17.3" |
| Warranty | 10 yr | 10 yr | — |
● Best value in each row. Your unit column shows the model being replaced.
Common install considerations for heat pump units
What is required depends on your existing installation, local code, and installer preference.
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