Navien NWP500 80 Gal
#13 in 80 GallonFull review
Navien’s stainless-tank hybrid, sold through plumbers, with a 10-year warranty that includes a year of labor. Its heat pump stops below 41 °F room air, so it suits a basement more than a cold garage.
3.0/5
A plug-in for replacing a gas tank in a mild-climate garage or basement without new wiring. Buy a size up, since it has no element to fall back on.
- 80 galSize
- 3.46UEF
- 84 galFirst hour
- Plug-in 120 VPower
- 37 °FRuns down to
- 10 yr tankWarranty
Check price at Home Depot$2,798
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Plugs into a standard 120 V outlet, so it can replace a gas tank without a new 240 V circuit
- Built-in Wi-Fi: set schedules and vacation mode from the EcoNet app
- 10-year tank and parts warranty plus 1 year of labor
Cons
- No backup element: hot water depends entirely on the heat pump, so heavy use can run it out
- Stops heating when the room drops below 37 °F
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its size. How we rank explains each one.
Specifications
| Model number | XE80T10HM00U0 |
|---|---|
| Ratings (ENERGY STAR) | |
| Size (nominal) | 80 gal |
| Tank volume (measured) | 72 gal |
| Uniform Energy Factor | 3.46 |
| First-hour rating | 84 gal |
| Draw pattern | High |
| Yearly energy use | 1,403 kWh |
| Heat pump cut-off (low) | 37 °F |
| ENERGY STAR ID | 3555356 |
| Installation | |
| Power | Plug-in 120 V |
| Circuit | Shared 15 A or 20 A circuit |
| Backup element | None |
| Operating air range | 37 to 145 °F |
| Minimum room size | 700 cu ft |
| Size | 74.2 in tall, 24.3 in across |
| Weight | 244 lb |
| Refrigerant | R-134a |
| Features | |
| Wi-Fi | Built in |
| App | EcoNet |
| Demand response port (CTA-2045) | Yes |
| Leak detection | No |
| Modes | Heat Pump, Vacation |
| Warranty and models | |
| Warranty | 10 yr tank, 10 yr parts, 1 yr labor |
| Also sold as | Friedrich PROH80 T0 FD120-M, Friedrich PROH80 T0 FD120-MSO, Rheem PROPH80 T0 RH120-M, Rheem PROPH80 T0 RH120-MSO, Richmond 10E80-HP120M, Richmond 10E80-HP120MS, Ruud PROUH80 T0 RU120-M, Ruud PROUH80 T0 RU120-MSO |
| Released | 2024-03 |
Alternatives in this size
Rheem ProTerra 15 A 80 Gal
#14 in 80 GallonFull review
The ProTerra for a home that only has a 15 A, 240 V circuit, such as one left by a small electric tank: it avoids rewiring but gives up some efficiency and first-hour delivery.
A.O. Smith Voltex 120V 80 Gal
#16 in 80 GallonFull review
A 120 V plug-in with a backup element and leak shut-off included. Its certified efficiency is among the lowest here, so it suits replacing a gas tank more than replacing an electric one.
Lowe's $3,098$3,098
Compare
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