The pick for most homes with a 240 V circuit: the most efficient and quietest heater here, at every size.
GE Appliances PC Richard $2,529.97The GE Profile 50 Gal is the better heat pump water heater overall, rated 4.4 to 3.6. The GE Profile 50 Gal leads on efficiency, noise and cold rooms. The Rinnai REHP50 costs $730.97 less ($1,799 vs $2,529.97).
A Midea-built heater with Rinnai’s support network and one of the few listings on Amazon. Check the seller is a Rinnai-authorized dealer before buying.
Amazon $1,799 Lowe's $1,799Prices were last checked October 21, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the GE Profile 50 Gal for efficiency (4.30 UEF vs 3.75 UEF), noise (41 dB(A) vs 49 dB(A)) and cold rooms (heat pump runs down to 35 °F room air vs heat pump runs down to 37.4 °F room air).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 40–50 gallon heat pump water heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | GE Profile 50 Gal | Rinnai REHP50 |
|---|---|---|
| Overall rating | 4.4/5 | 3.6/5 |
| Efficiency 35% | 93 4.30 UEF | 54 3.75 UEF |
| Hot water 20% | 100 77 gallons in the first hour | 92 73 gallons in the first hour |
| Warranty 20% | 75 10-year tank, 10-year parts, 1-year labor | 75 10-year tank, 10-year parts, 1-year labor |
| Cold rooms 15% | 40 heat pump runs down to 35 °F room air | 30 heat pump runs down to 37.4 °F room air |
| Noise 10% | 94 41 dB(A) | 44 49 dB(A) |
Specifications
| GE Profile 50 Gal | Rinnai REHP50 | |
|---|---|---|
| Ratings (ENERGY STAR) | ||
| Size (nominal) | 50 gal | 50 gal |
| Tank volume (measured) | 50 gal | 46 gal |
| Uniform Energy Factor | 4.30 | 3.75 |
| First-hour rating | 77 gal | 73 gal |
| Draw pattern | High | Medium |
| Yearly energy use | 1,154 kWh | 844 kWh |
| Heat pump cut-off (low) | 35 °F | 37.4 °F |
| Sound level | 41 dB(A) | 49 dB(A) |
| ENERGY STAR ID | 4020929 | 3531243 |
| Installation | ||
| Power | 240 V | 240 V |
| Circuit | 30 A, 208/240 V | 30 A, 208/240 V |
| Backup element | 5,500 W | 4,500 W |
| Operating air range | 35 to 120 °F | 37 to 107 °F |
| Minimum room size | 700 cu ft | 700 cu ft |
| Size | 48.1 in tall, 18.5 in across | 66.4 in tall, 21.7 in across |
| Weight | 179 lb | 218 lb |
| Refrigerant | R1234YF | R-134a |
| Features | ||
| Wi-Fi | Built in | No |
| App | SmartHQ | - |
| Demand response port (CTA-2045) | Yes | - |
| Leak detection | Yes | No |
| Modes | Heat Pump, Hybrid, High Demand, Electric, Vacation | Economy, Heat Pump, Hybrid, E-Heater, Vacation |
| Warranty and models | ||
| Warranty | 10 yr tank, 10 yr parts, 1 yr labor | 10 yr tank, 10 yr parts, 1 yr labor |
| Released | 2025-05 | 2024-08 |
