Rinnai REHP80
#7 in 80 GallonFull review
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 $2,699$2,699
3.6/5
The Midea original behind several heaters here, sold through HVAC contractors. Buy whichever version is easiest to get with the warranty you want.
- 80 galSize
- 4.00UEF
- 91 galFirst hour
- 240 VPower
- 37.4 °FRuns down to
- 10 yr tankWarranty
See it at Midea
No store we check sells it online; the maker lists where to buy or who installs it.
Pros
- The original design behind the Rinnai, Bosch, Senville and ACiQ heaters here
- Very efficient: a certified UEF of 4.00, about a quarter of the electricity of a standard electric tank
- Built-in Wi-Fi: set schedules and vacation mode from the Midea SmartHome app
Cons
- Parts are covered 5 years unless registered (then 10)
- Louder than most at 49 dB(A); best kept away from bedrooms
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 | MAHW-80VN3A |
|---|---|
| Ratings (ENERGY STAR) | |
| Size (nominal) | 80 gal |
| Tank volume (measured) | 74 gal |
| Uniform Energy Factor | 4.00 |
| First-hour rating | 91 gal |
| Draw pattern | High |
| Yearly energy use | 1,240 kWh |
| Heat pump cut-off (low) | 37.4 °F |
| Sound level | 49 dB(A) |
| ENERGY STAR ID | 3543847 |
| Installation | |
| Power | 240 V |
| Circuit | 30 A, 208/240 V |
| Backup element | 4,500 W |
| Operating air range | 37 to 109 °F |
| Size | 41.7 in tall, 21.8 in across |
| Weight | 290 lb |
| Refrigerant | R-134a |
| Features | |
| Wi-Fi | Built in |
| App | Midea SmartHome |
| Demand response port (CTA-2045) | Yes |
| Leak detection | No |
| Modes | Economy, Heat Pump, Hybrid, E-Heater, Vacation |
| Warranty and models | |
| Warranty | 10 yr tank, 10 yr parts |
| Also sold as | Kepler AZMCHW-80VN3A, Eco-Logical ECO-80HPM1A, Alsetria HPWH-80G, ECO-AIR HPWH - 80G, NOVAIR TCL-80GL-R134A, Custom Comfort CCOHPWH80A |
| Released | 2023-11 |
Alternatives in this size
ACiQ 80 Gal Hybrid
#8 in 80 GallonFull review
The Midea-built design, sold direct by an online HVAC store, for a buyer installing it themselves who doesn’t need labor cover.
ACiQ HVACDirect $2,149.99$2,149.99
Bradford White AeroTherm 80 Gal
#10 in 80 GallonFull review
Bradford White’s second-generation hybrid, sold and installed through plumbers, with a 10-year tank and parts warranty and a port for utility demand-response programs.
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