LG Inverter Heat Pump 80 Gal
#5 in 80 GallonFull review
The pick for a cold garage or basement: its heat pump keeps working in rooms down to 23 °F. Sold through LG’s HVAC dealers.
3.7/5
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.
- 80 galSize
- 4.00UEF
- 91 galFirst hour
- 240 VPower
- 37.4 °FRuns down to
- 10 yr tankWarranty
Check price at Amazon$2,699
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Built by Midea, like several other brands here, with the same certified ratings
- Very efficient: a certified UEF of 4.00, about a quarter of the electricity of a standard electric tank
- 10-year tank and parts warranty plus 1 year of labor
Cons
- Rinnai voids the warranty if the heater is bought from a dealer it hasn’t authorized
- Louder than most at 49 dB(A); best kept away from bedrooms
- No Wi-Fi or app control
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 | REHP80 |
|---|---|
| Ratings (ENERGY STAR) | |
| Size (nominal) | 80 gal |
| Tank volume (measured) | 75 gal |
| Uniform Energy Factor | 4.00 |
| First-hour rating | 91 gal |
| Draw pattern | High |
| Yearly energy use | 1,225 kWh |
| Heat pump cut-off (low) | 37.4 °F |
| Sound level | 49 dB(A) |
| ENERGY STAR ID | 3531242 |
| Installation | |
| Power | 240 V |
| Circuit | 30 A, 208/240 V |
| Backup element | 4,500 W |
| Operating air range | 37 to 107 °F |
| Minimum room size | 700 cu ft |
| Size | 74.2 in tall, 25.7 in across |
| Weight | 290 lb |
| Refrigerant | R-134a |
| Features | |
| Wi-Fi | No |
| Leak detection | No |
| Modes | Economy, Heat Pump, Hybrid, E-Heater, Vacation |
| Warranty and models | |
| Warranty | 10 yr tank, 10 yr parts, 1 yr labor |
| Released | 2024-08 |
Alternatives in this size
Bosch GreenTronic 7000T 80 Gal
#6 in 80 GallonFull review
The Midea-built design with Bosch’s name and warranty, sold at Lowe’s.
Lowe's $4,550$4,550
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
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