GE Profile 40 Gal
#2 in 40–50 GallonFull review
The pick for most homes with a 240 V circuit: the most efficient and quietest heater here, at every size.
GE Appliances PC Richard $2,419.97$2,419.97
The GE Profile 40 Gal is the better heat pump water heater overall, rated 4.0 to 3.1. The GE Profile 40 Gal leads on efficiency, hot water and noise. The A.O. Smith Voltex MAX 40 Gal costs $321.97 less ($2,098 vs $2,419.97).
A.O. Smith Voltex MAX 40 Gal
#17 in 40–50 GallonFull review
A solid 240 V heater with leak protection included, sold at Lowe’s as the Signature 900 line.
Lowe's $2,098$2,098
Prices 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 40 Gal for efficiency (4.20 UEF vs 3.60 UEF), hot water (64 gallons in the first hour vs 55 gallons in the first hour) and noise (41 dB(A) vs 45 dB(A)).
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 40 Gal | A.O. Smith Voltex MAX 40 Gal |
|---|---|---|
| Overall rating | 4.0/5 | 3.1/5 |
| Efficiency 35% | 86 4.20 UEF | 43 3.60 UEF |
| Hot water 20% | 56 64 gallons in the first hour | 20 55 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 | 32 heat pump runs down to 37 °F room air |
| Noise 10% | 94 41 dB(A) | 69 45 dB(A) |
Specifications
| GE Profile 40 Gal | A.O. Smith Voltex MAX 40 Gal | |
|---|---|---|
| Ratings (ENERGY STAR) | ||
| Size (nominal) | 40 gal | 40 gal |
| Tank volume (measured) | 40 gal | 36 gal |
| Uniform Energy Factor | 4.20 | 3.60 |
| First-hour rating | 64 gal | 55 gal |
| Draw pattern | Medium | Medium |
| Yearly energy use | 773 kWh | 902 kWh |
| Heat pump cut-off (low) | 35 °F | 37 °F |
| Sound level | 41 dB(A) | 45 dB(A) |
| ENERGY STAR ID | 4016264 | 3417480 |
| 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 120 °F |
| Minimum room size | 700 cu ft | 450 cu ft |
| Size | 39.4 in tall, 18.5 in across | 66 in tall, 20 in across |
| Weight | 165 lb | 191 lb |
| Refrigerant | R1234YF | R-134a |
| Features | ||
| Wi-Fi | Built in | Built in |
| App | SmartHQ | A. O. Smith (iCOMM) |
| Demand response port (CTA-2045) | Yes | Yes |
| Leak detection | Yes | Yes |
| Modes | Heat Pump, Hybrid, High Demand, Electric, Vacation | Hybrid, Heat Pump, Hot Water+ (3 levels), Guest, Electric, Vacation |
| Warranty and models | ||
| Warranty | 10 yr tank, 10 yr parts, 1 yr labor | 10 yr tank, 10 yr parts, 1 yr labor |
| Also sold as | - | American HPA10240H045DV, Lochinvar HPPA040KD, Reliance 10-40-DHPTA, State HPAX-40-DHPT |
| Released | 2025-05 | 2024-03 |