Bradford White AeroTherm 65 Gal
#2 in 65 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.
The Bradford White AeroTherm 65 Gal is the better heat pump water heater overall, rated 4.0 to 3.8. The Bradford White AeroTherm 65 Gal leads on efficiency.
A.O. Smith Voltex MAX 66 Gal
#3 in 65 GallonFull review
A solid 240 V heater with leak protection included, sold at Lowe’s as the Signature 900 line.
Lowe's $2,579$2,579
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 Bradford White AeroTherm 65 Gal for efficiency (4.20 UEF vs 3.84 UEF).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 65 gallon heat pump water heater; a clear win is highlighted. How we rank explains each one.
| Factor weight | Bradford White AeroTherm 65 Gal | A.O. Smith Voltex MAX 66 Gal |
|---|---|---|
| Overall rating | 4.0/5 | 3.8/5 |
| Efficiency 35% | 86 4.20 UEF | 60 3.84 UEF |
| Hot water 20% | 88 82 gallons in the first hour | 92 83 gallons in the first hour |
| Warranty 20% | 70 10-year tank, 10-year parts | 75 10-year tank, 10-year parts, 1-year labor |
| Cold rooms 15% | 32 heat pump runs down to 37 °F room air | 32 heat pump runs down to 37 °F room air |
| Noise 10% | 50 noise not published (neutral score used) | 69 45 dB(A) |
Specifications
| Bradford White AeroTherm 65 Gal | A.O. Smith Voltex MAX 66 Gal | |
|---|---|---|
| Ratings (ENERGY STAR) | ||
| Size (nominal) | 65 gal | 66 gal |
| Tank volume (measured) | 65 gal | 68 gal |
| Uniform Energy Factor | 4.20 | 3.84 |
| First-hour rating | 82 gal | 83 gal |
| Draw pattern | High | High |
| Yearly energy use | 1,181 kWh | 1,292 kWh |
| Heat pump cut-off (low) | 37 °F | 37 °F |
| Sound level | - | 45 dB(A) |
| ENERGY STAR ID | 4439730 | 3417561 |
| Installation | ||
| Power | 240 V | 240 V |
| Circuit | 25 A, 208/240 V | 30 A, 208/240 V |
| Backup element | 4,000 W | 4,500 W |
| Operating air range | 37 to 120 °F | 37 to 120 °F |
| Minimum room size | 700 cu ft | 450 cu ft |
| Size | 44.6 in tall, 22 in across | 61 in tall, 23 in across |
| Weight | - | 284 lb |
| Refrigerant | R-134a | R-134a |
| Features | ||
| Wi-Fi | Built in | Built in |
| App | Bradford White Wave | A. O. Smith (iCOMM) |
| Demand response port (CTA-2045) | - | Yes |
| Leak detection | - | Yes |
| Modes | Heat Pump, Hybrid Standard, Hybrid Plus, Electric, Vacation | Hybrid, Heat Pump, Hot Water+ (3 levels), Guest, Electric, Vacation |
| Warranty and models | ||
| Warranty | 10 yr tank, 10 yr parts | 10 yr tank, 10 yr parts, 1 yr labor |
| Also sold as | Jetglas RE2HP6510-1NCTT | American HPA10266H045DV, Lochinvar HPPA065KD, Reliance 10-66-DHPTA, State HPAX-66-DHPT |
| Released | 2025-07 | 2024-03 |