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 3.6. The Bradford White AeroTherm 65 Gal leads on efficiency and hot water. The Ariston NUOS Side-Connect 65 Gal wins on cold rooms.
Ariston NUOS Side-Connect 65 Gal
#11 in 65 GallonFull review
A non-Midea design with a leak sensor built in and a 10-year tank and parts warranty, sold through plumbing dealers. It is louder than most here.
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 3.85 UEF) and hot water (82 gallons in the first hour vs 78 gallons in the first hour).
- Choose the Ariston NUOS Side-Connect 65 Gal for cold rooms (heat pump runs down to 35 °F room air vs heat pump runs down to 37 °F room air).
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 | Ariston NUOS Side-Connect 65 Gal |
|---|---|---|
| Overall rating | 4.0/5 | 3.6/5 |
| Efficiency 35% | 86 4.20 UEF | 61 3.85 UEF |
| Hot water 20% | 88 82 gallons in the first hour | 72 78 gallons in the first hour |
| Warranty 20% | 70 10-year tank, 10-year parts | 70 10-year tank, 10-year parts |
| Cold rooms 15% | 32 heat pump runs down to 37 °F room air | 40 heat pump runs down to 35 °F room air |
| Noise 10% | 50 noise not published (neutral score used) | 43 49.1 dB(A) |
Specifications
| Bradford White AeroTherm 65 Gal | Ariston NUOS Side-Connect 65 Gal | |
|---|---|---|
| Ratings (ENERGY STAR) | ||
| Size (nominal) | 65 gal | 65 gal |
| Tank volume (measured) | 65 gal | 62 gal |
| Uniform Energy Factor | 4.20 | 3.85 |
| First-hour rating | 82 gal | 78 gal |
| Draw pattern | High | High |
| Yearly energy use | 1,181 kWh | 1,289 kWh |
| Heat pump cut-off (low) | 37 °F | 35 °F |
| Sound level | - | 49.1 dB(A) |
| ENERGY STAR ID | 4439730 | 3942614 |
| 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 | 36 to 120 °F |
| Minimum room size | 700 cu ft | 700 cu ft |
| Size | 44.6 in tall, 22 in across | 50 in tall, 20.2 in across |
| Refrigerant | R-134a | R-134a |
| Features | ||
| Wi-Fi | Built in | Built in |
| App | Bradford White Wave | Ariston NET |
| Demand response port (CTA-2045) | - | Yes |
| Leak detection | - | Yes |
| Modes | Heat Pump, Hybrid Standard, Hybrid Plus, Electric, Vacation | Comfort, Green, Fast, Electric, Vacation |
| Warranty and models | ||
| Warranty | 10 yr tank, 10 yr parts | 10 yr tank, 10 yr parts |
| Also sold as | Jetglas RE2HP6510-1NCTT | American Standard ASHPWH-65*****, Lennox WHHP065T45MD240S**** |
| Released | 2025-07 | 2024-12 |