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.
3.4/5
The most efficient 120 V plug-in here, and the quietest, for replacing a gas tank without new wiring. It can be rewired for 240 V later if the household outgrows it.
- 65 galSize
- 3.40UEF
- 77 galFirst hour
- Plug-in 120 VPower
- 35 °FRuns down to
- 10 yr tankWarranty
Check price at GE AppliancesCheck price at Wayfair$2,547
Price checked October 21, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Quiet for a heat pump: 41 dB(A)
- Plugs into a standard 120 V outlet, so it can replace a gas tank without a new 240 V circuit
- The heat pump keeps running in rooms down to 35 °F
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 | PF65S10FPY |
|---|---|
| Ratings (ENERGY STAR) | |
| Size (nominal) | 65 gal |
| Tank volume (measured) | 65 gal |
| Uniform Energy Factor | 3.40 |
| First-hour rating | 77 gal |
| Draw pattern | High |
| Yearly energy use | 1,459 kWh |
| Heat pump cut-off (low) | 35 °F |
| Sound level | 41 dB(A) |
| ENERGY STAR ID | 4480873 |
| Installation | |
| Power | Plug-in 120 V |
| Circuit | Shared 15 A circuit |
| Backup element | 900 W |
| Operating air range | 35 to 120 °F |
| Minimum room size | 700 cu ft |
| Size | 47.5 in tall, 21.5 in across |
| Weight | 269 lb |
| Refrigerant | R1234YF |
| Features | |
| Wi-Fi | Built in |
| App | SmartHQ |
| Demand response port (CTA-2045) | Yes |
| Leak detection | Yes |
| Modes | Heat Pump, Hybrid, High Demand, Electric, Vacation |
| Warranty and models | |
| Warranty | 10 yr tank, 10 yr parts, 1 yr labor |
| Released | 2025-07 |
Alternatives in this size
Senville SENWH-HP 65 Gal
#12 in 65 GallonFull review
The Midea-built design sold direct by Senville, for a buyer comfortable with a smaller brand’s warranty terms.
Senville $2,199.99$2,199.99
A.O. Smith Voltex 120V 66 Gal
#14 in 65 GallonFull review
A 120 V plug-in with a backup element and leak shut-off included. Its certified efficiency is among the lowest here, so it suits replacing a gas tank more than replacing an electric one.
Lowe's $2,698$2,698
Compare
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