A. O. Smith Heat Pump 65-Gallon (HPTV-66 2)
A. O. Smith Heat Pump 65-Gallon (HPTV-66 2) is a heat pump (hybrid electric) water heater from A. O. Smith with a 68 gallon rated tank and a 76 gallon first-hour rating at a 3.2 UEF.
| Uniform Energy Factor (UEF) | 3.2 |
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| Annual electricity use | 1550 kWh/yr |
| Recovery efficiency | 368 % |
| Fuel | Electric |
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| First-hour rating | 76 gal |
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| Rated storage volume | 68 gal |
| Draw pattern | High |
| Heat pump type | 120 Volt Integrated HPWH |
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| Refrigerant (GWP) | R-513A (GWP:630) |
| Compressor low-temp cutoff | 37 °F |
| Input voltage | 120 |
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| Max current draw | 15 A |
| Smart / connected capable | Yes |
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| Height | 61 in |
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| Diameter | 23 in |
| ENERGY STAR certified | Yes |
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Who is the A. O. Smith Heat Pump 65-Gallon (HPTV-66 2) for?
- Its 76 gallon first-hour rating suits a household of 5+ people under DOE sizing guidance.
- Estimated running cost: about $264/year at the national average electricity rate (1550 kWh/yr certified use).
- Runs on a 120 V circuit (up to 15 A) — often no new wiring needed.
- The heat pump compressor operates down to 37 °F ambient — below that, backup elements take over.
Similar water heaters
- A. O. Smith Heat Pump 65-Gallon (HPV10-66H01DV 2) (UEF 3.2)
- American Heat Pump 65-Gallon (HPV10266H009DV 2) (UEF 3.2)
- LG APHWC501M 50-Gallon (UEF 3.93)
- LG APHWC501M 50-Gallon (APHWC501D) (UEF 3.93)
- LG APHWC501M 50-Gallon (APHWC501L) (UEF 3.93)
- Lochinvar Heat Pump 65-Gallon (HPV065KD 2) (UEF 3.2)
Frequently asked questions
Is the A. O. Smith Heat Pump 65-Gallon (HPTV-66 2) ENERGY STAR certified?
Yes, the A. O. Smith Heat Pump 65-Gallon (HPTV-66 2) holds a current ENERGY STAR certification for water heating efficiency (UEF 3.2).
How much does the A. O. Smith Heat Pump 65-Gallon (HPTV-66 2) cost to run per year?
About $264 per year at national average energy rates, based on its certified annual energy use under the DOE test draw pattern. Your rate and usage change this figure.
What electrical circuit does the A. O. Smith Heat Pump 65-Gallon (HPTV-66 2) need?
The A. O. Smith Heat Pump 65-Gallon (HPTV-66 2) runs on a 120 V circuit drawing up to 15 A — many installations use an existing outlet with no new wiring.
Is the A. O. Smith Heat Pump 65-Gallon (HPTV-66 2) a smart water heater?
Yes, the A. O. Smith Heat Pump 65-Gallon (HPTV-66 2) is connected-capable, with app control and eligibility for most utility demand-response programs.
Sources
- data.energystar.gov (retrieved 2026-07-17)