Ruud Heat Pump 65-Gallon (PROUH65 T0 RU120-MSO) is a heat pump (hybrid electric) water heater from Ruud with a 59 gallon rated tank and a 63 gallon first-hour rating at a 3.12 UEF — 971 kWh/yr certified use, 64.2 in tall.
Also sold as the Rheem Heat Pump 65-Gallon (PROPH65 T0 RH120-M). This model is the same certified
hardware as the Rheem Heat Pump 65-Gallon (PROPH65 T0 RH120-M), published under a
different brand — full details, comparisons, and pricing live on that page. The
certified figures below are identical.
Efficiency
Uniform Energy Factor (UEF)
3.12
Annual electricity use
971 kWh/yr
Recovery efficiency
398 %
General
Fuel
Electric
Capacity
First-hour rating
63 gal
Rated storage volume
59 gal
Draw pattern
Medium
Heat pump
Heat pump type
120 Volt Integrated HPWH
Refrigerant (GWP)
R-134a (GWP:1430)
Compressor low-temp cutoff
37 °F
Installation
Input voltage
120
Max current draw
12 A
Smart features
Smart / connected capable
No
Dimensions
Height
64.2 in
Diameter
24.3 in
Certification
ENERGY STAR certified
Yes
Who is the Ruud Heat Pump 65-Gallon (PROUH65 T0 RU120-MSO) for?
Its 63 gallon first-hour rating suits a
household of 3–4 people under DOE sizing guidance.
Estimated running cost: about $165/year at the national
average electricity rate (971 kWh/yr certified use).
Runs on a 120 V circuit (up to 12 A) — often no new wiring needed.
The heat pump compressor operates down to 37 °F ambient — below that, backup
elements take over.
Is the Ruud Heat Pump 65-Gallon (PROUH65 T0 RU120-MSO) ENERGY STAR certified?
Yes, the Ruud Heat Pump 65-Gallon (PROUH65 T0 RU120-MSO) holds a current ENERGY STAR certification for water heating efficiency (UEF 3.12).
How much does the Ruud Heat Pump 65-Gallon (PROUH65 T0 RU120-MSO) cost to run per year?
About $165 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 Ruud Heat Pump 65-Gallon (PROUH65 T0 RU120-MSO) need?
The Ruud Heat Pump 65-Gallon (PROUH65 T0 RU120-MSO) runs on a 120 V circuit drawing up to 12 A — many installations use an existing outlet with no new wiring.
Is the Ruud Heat Pump 65-Gallon (PROUH65 T0 RU120-MSO) a smart water heater?
No, the Ruud Heat Pump 65-Gallon (PROUH65 T0 RU120-MSO) is not connected-capable — it has no app connectivity or demand-response support.
