Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310UM) is a heat pump (hybrid electric) water heater from Friedrich with a 36 gallon rated tank and a 60 gallon first-hour rating at a 3.5 UEF — 879 kWh/yr certified use, 45 in tall.
Also sold as the Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310BM). This model is the same certified
hardware as the Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310BM), 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)
3.5
Annual electricity use
879 kWh/yr
Recovery efficiency
430 %
General
Fuel
Electric
Capacity
First-hour rating
60 gal
Rated storage volume
36 gal
Draw pattern
Medium
Heat pump
Heat pump type
240 Volt Integrated HPWH
Refrigerant (GWP)
R-134a (GWP:1430)
Compressor low-temp cutoff
37 °F
Installation
Input voltage
240
Max current draw
21 A
Smart features
Smart / connected capable
No
Dimensions
Height
45 in
Diameter
16 in
Certification
ENERGY STAR certified
Yes
Who is the Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310UM) for?
Its 60 gallon first-hour rating suits a
household of 2–3 people under DOE sizing guidance.
Estimated running cost: about $149/year at the national
average electricity rate (879 kWh/yr certified use).
Needs a 240 V circuit; at 21 A max draw plan for a 30 A breaker (NEC 125% continuous-load rule).
The heat pump compressor operates down to 37 °F ambient — below that, backup
elements take over.
Is the Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310UM) ENERGY STAR certified?
Yes, the Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310UM) holds a current ENERGY STAR certification for water heating efficiency (UEF 3.5).
How much does the Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310UM) cost to run per year?
About $149 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 Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310UM) need?
The Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310UM) runs on a 240 V circuit drawing up to 21 A; per the NEC 125% continuous-load rule plan for at least a 30 A breaker (check the installation manual for the required circuit).
Is the Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310UM) a smart water heater?
No, the Friedrich Heat Pump 40-Gallon (PROH40 T2 FD310UM) is not connected-capable — it has no app connectivity or demand-response support.
