Friedrich Heat Pump 65-Gallon (PROH65 T2 FD400-30) vs LG APHWC502M 50-Gallon

The LG APHWC502M 50-Gallon is the more efficient unit: UEF 4.2 versus 4.05 — about 4% less energy for the same hot water. The LG APHWC502M 50-Gallon delivers more hot water in the peak hour (81 gal first-hour rating vs 75 gal).

Friedrich Heat Pump 65-Gallon (PROH65 T2 FD400-30) LG APHWC502M 50-Gallon
Uniform Energy Factor (UEF) 4.05 4.2
Fuel Electric Electric
First-hour rating 75 gal 81 gal
Rated storage volume 59 gal 53 gal
Draw pattern High High
Annual electricity use 1184 kWh/yr 1181 kWh/yr
Heat pump type 240 Volt Integrated HPWH 240 Volt Integrated HPWH
Input voltage 240 240
Max current draw 21 A 24 A
Recovery efficiency 457 % 440 %
Smart / connected capable No No
Refrigerant (GWP) R-134a (GWP:1430) R-134a (GWP:1430)
Compressor low-temp cutoff 37 °F 23 °F
Height 64.2 in 47.6 in
Diameter 24.3 in 19.7 in
ENERGY STAR certified Yes Yes

Frequently asked questions

Which costs less to run, the Friedrich Heat Pump 65-Gallon (PROH65 T2 FD400-30) or the LG APHWC502M 50-Gallon?

They are effectively tied: both cost about $201/year at national average energy rates under the DOE test draw pattern.

Are the Friedrich Heat Pump 65-Gallon (PROH65 T2 FD400-30) and LG APHWC502M 50-Gallon both ENERGY STAR certified?

Yes — every water heater in this database is drawn from the U.S. EPA ENERGY STAR certified water heater datasets.