A. O. Smith Heat Pump 80-Gallon (HPSN10-80H45DV 2) vs Noritz ME80HPT-CN 80-Gallon

The A. O. Smith Heat Pump 80-Gallon (HPSN10-80H45DV 2) is the more efficient unit: UEF 3.88 versus 3.48 — about 10% less energy for the same hot water. At national average rates that works out to about $217/year for the A. O. Smith Heat Pump 80-Gallon (HPSN10-80H45DV 2) against $242/year for the Noritz ME80HPT-CN 80-Gallon — a $25 annual difference. The A. O. Smith Heat Pump 80-Gallon (HPSN10-80H45DV 2) delivers more hot water in the peak hour (95 gal first-hour rating vs 86 gal). Only the A. O. Smith Heat Pump 80-Gallon (HPSN10-80H45DV 2) is connected-capable (app control, utility programs).

A. O. Smith Heat Pump 80-Gallon (HPSN10-80H45DV 2) Noritz ME80HPT-CN 80-Gallon
Uniform Energy Factor (UEF) 3.88 3.48
Fuel Electric Electric
First-hour rating 95 gal 86 gal
Rated storage volume 82 gal 74 gal
Draw pattern High High
Annual electricity use 1279 kWh/yr 1424 kWh/yr
Heat pump type 240 Volt Integrated HPWH 240 Volt Integrated HPWH
Input voltage 240 240
Max current draw 22 A 23 A
Recovery efficiency 430 % 365 %
Smart / connected capable Yes No
Refrigerant (GWP) R-134a (GWP:1430) R-134a (GWP:1430)
Compressor low-temp cutoff 37 °F 35 °F
Height 69 in 74 in
Diameter 27 in 28 in
ENERGY STAR certified Yes Yes

Frequently asked questions

Which costs less to run, the A. O. Smith Heat Pump 80-Gallon (HPSN10-80H45DV 2) or the Noritz ME80HPT-CN 80-Gallon?

The A. O. Smith Heat Pump 80-Gallon (HPSN10-80H45DV 2): about $217/year versus $242/year for the Noritz ME80HPT-CN 80-Gallon at national average rates — a $25 annual difference.

Are the A. O. Smith Heat Pump 80-Gallon (HPSN10-80H45DV 2) and Noritz ME80HPT-CN 80-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.