Eco-Logical ECO-50HPM1A

It holds 47 gallons in the test, 3 gallons less than its 50-gallon sold size. Over one hour from a full tank, it gave 69 gallons in the test (its first-hour rating). Its tank holds 47 gallons, so reheating adds 22 gallons during the first hour. In the first hour, 263 of the 481 heat pump models give more hot water. Among heat pump models, the median first-hour rating is 72 gallons.

It is ENERGY STAR certified under its single model number. For each unit of energy it uses, 3.75 units end up in the hot water (its UEF). It moves heat from the air rather than making it, so its UEF passes 1. The daily hot water use in the test, called its draw pattern, was medium. Of 226 heat pump models with the same draw pattern, 59 have a higher UEF. For its type and draw pattern, the UEF runs from 2.59 to 4.23. Its recovery efficiency is 430%, because it takes heat from the air as it reheats water.

All of its test figures are shared by 19 other basic models. Besides this brand, 17 brands list one or more of them. For the full group, see the 1HVAC ACIQ-50G-HP-WH page.

It may qualify for 21 rebate programs. Another 7 programs may accept it if it meets their other terms.