Senville SENWH-HP50US

It holds 47 gallons in the test, 3 gallons less than its 50-gallon sold size. Starting full, it gives 69 gallons of hot water in its first hour of use. Reheating lets it give 22 gallons beyond the 47 gallons in its tank. In the first hour, 263 of the 481 heat pump models give more hot water. The median heat pump model gives 72 gallons in the first hour of the test.

Its single model number, SENWH-HP50US, is ENERGY STAR certified. In the test, it gives 3.75 units of hot water energy per unit it uses (its UEF). Pulling heat from the air lets its UEF pass 1. Its test simulated a day of medium hot water use (its draw pattern). Among 226 heat pump models on its draw pattern, 59 have a higher UEF. For its type and draw pattern, the median UEF is 3.68. When it reheats water in the test, the water gains 430% of the energy it uses.

All of its test figures are shared by 19 other basic models. Besides this brand, 17 brands list one or more of them. You can find the whole group on the page for the 1HVAC ACIQ-50G-HP-WH.

It may qualify for 21 rebate programs in 20 states. Another 7 rebate programs may accept it if it meets their other terms.