Hot Water List

DIYCOOL water heaters

2 basic models and 2 listed models.

Certified figures by basic model

DIYCOOL basic models and their certified figures
Basic modelTypeStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyModel numbers
ACIQ-50G-HP-WH Heat pump 473.7569430% ACIQ-50G-HP-WH
ACIQ-80G-HP-WH Heat pump 744.0091450% ACIQ-80G-HP-WH

A range means the models under one basic model differ. A dash means the model has no such figure.

This brand's highest UEF, the energy that reaches the water for each unit used, is 4.00. That UEF is over 1 because heat pumps move heat from air into water. That UEF belongs to the ACIQ-80G-HP-WH, a heat pump model. This brand has an ENERGY STAR certified model number in each of its basic models.

This brand's whole range is one type: heat pump. Its first-hour peak, 91 gallons, comes from the ACIQ-80G-HP-WH. Those 91 gallons include water the tank heats while the hour runs.

Among the 117 brands on this site, 73 list more model numbers than DIYCOOL. At least one of its basic model numbers appears under each of 4 other brands. The brand that lists the most of them is 1HVAC, at 2.

Basic models shared with other brands

DIYCOOL basic models also listed under another brand
BrandShared basic models
1HVAC2
ACIQ2
PolarWave2
STEALTH2

Updated Oct 17, 2026 · Methodology