Hot Water List

Arctic water heaters

2 basic models.

Certified figures by basic model

Arctic basic models and their certified figures
Basic modelTypeStorage volume (gal)UEFFirst-hour rating (gal)Recovery efficiencyModel numbers
Arctic-HP-Hot Water-KA06-50 Heat pump 453.8865412% Arctic-HP-Hot Water-KA06-50
Arctic-HP-Hot Water-KA06-80 Heat pump 714.1481458% Arctic-HP-Hot Water-KA06-80

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

Hot water out per unit of energy in, called UEF, reaches 4.14 among Arctic models. That UEF is over 1 because heat pumps move heat from air into water. The basic model with that UEF is the Arctic-HP-Hot Water-KA06-80. Each one of its basic models lists an ENERGY STAR certified model.

This brand lists one type of water heater: heat pump. Its first-hour peak, 81 gallons, comes from the Arctic-HP-Hot Water-KA06-80. Part of those 81 gallons is water warmed as the tank drains.

No other brand on this site lists any of this brand's basic model numbers.

Updated Oct 2, 2026 · Methodology