Whirlpool Hybrid Heat Pump 66-Gallon Water Heater
Whirlpool Hybrid Heat Pump 66-Gallon Water Heater Review
The Whirlpool Hybrid Heat Pump 66-Gallon Water Heater is Whirlpool's larger heat-pump variant, built by A.O. Smith with Whirlpool branding for Lowe's channel. Functionally equivalent to AO Smith Voltex Premium HPTU-66.
Specs: 66 gallons stored, integrated heat pump + 4500W backup resistance element, UEF 3.45, ENERGY STAR Most Efficient certified, 10-year tank warranty.
The 66-gallon capacity covers 4-5 person households with overlapping demand. Heat-pump operating cost about $14/month versus $58 for 66-gallon electric resistance — saves $5,000+ over 10 years.
About $1,999 at Lowe's, $2,950 installed before federal + utility rebates. After IRA Section 25C credit + utility rebates, net install cost often drops to $1,000-$2,000.
Install requirements: 750+ cubic feet of air around unit, basement or large utility room install only.