The ENERGY STAR® certified Voltex® MAX Smart Hybrid Electric Heat Pump water heater can deliver larger volumes of hot water using innovative smart valve technology with Hot Water+ for up to 40% more hot water. The HPTA-66 provides peace of mind with smart sensor leak detection, automatic water shutoff, and 10-year limited tank and parts warranty.

4x more efficient, the HPTA-66 heat pump delivers savings by using heat from the surrounding air to heat water; saving up to $600 per year on operating costs compared to standard electric water heaters of similar capacity. This model features a 66-gallon (nominal) tank with a 3.84 Uniform Energy Factor (UEF) and Northwest Energy Efficiency Alliance (NEEA) Tier 3 qualified.

Premium features including vacation mode and guest mode save you money by adjusting to hot water demand in the home. Two heating elements enable the water heater to recover quickly during periods of high demand.

A. O. Smith Voltex® MAX heat pump water heaters are residential products built to commercial-grade standards. The Voltex® MAX has advanced tank protection, including a stainless steel CoreGard™ anode rod, Blue Diamond® glass lining, and DynaClean™ automatic sediment-cleaning—designed to help protect the tank from the corrosive effects of water and extend the life of the water heater.

A. O. Smith Voltex® MAX heat pump water heaters are residential products built to commercial-grade standards.

*Comparing 80-gallon Voltex® MAX heat pump against pre-2015 similarly-sized standard electric using DOE EF to UEF conversion rates and $0.14 per kWh electricity cost. Savings may vary.

• ENERGY STAR® certified with up to 3.84 UEF rating
• Delivers 83-gallon first hour rating with the assistance of dual 4,500-watt copper heating elements.
• Delivers up to 40% More Hot Water—Choose from three Hot Water+ levels for up to 40% more hot water than a standard heat pump
• Smart Leak Protection Technology—Smart technology detects, alerts and notifies to help protect your water heater in the event of a leak. Also compatible with an optional automatic, cold water shut-off valve.
• High-Efficiency & Lower Costs—4X more efficient, save up to $600 per year or $6,000 over 10 years in energy costs*
• Whisper-Quiet Operation at 45 dBA
• User-Friendly, Easy To Control—Easily set up alerts/notifications with built-in iCOMM™ Smart Connectivity and a free downloadable app.
• Up to $1,800 in Local Utility Rebates may be available in your area—see rebate finder for details
• Flexible Design—Includes top water connection and zero clearance requirements on side and back
• 10-year limited tank and parts warranty