AO Smith HPTU-50 Voltex Hybrid Electric Heat Pump 50-Gallon Water Heater

SKU: 11419



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The Voltex Hybrid Electric Heat Pump reduces water heating cost by up to 73% through an innovative design that pulls environmental heat while dehumidifying and cooling the ambient air at the same time. The HPTU-50N uses heat pump technology to deliver tremendous savings by generating heat through the heat pump technology instead of the heating elements.  In addition to the heat pump technology, this model also has two heating elements that help the water heater recover quickly during periods of high demand.


  • Increased Energy Efficiency: Improved efficiency designed to ensure available hot water at the lowest possible cost. Up to a 3.45 Uniform Energy Factor (UEF) rating which conserves energy and meets ENERGY STAR qualifications.
  • Electronic User Interface: User-friendly electronic interface allows easy control of temperature setting, operating modes and communicates diagnostics.
  • Performance in Cool Climates: This unit meets Tier 3 of the Advanced Water Heater Specification to ensure it will operate efficiently and deliver hot water even in cool climates.
  • Accessory Duct Kit: Draw intake air and/or redirect outlet air to an alternate location to allow installation in confined spaces or for improved comfort
More Information
UPC / GTIN 671657254216
Item Type Water Heater
Manufacturer AO Smith
Height (Inches) 63″
Length (Inches) 22″
Width (Inches) 22″
Diameter 22″
Water Heater Type Residential
Depth (Inches) 22″
Fuel Type Electric
Rated Storage Volume 50 Gallons
First Hour Rating 57.3 Gallons
UEF 0.93
Water Connection 3/4″ NPT
Gallons 50 Gallons
Kilo Wattage 4.5 / 4.5KW
Energy Star Yes
Weight 2.000000
Weight 300 lbs


50 gal


AO Smith HPTU-50, AO Smith HPTU-50 Manual

AO Smith HPTU-50
Download PDF
AO Smith HPTU-50 Manual
Download PDF