A.O. Smith Heat Pump Water Heaters

Credit: A. O. Smith Water Products Co.

What makes this product green?

  • Energy-conserving equipment


A.O. Smith makes heat pump water heaters, including the Voltex for residential applications as well as a line of commercial models. The Voltex Hybrid Electric contains a heat pumpHeating and cooling system in which specialized refrigerant fluid in a sealed system is alternately evaporated and condensed, changing its state from liquid to vapor by altering its pressure; this phase change allows heat to be transferred into or out of the house. See air-source heat pump and ground-source heat pump. compressor and a 60- or 80-gallon storage tank with an electric back-up heating element, so the unit can operate in heat pump, electric-resistance, or hybrid mode. This Energy StarLabeling system sponsored by the Environmental Protection Agency and the US Department of Energy for labeling the most energy-efficient products on the market; applies to a wide range of products, from computers and office equipment to refrigerators and air conditioners.-compliant unit has an energy factor of 2.4 in both heat pump and hybrid modes, according to the manufacturer. The company’s commercial units use scroll compressors and are available in models capable of providing 35,200–171,100 BtuBritish thermal unit, the amount of heat required to raise one pound of water (about a pint) one degree Fahrenheit in temperature—about the heat content of one wooden kitchen match. One Btu is equivalent to 0.293 watt-hours or 1,055 joules. /hr of water heating as well as 27,300–132,600 Btu/hr of cooling. They can be specified with polyurethane-coated stainless steel cabinet for corrosion protection. Both residential and commercial models use R-134a refrigerant.

Additional Info


  • Energy Star - Heat Pump Water Heaters

Manufacturer Information

A. O. Smith Water Products Co.
500 Tennessee Waltz Pkwy.
Ashland City, TN 37015
Fax: 615-792-2163
Toll-free: 800-527-1953

Listed in: Heat-Pump Water Heaters