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Residential Gas Tank Water Heaters

From high-efficiency ENERGY STAR® certified water heaters to economical standard efficiency gas water heaters, A. O. Smith has a complete line of natural gas and liquid propane tank water heaters to fit your needs.

A. O. Smith
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Vertex™ 50-Gallon Ultra-Low NOx Power Direct Vent Natural Gas Water Heater
Energy Star
Vertex™ 50-Gallon Ultra-Low NOx Power Direct Vent Natural Gas Water Heater Model GDHE-50
  • ENERGY STAR® certified
  • 100-gallon first hour rating
  • 6-Year Warranty
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Vertex™ 50-Gallon Low NOx Power Vent Natural Gas Water Heater
Energy Star
Vertex™ 50-Gallon Low NOx Power Vent Natural Gas Water Heater Model GPHE-50
  • ENERGY STAR® certified
  • 124-gallon first hour rating
  • 6-Year Warranty
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Vertex™ 75-Gallon Ultra-Low NOx Power Direct Vent Natural Gas Water Heater
Energy Star
Vertex™ 75-Gallon Ultra-Low NOx Power Direct Vent Natural Gas Water Heater Model GDHE-75
  • ENERGY STAR® certified
  • 130-gallon first hour rating
  • 6-Year Warranty
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A. O. Smith water heaters are available through your local plumbing professional.
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