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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™ 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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ProLine® XE 75-Gallon Power Direct Vent Natural Gas Water Heater
ProLine® XE 75-Gallon Power Direct Vent Natural Gas Water Heater Model GPDX-75L
  • 76,000 BTU input
  • 129-gallon first hour rating
  • 6-Year Warranty
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ProLine® XE 75-Gallon Power Vent Natural Gas Water Heater
ProLine® XE 75-Gallon Power Vent Natural Gas Water Heater Model GPVX-75L
  • 76,000 BTU input
  • 116-gallon first hour rating
  • 6-Year Warranty
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ProLine® 100-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater
ProLine® 100-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater Model PCG-100
  • 75,100 BTU input
  • 170-gallon first hour rating
  • 10-Year Warranty
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ProLine® 100-Gallon Ultra-Low NOx High Recovery Gas Water Heater
ProLine® 100-Gallon Ultra-Low NOx High Recovery Gas Water Heater Model GCN-100
  • 75,100 BTU input
  • 81-gallon first hour rating
  • 6-Year Warranty
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ProLine® 100-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater
ProLine® 100-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater Model FCG-100
  • 75,100 BTU input
  • 170-gallon first hour rating
  • 6-Year Warranty
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