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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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ProLine® 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater
ProLine® 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater Model GCR-40 410
  • 40,000 BTU input
  • 80-gallon first hour rating
  • 6-Year Warranty
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ProLine® 50-Gallon Atmospheric Vent Tall Natural Gas Water Heater
ProLine® 50-Gallon Atmospheric Vent Tall Natural Gas Water Heater Model GCR-50 400
  • 40,000 BTU input
  • 84-gallon first hour rating
  • 6-Year Warranty
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ProLine® 40-Gallon Mobile Home Direct Vent Tall Natural Gas Water Heater
ProLine® 40-Gallon Mobile Home Direct Vent Tall Natural Gas Water Heater Model FMDV-40 250
  • Mobile Home Approved
  • 57-gallon first hour rating
  • 6-Year Warranty
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ProLine® 75-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater
ProLine® 75-Gallon High Recovery Atmospheric Vent Natural Gas Water Heater Model PCG-75L 400
  • 75,100 BTU input
  • 125-gallon first hour rating
  • 10-Year Warranty
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ProLine® 30-Gallon Atmospheric Vent Short Natural Gas Water Heater
ProLine® 30-Gallon Atmospheric Vent Short Natural Gas Water Heater Model GCBL-30R 400
  • 32,000 BTU input
  • 65-gallon first hour rating
  • 6-Year Warranty
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ProLine® 40-Gallon Ultra-Low Nox Atmospheric Vent Tall Natural Gas Water Heater
ProLine® 40-Gallon Ultra-Low Nox Atmospheric Vent Tall Natural Gas Water Heater Model GUR-40 450
  • 40,000 BTU input
  • 83-gallon first hour rating
  • 6-Year Warranty
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ProLine® 30-Gallon Mobile Home Direct Vent Tall Natural Gas Water Heater
ProLine® 30-Gallon Mobile Home Direct Vent Tall Natural Gas Water Heater Model FMDV-30 250
  • Mobile Home Approved
  • 60-gallon first hour rating
  • 6-Year Warranty
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ProLine® 40-Gallon Direct Vent Natural Gas Water Heater
ProLine® 40-Gallon Direct Vent Natural Gas Water Heater Model GDV-40 300
  • 38,000 BTU input
  • 64-gallon first hour rating
  • 6-Year Warranty
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ProLine® 30-Gallon Mobile Home Atmospheric Vent Natural Gas Water Heater
ProLine® 30-Gallon Mobile Home Atmospheric Vent Natural Gas Water Heater Model FMHR-30 400
  • Mobile Home Approved
  • 63-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-100 400
  • 75,100 BTU input
  • 170-gallon first hour rating
  • 10-Year Warranty
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ProLine® 50-Gallon Atmospheric Vent Tall Liquid Propane Gas Water Heater
ProLine® 50-Gallon Atmospheric Vent Tall Liquid Propane Gas Water Heater Model XCR-50L 401
  • 37,000 BTU input
  • 84-gallon first hour rating
  • 10-Year Warranty
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ProLine® 40-Gallon Gas Water Heater
ProLine® 40-Gallon Gas Water Heater Model XCRH-40 400
  • Delivers 65-gallon first hour rating
  • 35,500 BTU input atmospheric vent design delivers up to 0.59 Uniform Energy Factor
  • 10-Year Tank & Parts Warranty
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ProLine® 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater
ProLine® 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater Model GCR-40L 410
  • 40,000 BTU input
  • 80-gallon first hour rating
  • 6-Year Warranty
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ProLine® 40-Gallon Atmospheric Vent Tall Liquid Propane Gas Water Heater
ProLine® 40-Gallon Atmospheric Vent Tall Liquid Propane Gas Water Heater Model GCR-40L 411
  • 36,000 BTU input
  • 80-gallon first hour rating
  • 6-Year Warranty
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ProLine® 30-Gallon Atmospheric Vent Tall Natural Gas Water Heater
ProLine® 30-Gallon Atmospheric Vent Tall Natural Gas Water Heater Model GCR-30R 400
  • 32,000 BTU input
  • 52-gallon first hour rating
  • 6-Year Warranty
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Showing 1-15 of 97
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