A. O. SMITH ProLine Atmospheric Vent 40-Gallon Tall Natural Gas Water Heater

• The Proline 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater Is Designed To Deliver An Economical Performance That Can Lower Your Energy Bills And Also Provide Long-Lasting Value.
• Mechanical Valve
• Delivers 80-gallon first hour rating
• 40,000 BTU input atmospheric vent design delivers up to 0.64 Uniform Energy Factor
• Patented eco-friendly Green Choice Gas Burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements
• Push-button piezo ignitor makes lighting pilot fast & easy
• Intelligent electronic gas control provides precise temperature control and LED status indicator
• Patented Blue Diamond glass tank lining protects against corrosion
• DynaClean automatic cleaning system protects against sediment build-up
• Stainless steel Coregard anode rod protects against corrosion longer than ordinary anodes
• Commercial-grade brass drain valve for durable and easy operation
• 6-year limited tank and parts warranty
• Mfg #100290905
• The Proline 40-Gallon Atmospheric Vent Tall Natural Gas Water Heater Is Designed To Deliver An Economical Performance That Can Lower Your Energy Bills And Also Provide Long-Lasting Value.
• Mechanical Valve
• Delivers 80-gallon first hour rating
• 40,000 BTU input atmospheric vent design delivers up to 0.64 Uniform Energy Factor

A. O. SMITH ProLine Atmospheric Vent 50-Gallon Tall Natural Gas Water Heater

• Delivers 81-Gallon First Hour Rating
• Mechanical Valve
• 40,000 BTU input atmospheric vent design delivers up to 0.62 Uniform Energy Factor
• Patented eco-friendly Green Choice Gas Burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements
• Push-button piezo ignitor makes lighting pilot fast & easy
• Intelligent electronic gas control provides precise temperature control and LED status indicator
• Patented Blue Diamond glass tank lining protects against corrosion
• DynaClean automatic cleaning system protects against sediment build-up
• Stainless steel Coregard anode rod protects against corrosion longer than ordinary anodes
• Commercial-grade brass drain valve for durable and easy operation
• 6-year limited tank and parts warranty
• Mfg #100290412
• Delivers 81-Gallon First Hour Rating
• Mechanical Valve
• 40,000 BTU input atmospheric vent design delivers up to 0.62 Uniform Energy Factor
• Patented eco-friendly Green Choice Gas Burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements

A. O. SMITH ProLine Atmospheric Vent 40-Gallon Short Natural Gas Water Heater

• Delivers 67-Gallon First Hour Rating
• 40,000 BTU input atmospheric vent design delivers up to 0.58 Uniform Energy Factor
• Patented eco-friendly Green Choice Gas Burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements
• Push-button piezo ignitor makes lighting pilot fast & easy
• Intelligent electronic gas control provides precise temperature control and LED status indicator
• Patented Blue Diamond glass tank lining protects against corrosion
• DynaClean automatic cleaning system protects against sediment build-up
• Stainless steel Coregard anode rod protects against corrosion longer than ordinary anodes
• Commercial-grade brass drain valve for durable and easy operation
• 6-year limited tank and parts warranty
• Mfg #100327546
• Delivers 67-Gallon First Hour Rating
• 40,000 BTU input atmospheric vent design delivers up to 0.58 Uniform Energy Factor
• Patented eco-friendly Green Choice Gas Burner design reduces NOx emissions by up to 33% and complies with Low-NOx emission requirements
• Push-button piezo ignitor makes lighting pilot fast & easy