Please ensure Javascript is enabled for purposes of website accessibility

We are closed on Friday, July 4th, 2025 for Independence Day weekend and reopening Monday July 7th, 2025. Enjoy and be safe.

  • Sign In
  • Create an Account

Need Help?   Email:

Toggle Nav
Cart Icon Cart
Search
We ship to most places in continental USA
Chat with us
Need help
Our Locations

AO Smith Commercial Gas Tank Water Heaters



17 Items

Set Descending Direction

  10. AO Smith Cyclone Series - ASME Construction Water Heaters
    Natural Gas
    Commercial Water Heater
    https://www.afsupply.com/media/attribute/swatch/swatch_thumb/110x90/w/a/warranty_logo_4.png
    3 Year Warranty
    AO Smith BTH-199A Cyclone 100 Gallon, 199 Input MBtu - 97% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty
    Retail : $15,207.00 $13,686.30
    You Save (10%)

    • AO Smith 100234872 BTH-120A Cyclone 60 Gallon, 120 Input MBtu - 95% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith BTH-150A Cyclone 100 Gallon, 150 Input MBtu - 98% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith BTH-199A Cyclone 100 Gallon, 199 Input MBtu - 97% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith BTH-250A Cyclone 100 Gallon, 250 Input MBtu - 96% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith 100234935 BTH-300A Cyclone 119 Gallon, 300 Input MBtu - 96% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith 100234946 BTH-400A Cyclone 119 Gallon, 399Input MBtu - 95% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith 100234958 BTH-500A Cyclone 119 Gallon, 499 mbTU - 95% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

  11. AO Smith Cyclone Series - BTH Water Heaters
    Natural Gas
    Commercial Water Heater
    https://www.afsupply.com/media/attribute/swatch/swatch_thumb/110x90/w/a/warranty_logo_4.png
    3 Year Warranty
    AO Smith 100234884 BTH-150 Cyclone 100 Gallon, 150 Input MBtu - 98% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty
    Retail : $12,167.00 $10,950.30
    You Save (10%)

    • AO Smith 100234868 BTH-120 Cyclone 60 Gallon, 120 Input MBtu - 95% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith 100234884 BTH-150 Cyclone 100 Gallon, 150 Input MBtu - 98% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith BTH-199 Cyclone 100 Gallon, 199 Input MBtu - 97% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith BTH-250 Cyclone 100 Gallon, 250 Input MBtu - 96% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith BTH-300 Cyclone 119 Gallon, 300 Input MBtu - 96% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith BTH-400 Cyclone 119 Gallon, 399 Input MBtu - 95% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

    • AO Smith 100234956 BTH-500 Cyclone 119 Gallon, 499 Input MBtu - 95% AFUE - Commercial Natural Gas Water Heater - Power Vent - 3 Year Warranty

  13. AO Smith Master-Fit Series - ASME Construction Water Heaters
    Natural Gas
    Commercial Water Heater
    Induced Draft
    80% Efficiency
    https://www.afsupply.com/media/attribute/swatch/swatch_thumb/110x90/w/a/warranty_logo_4.png
    3 Year Warranty
    AO Smith 100299378 BTR-500A Master-Fit 85 Gallon, 500 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty
    Retail : $21,435.00 $19,291.50
    You Save (10%)

    • AO Smith BTR-200A Master-Fit 100 Gallon, 199 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-250A Master-Fit 100 Gallon, 250 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-275A Master-Fit 100 Gallon, 275Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-365A Master-Fit 85 Gallon, 365 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-400A Master-Fit 100 Gallon, 390 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith 100299378 BTR-500A Master-Fit 85 Gallon, 500 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

  15. AO Smith Master-Fit Series - Water Heaters
    Natural Gas
    Commercial Water Heater
    Induced Draft
    80% Efficiency
    https://www.afsupply.com/media/attribute/swatch/swatch_thumb/110x90/w/a/warranty_logo_4.png
    3 Year Warranty
    AO Smith BTR-197 Master-Fit 100 Gallon,199 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty
    Retail : $8,959.00 $8,958.00

    • AO Smith BTR-251 Master-Fit 65 Gallon Commercial, 251 Input MBtu Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-305 Master-Fit 65 Gallon, 305 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith 100119069 BTR-120 Master-Fit 71 Gallon, 120 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-154 Master-Fit 81 Gallon, 154 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-180 Master-Fit 81 Gallon, 180 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-199 Master-Fit 81 Gallon, 199 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-365 Master-Fit 85 Gallon, 365 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith 100299375 BTR-500 Master-Fit 85 Gallon, 500 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-197 Master-Fit 100 Gallon,199 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-200 Master-Fit 100 Gallon, 199 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-250 Master-Fit 100 Gallon, 250 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith BTR-275 Master-Fit 100 Gallon, 275 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty

    • AO Smith 100119318 BTR-400 Master-Fit 100 Gallon, 390 Input MBtu Commercial Natural Gas Water Heater - 3 Year Warranty
per page

Shop By
Shopping Options
Gallons Range
Fuel Type
BTU Input Range
Product Group Name
Water Heater Type for Top Filters
Discount% Range
Series

By using this site you agree to our Terms, Conditions of Use and Privacy Statement © 2025 AF Supply Corp. All Rights Reserved.