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.

We ship to most places in continental USA
Chat with us
Need help
Our Locations

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

SKU
SMIBTR400

In Stock. Ships in 1-7 Business Days.

Retail : $17,372.00 - $1737.2 =
$15,634.80 You Save (10%)
- +

Product details

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

Product Features:
    BTR-400 Water Heater Specifications
  • Gallon Capacity - 85 Gallons
  • Recovery Capacity GPH 100¬ Rise - 387
  • Vent Size (inches) - 8
  • Input BTU/HR - 390,000
  • Height to Vent (inches) - 75 1/2
  • Diameter (inches) -30 1/4
  • ASME Construction
  • Three year Limited Tank Warranty


  • Codes and Standards
  • Design-certified by UL, according to ANSZ21.10.3 - CSA 4.3 standards governing storage-type water heaters
  • Meets ASHRAE/IESNA 90.1-1999
  • Design-certified by Underwriters Laboratories Sanitation to NSF Standard 5 for 180¬F water
  • Optional ASME tank construction available

AO Smith Commercial Master-FIT® BTR Water Heater

MASTER-FIT® BTR

The Master-Fit BTR series provides outstanding performance and maximum installation flexibility for both new construction and replacement applications. Multiple options for placement of water connections and low installation clearances are additional installer-friendly features

    FACTORY-INSTALLED DRAFT DIVERTER AND AUTOMATIC FLUE DAMPER
    • Low-profile draft diverter helps for installation in tight spaces
    • Automatic motorized flue damper helps minimize standby heat loss
    • BTR-500 Model features induced draft design and no damper
    THREE WATER CONNECTION OPTIONS FOR ADDED FLEXIBILITY
    • Hot and cold water connections can be made through front, top or back of unit
    • Eliminatorâ„¢ system operates when cold water is connected through front
    PERMAGLAS® ULTRA COAT™ GLASS LINING
    • Exclusive process provides superior protection against corrosion
    • CoreGardâ„¢ anode rods with stainless steel cores provide additional corrosion protection
    INTERMITTENT ELECTRONIC IGNITION
    • Eliminates standing pilot, saves energy
    • Includes power ON/OFF switch
    • Provides flame failure response in less than one second
    THE ELIMINATORâ„¢ SELF-CLEANING SYSTEM
    • Designed to significantly reduce or eliminate sediment build-up inside the tank
    • Reduced sediment build-up maintains rated thermal efficiency and reduces water heating costs
    • Self-cleaning system maximizes tank life

    MECHANICAL VENTING KITS

    • For BTR-120 through BTR-200, Part Number 100110445
    • For BTR-250 through BTR-400, Part Number 100109235
    • For installation of approved power venter to operate in conjunction with water heater thermostat
    • Field wiring should conform to latest version of the National Electric Code ANSI/NFPA No.70
    FULLY AUTOMATIC CONTROL SYSTEM
    • Manual-reset gas shut-off device prevents excessive water temperature
    • Adjustable thermostat with 120ºF — 180ºF range
    • Gas pressure regulator and pilot filter
    WARRANTY
    • 3-Year Limited Tank and 1-Year Limited Parts Warranty
AO Smith
See All AO Smith Products

Specification Sheet

Basic Information
MPN ? Manufacturer Part Number 100119318
UPC / GTIN 671657957001
Manufacturer AO Smith
Series ? A manufacturer's grouping of items that match, coordinate, or complement each other. Master-Fit
Dimensions and Measurements
Height (Inches) ? The vertical measurement from bottom to top, measured in inches. 75-1/2"
Width (Inches) ? The horizontal measurement from left to right, measured in inches. 30-1/4"
Depth (Inches) ? Depth 30-1/4"
Gallons 100 Gallons
Vent Size (Inches) 8"
BTU Input 390,000
Weight ? Weight 875.00
Characteristics and Features
Warranty ? The terms and conditions of the warranty provided for the product from the manufacturer. 3 Years
Water Heater Type Commercial
Type Tall
Water Connection Location Top
Venting Type Atmospheric Vent
Fuel Type Natural Gas
Energy Star No
Warranty and Product Information
Product Warranty 3 Years Tank / 1 Year Parts Warranty
More from AO Smith
Document

Click Here to Explore All Tank Water Heaters



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