X Due to a holiday schedule, our call center will be closed today. Orders can still be placed and will go through normal processing.

You can still use our ticket support system at: ticket support.

To view our complete holiday schedule, click here

AO Smith BTR400A

BTR-400A Commercial Tank Type Water Heater Nat Gas 100 Gal Master-Fit 390,000 BTU Input

Connect With Us800-299-9470

Log In My Account My Cart0
Remodel Your Home For Less

View and share related images
View similar products
AO Smith Products
Model #:

AO Smith BTR400A

AO Smith BTR-400A Commercial Tank Type Water Heater Nat Gas 100 Gal Master-Fit 390,000 BTU Input
Rating: (Write a Review)
This product is currently unavailable.

Payment Options Why Buy From Us

Customers Also Viewed: Back To Top ↑

View More »

AO Smith Products
Quick Specs:
Brand: AO Smith
UPC: 671657957247
Stock Id: SID255877
Type: Water Heaters
Fuel Type: Natural Gas
Width: 30.25"
Height: 75.5"
Technical Details
Weight: 874 Lbs
Installation: Indoor
Warranty: 3 Yr Limited Tank
Commercial: Yes
BTU Input: 390,000
Vent Type: Type B
Vent Size: 8"
Gas Connection: 1-1/2"
Gallon capacity: 100

ProMax is an economical water heater designed for households that need an exceptional performer.


  • Commercial tank type water heater
  • Meets or exceeds the thermal efficiency and/or standby loss requirements of the U.S. department of energy and current edition of ASHRAE/IESNA 90.1
  • Electronic ignition
  • CSA certified and ASME rated T and P relief valve
  • Hand hole cleanout
  • Official powered flue damper
  • Eliminator self-cleaning feature
  • ASME construction standard
  • Recovery cap. 100°F Rise GPH: 378
  • Gallon capacity: 100
  • Input BTU/HR : 390,000
  • Warranty: 3 Year limited
  • Overall dimension: 75.5" H x 30.25" W x 30.25" D
  • Vent size: 8
  • Made in USA


  • Installation: Indoor
  • Vent Type: Type B
  • Fuel Type: Natural Gas
  • Type: Water Heaters
  • Commercial: Yes
  • Weight: 874 Lbs
  • Height: 75.5"
  • Width: 30.25"
  • Depth" 30.25"
  • Gallon capacity: 100
  • BTU Input: 390,000
  • Vent size: 8"
  • Gas Connection: 1-1/2"
  • Warranty: 3 Yr Limited Tank

AO Smith BTR400A Reviews & Ratings

5 Star:
0 Reviews
4 Star:
0 Reviews
3 Star:
0 Reviews
2 Star:
0 Reviews
1 Star:
0 Reviews
Share your thoughts with other customers:

You will need Adobe Acrobat Reader to view and print pdf files.

McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams Copying Prohibited by Law - ResellerRatings seal is a Trademark of All Enthusiast, Inc.

PriceGrabber User Ratings for AppliancesConnection.com Customer Certified by Bizrate NARI - National Association of the Remodeling Industry NKBA - National Kitchen and Bath Association
Inc. 500 Seal Security Verified Seal AppliancesConnection.com is upfront North American Home Furnishings Association Inc. 500 Nextag Seller K+BB Online