Rheem G100-400A Universal 100 Gallon Commercial 399900 BTU ASME Water Heater – Wholesale Water Heater
Find a Replacement Enter your model number
Top Bar
Estimated Delivery
Contact us for the delivery timeframe for this product.

RHEEM G100-400A Universal 100 Gallon Commercial 399,900 BTU ASME Water Heater Natural Gas

  • Brand Rheem
  • Model:G100-400A
  • Availability Drop Ship
  • SKU G100-400A

Commercial 100 Gallon Universal 399,900BTU Natural Gas Water Heater; Brand: Rheem; Model #: G100-400A; Series: Rheem Universal; Automatic Flue Damper; Direct Spark-to-Pilot Ignition System; 3-Year Limited Tank Warranty; Space Saver Design; Used in Motels, Hotels, Gyms, Schools, Restaurants, and Businesses. 

  • 100 galTank Capacity
  • 399,900 BTUInput BTU
  • Natural GasFuel Type
  • 0.8Efficiency
  • Atmospheric VentVenting
  • 76" H × 30-1/4" Dia.Dimensions

Need Help?

Talk to our commercial support team.
Hablamos Español!

(248) 892-1000

Find a Replacement

Find the right replacement for your current model.

Find My Replacement

Product Resources

Manuals, specifications and product documents.

View Documents

Commercial Purchasing Support

Get help with sizing, product selection and ordering.

Contact UsShipping FAQs

Brand Rheem
Model G100-400A
Warranty 3 Years
Fuel Type Natural Gas
Weight 810 lbs
Gallons 100 gal
BTU 399,900 BTU
Efficiency 0.8
Height 76"
Diameter 30-1/4"
Vent Size 8"
Vent Type Atmospheric Vent

Brand Model BTU/h Gal. Efficiency Dia. Height
American BCG3-100T380-8N 399900 100 0.8 30-1/4" 75-1/2"
A.O. Smith BTR-400A 399900 100 0.8 30-1/4" 75-1/2"
Bradford White D-80L-399-3NA 399999 80 0.8 30-1/4" 71-1/2
Lochinvar CGN 400 100A 399000 100 0.8 30-1/4" 75-1/2"
State SBD100 390NEA 399000 100 0.8 30-1/4" 75-1/2"

  • Same-day shipping or pickup available
  • Fastest shipping online
  • Free shipping with liftgate

Our Customers Say It Best