Rheem G100-80 100 Gallon Natural Gas Commercial Water Heater 80000 Max BTU Input

- Item #: BCI2143216

Offer Ends

Originally $2,411.34, You Save 20%
Free Shipping!
0 In Stock
Out of Stock


Please select a finish

Earn 1,929 points with the purchase of this product Learn More

and earn 350pts

Questions about Rheem G100-80?

Contact us for advice or more details. Our product specialists are here to help.

Universal Medium Duty Collection Commercial Natural Gas Water Heater with 100 Gallon Tank 80000 Max BTU Input

The Universal Medium Duty collection of water heaters is an excellent choice for commercial retrofits. Specifically designed to fill the needs for small restaurants, offices, apartments, and more. Its compact size simplifies installations.

Minimize Down Time

Factory installed brass drain valve features full-port, full flow which allows faster draining and servicing. Magnesium anode rod ensures corrosion resistance for longer tank life.

Automatic Controls

If the pilot flame is extinguished the automatic control system is designed to shut off the gas. Relighting is a safe, easy procedure. Built-in gas pressure regulator assures even gas flow. Thermostat settings to 160 degrees F.


  • Ideal for Retrofits, Small Restaurants, Offices, Apartments, and More
  • Maximum Temperature Setting: 160 Degrees F
  • Water Inlets: Top, Front, and Rear
  • Water Outlets: Top, Front, and Rear
  • Stainless Steel Burner
  • Multiple Magnesium Anode Rods
  • Factory Installed Full-Port, Full Flow Brass Drain Valve


  • Tank Capacity: 100 Gallons
  • Thermal Efficiency: 80%
  • Performance:
    • Recovery at 60 degree rise: 129 Gallons/Hour
    • Recovery at 70 degree rise: 111 Gallons/Hour
    • Recovery at 80 degree rise: 97 Gallons/Hour
    • Recovery at 90 degree rise: 86 Gallons/Hour
    • Recovery at 100 degree rise: 78 Gallons/Hour
  • Max BTU Input: 80000
  • Warranty: 3 Year Limited Tank

Rheem has been manufacturing water heaters since the 1930's, with coast to coast distribution by 1936. Their product offerings cover commercial and residential heating, cooling, solar water heating systems, conventional storage-style water heaters, tankless water heaters, replacement parts and accessories. Rheem's manufacturing facilities are ISO 9001 certified, with four facilities in the United States. Choose an industry leader that is respected for reliability. Choose Rheem.

Additional Rheem Links

Our SKU: Rheem G100-80

This product is listed under the following manufacturer number(s):

  • Rheem G100-80

*Denotes a finish or option that has been discontinued

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Rheem G100-80 Reviews

Buy the Rheem G100-80 at Build.com. Research Rheem G100-80 online. Find Rheem G100-80 features and specifications. Get the best deal by comparing the Rheem G100-80 today.

Recently viewed items
× Shipping Rates & Methods

The cost to ship items varies by item, shipment and shipping option.

Free Ground Shipping on Orders Over $49 *

Standard ground shipping transit time is 5-7 business days.

Free Freight Shipping on Orders Over $1500 *

Curb side delivery (also called freight or "LTL" shipping) is reserved for large, heavy, or oversized items like chandeliers, bathtubs, shower doors, etc. Items are palletized and loaded onto a large truck for shipment, and delivered to your curb by scheduled appointment. Transit time is 7-10 business days.

* For exact shipping costs, add the product(s) to your cart and enter your zip code. All offers pertain to the lower 48 states and do not include deliveries to Alaska, Hawaii or Canada.

Learn more about shipping rates and policies