Rheem GHE100-200 100 Gallon Natural Gas Commercial Water Heater with 199000 Max BTU Input

- Item #: BCI2143229

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The SPIDERfire ® series puts technological breakthroughs to work to deliver 95% thermal efficiency. Rheem's patented heat transfer system dramatically cuts fuel cost and is built to last. The system is engineered as a 'wet base' design wherein the entire heat exchanger is submerged. Where other fully condensing water heaters typically experience hot spots, this system eliminates them. The result is extended life of the product and maximized efficiency. The three-pass heat exchanger tubes are coated inside and out with a specially formulated porcelain enamel designed to protect against condensation.

Venting Options

With SPIDERfire ® you have a choice of venting. Installed with either power-vent or power direct vent. The power direct vent is the recommended choice where negative air pressure or indoor air quality is a concern.

More Venting Options (And Savings)

How? Because more heat is delivered to the water the flue gases are cooler. Cool enough to permit venting through standard PVC, CPVC and ABS pipe, which is cheaper than AL29-4C Stainless steel.

Multiple Water Connections

Water connections are easy with 2" NPT hot and cold water connections on both sides of the unit.

Smart LCD Control System

Standard equipment on all the SPIDERfire ® models is the new diagnostic system. It features a scrollable operational history and enables installers and service technicians to monitor key functions and components.

Faster draining and servicing

Factory installed full-port, full-flow brass drain valve.

Advanced Burner Design

Rheem has increased the burner surface are to provide ultra smooth ignition and quiet operation.

Direct Spark-to-Pilot Ignition Systems

Energy saving ignition that ignites only when there is a call for heat.


  • Tank Capacity: 100 Gallons
  • Thermal Efficiency: 95%
  • Performance:
    • Recovery at 60 degree rise: 382 Gallons/Hour
    • Recovery at 70 degree rise: 327 Gallons/Hour
    • Recovery at 80 degree rise: 286 Gallons/Hour
    • Recovery at 90 degree rise: 255 Gallons/Hour
    • Recovery at 100 degree rise: 229 Gallons/Hour
  • Max BTU Input: 199000
  • Warranty: 3 Year Limited Tank
  • Altitude Certification: 8999 ft. above sea level

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 GHE100-200

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

  • Rheem GHE100-200

*Denotes a finish or option that has been discontinued

Rheem GHE100-200 Product Specifications

Specification Sheet
Installation Sheet
ANSI Approved Yes
Altitude Certification 8999
Capacity (Gallons) 100
Fuel Type Natural Gas
Gas Connection 1/2"
Height to Gas Connection 73.75
Height to Temperature and Pressure Relief Valve 66.4375
Max BTU Input 199000
Minimum Clearance Rear 0
Minimum Clearance Side 0
Minimum Clearance Top 6
Minutes to Recover Contents 26
Recovery 255
Required Vent Size 2", 3", 4"
Series SPIDERfire ®
Shipping Weight 765
Tank Height 78.75
Thermal Efficiency 95
Voltage 120
Warranty 3 Year Limited Tank
Water Connection 2"
Water Pressure (Max) 150

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.

Buy the Rheem GHE100-200 at Build.com. Research Rheem GHE100-200 online. Find Rheem GHE100-200 features and specifications. Get the best deal by comparing the Rheem GHE100-200 today.

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