Commercial Tankless Water Heaters from Rheem - Rheem Water Heaters

Commercial Tankless Water Heater Products

 Applies to units sold after 7.1.08

  • Indoor and Outdoor Models Available
  • Available in Natural Gas and LP Models
  • 5-Year Limited Warranty on Heat Exchanger
  • 5-Year Limited Warranty on Parts
  • 1-Year Limited Service Warranty 
  • Continuous hot water
  • Energy saving design
  • Compact, space saving design
  • Intelligent electronic controls and sensors
  • Self diagnostic program
  • Digital display shows temperature setting and maintenance codes
  • Exclusive sensing burner technology
  • Exclusive film wrap overheat limiter
  • Built-in electric blower
  • Indoor units use Category III stainless steel vent
  • Indoor models supplied with a 120 Volt power cord
  • Low NOx emissions meet SCAQMD rule 1146 requirements
  • A remote control thermostat is included with all GT Series models (100 F - 140 F setpoint range) Requires 18 AWG, 2 conductor thermostat wire for remote control connection. Wire not included.
  • Optional additional remote controls are available.
  • Commercial temperatures up to 180 F.

Spec Sheets

Commercial Indoor and Outdoor


Rheem has updated its commercial tankless Warranty for products shipped out after 7-1-08.  Below is our current tankless commercial Warranty which applies to these shipments.  Your Warranty may differ depending on when you purchased your tankless water heater.  If you have any questions regarding your tankless water heater’s Warranty, please contact customer service at 800-432-8373.

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Tankless Commercial Brochure


Available Accessories

Accessory Manuals