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Rheem Commercial Hot Water Supply Heater GBC331

SKU: 392844

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Product Details

Rheem 392844

GBCP331-O


Hot water supply heaters are designed for applications that require high inputs and large volumes of stored hot water. Rheem hot water supply heaters are designed to provide hot water service to a variety of commercial applications when used in conjunction with an appropriately sized storage tank. Choose from 82 percent thermal efficiency models that range from 136000-1826000 Btu/h and have maximum temperature setting of 180 deg F. Applications include outdoor installation and for use with or without a circulating pump.


  • UPC 020352392844
  • Online Product ID 5601933
  • Width 25.25"
  • Height 40"
  • Oversized yes
  • Flow Rate (GPM) 42 gal/min
  • Voltage 120v
  • Warranty 1 year on Tank and Parts, 5 years on Heat Exchanger
  • Sink Length 33.00"
  • Fuel Type Natural Gas
  • Application Commercial
  • Cold Water Inlet Size 1.5''
  • Current Rating 3.6 A
  • Heating Capacity 334000 Btu/hr
  • Hot Water Outlet Size 1.5''
  • Ignition Type Electronic Intermittent Pilot
  • Includes Circulating Pump
  • Install Location Outdoor
  • Maximum Working Pressure 160 psi
  • Recovery Rate At 100 Deg F 329 gph
  • Safetylist CSA Certified, LHW Certified, CO2 Reduction
  • Thermal Efficiency 82 percent
  • Shipping x W:29.00"x H:43.00" 290.00 lbs.

Additional information

  • Reliable heat exchanger design - the all copper heat exchanger is a single bank, straight-through design with a floating return header immune to thermal shock
  • Energy saving pump control - the energy saving pump control is an electric device that allows the operator to set the desired time for the pump to run after the water heater shuts off
  • Compact design - the low water heater mass design offers substantial savings in weight and cube over most cast iron, steel tube and storage type water heaters making it ideal for rooftop installations and in tight quarters
  • Spark-to-pilot (IID)- this system is standard on all models for minimal heat loss
  • Glass lined cast iron headers - these headers handle any aggressive water conditions

About This Brand

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