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Rheem Products

Rheem RTG84XP

RTG84XP Outdoor Whole House Tankless Water Heater, 8.4 GPM Liquid Propane


Items that are currently in-transit to our warehouse, are currently in-stock at a drop-ship vendor’s, or manufacturer's warehouse will be marked as "Available". These products will ship once your order is processed (usually within 24-48 business hours). For any exceptions to this timeframe, an ETA (Estimated Time of Arrival) for your order will be emailed with accurate shipping dates in order to ensure that you are always updated and informed as to when your order will arrive at its final destination.

Quick Specs: View More

  • Energy Star: Yes

Enter zip code for delivery ETA and promotions:

Discontinued No longer available.

Includes Outdoor Natural Gas Tankless Water Heater for 2-3 Bathroom Homes Available at AppliancesConnection


  • 6.7 GPM at a 45 degrees F temperature rise (up to 8.4 GPM at 35 degrees F)
  • Exclusive! Guardian SBT sensing burner technology
  • Next generation burner technology
  • Exclusive! Guardian OFW overheat film wrap
  • Digital display on thermostat shows temperature setting and maintenance/error codes


  • Depth:  9.875"
  • Direct Vent:  No
  • Duct Size:  Ductless
  • Energy Star:  Yes
  • Gas Connection:  0.75
  • Hardwired:  Yes
  • Height:  25.625"
  • Ignition Type:  Electronic
  • Indoor Installation:  No
  • Low Lead Compliant:  Yes
  • Manifolding:  Yes
  • Maximum Flow Rate:  8.4
  • Maximum Gas Input:  180000
  • Maximum Temperature:  140
  • Minimum Flow Rate:  0.26
  • Minimum Gas Input:  11000
  • Outdoor Installation:  Yes
  • Plug In:  Yes
  • Water Connection:  0.75
  • Width:  13.875"

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  • Brand:Rheem
  • UPC:020352591445
  • Stock Id:231234
  • Product Number:RTG84XP


  • Fuel Type:Liquid Propane


  • Width:13.875"
  • Depth:9.875"
  • Height:25.625"

    Technical Details

  • Energy Star:Yes
  • Ignition Type:Electronic
  • Duct Size:Ductless
  • Direct Vent:No
  • Maximum Flow Rate:8.4
  • Gas Connection:0.75
  • Maximum Gas Input:180000
  • Maximum Temperature:140
  • Minimum Flow Rate:0.26
  • Minimum Gas Input:11000
  • Hardwired:Yes
  • Weight:57.00 lbs