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Rheem RTG-84XLN-1 Outdoor Natural Gas Tankless Water Heater

Special Price $799.00 Regular Price $899.00
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Rheem RTG-84XLN-1 Outdoor Natural Gas Tankless Water Heater

Rheem RTG-84XLN-1 Outdoor Natural Gas Tankless Water Heater

Rheem RTG-84XLN-1 replaces Rheem RTG-84XLN

The RTG-84XLN-1 has a 40% thicker heat exchanger and a new burner pattern.


  • Next Generation Burner Technology
  • .26 GPM Minimum Flow Rate, .40 GPM Minimum Activation Flow Rate
  • UMC-117 remote control and 10 ft of thermostat wire is included
  • Ez-Link cable available for high demand applications to connect two tankless units to operate as one
  • Manifold up to 6 units with an optional MIC-6 manifold control board
  • All Rheem models can be linked in up to 20 unit manifold installations by using the optional MIC-180 and MICS-180 manifold control assembly
  • High-altitude capability - up to 9,840 ft elevation above sea level (no chip required)
  • Guardian OFW overheat film wrap
  • All Rheem tankless models are third-party efficiency certified by GAMA
  • Continuous hot water, energy saving and compact, space saving design
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • Self Diagnostic System
  • Digital display shows temperature setting and maintenance codes
  • Built-in electric blower
  • Supplied with a 120 volt power cord
  • Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements
  • Freeze protection to -30 degrees F
  • 11,000 - 180,000 BTU max
  • Temp Range 85 - 140 degrees F
  • 8.4 gal/min at 35 degree rise max.
  • 6.7 gal/min at 45 degree rise max.
  • 3.9 gal/min at 77 degree rise max.
  • *Flow rates vary depending on temperature of cold water supply.


New Features:

  • Approved for the add on of a Rheem recirculating pump (sold separately)
  • Water saving mode
  • Maintenance mode

Limited Warranty: 12-Year on heat exchanger, 5-Year on parts, 1-Year on labor. See Residential Warranty information Brochure for complete warranty information

More Information
Weight 55.0000
Part # 671048
Manufacturer Rheem
UPC 020352671048
Category Tankless Water Heater
Voltage 120V
Power 120 V
Energy Source Natural Gas
Energy Factor .82
Flow Rate @ 35 F Rise 8.4 GPM
Flow Rate @ 45 F Rise 6.7 GPM
Water Connection 3/4 Inch
Gas Connection 3/4 Inch
Number of Bedrooms 2-3 Bedrooms
Max Heating BTU 180,000
Express Steam Standard Steam 240V/1PH
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