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Rheem 608112 - RTG-64XLP - Tankless LP Gas Water Heater, Ultra Low NOx, Outdoor, 11K - 150K BTU

Item: RTG-64XP
MFR: 608112

This product is no longer available for purchase.

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Rheem RTG is a series of ultra low NOx, mid-efficiency tankless gas water heaters designed for continuous hot water

  • .82 Energy Factor with all copper heat exchanger
  • Intelligent electronic controls designed to increase energy efficiency and safety
  • Third party efficiency listed by AHRI
  • Industry First, 0.26 GPM minimum flow rate, 0.40 GPM minimum activation flow rate
  • RTG-64 for 1-2 bathroom homes*- 6.4 gal./min. at 35°F rise max., 5.6 gal./min. at 45°F rise
Self-Diagnostic System
  • Self-diagnostic system for easy installation and service
  • Digital display shows temperature setting and maintenance codes
  • Hot start programming helps minimize fluctuation in water temperature, referred to as "cold water sandwich", during periods of frequent on/off operation
  • Connects to Metal Fab. Inc., 3"/5" concentric venting without an Adaptor
  • Built-in electric blower
  • Exclusive, Guardian overheat film wrap (OFW)
  • EZ-Link cable available for higher demand applications to connect two tankless units to operate as one
  • Manifold up to six units with an optional MIC-6 manifold control board
  • Manifold up to 20 units with the optional MIC-185 plus the MICS-180 manifold control assembly
Low Emissions
  • Environmentally friendly Ultra Low NOx burner meets SCAQMD rule 1146.2 requirements
High Altitude Compliant
  • High-altitude capability - up to 9,840 ft. elevation above sea level
  • Digital remote control and 10 ft. of thermostat wire included
  • Supplied with a 120 volt power cord (indoor models only)
  • Freeze protection to -30°F
  • EZ- Spec™ Sizing Software - advanced online tool that takes the guess work out of sizing tankless applications
  • *Based on simultaneous showers using 2.5 gallons per minute. Flow rates vary depending on temperature of cold water supply.
  • 12-Year heat exchanger – Residential
  • 5-year heat exchanger – Commercial
  • 5-year parts and 1-year labor


NameRheem 608112 - RTG-64XLP - Tankless LP Gas Water Heater, Ultra Low NOx, Outdoor, 11K - 150K BTU
Gemaire Item NumberRTG-64XP
Manufacturer Product Number608112
SKU - PIM Number1407439673876
ERP Number275159
Unit of MeasureEA
Weight54.0 Pounds (Lb)
Length9.8 Inches (In)
Width13.8 Inches (In)
Height23.7 Inches (In)
Country of OriginSJM
TierMid Efficiency
BTU Input11000-150000
CertificationsCSA Certified
CertificationsAHRI Certified
Fuel TypeLP
Gas Connection3/4" [19.05 mm] N.P.T.
TypeTankless - Gas
Warranty OfferedYes
Energy Star RatedYes
ComplianceSCQAMD rule 1146.2 compliant
UL ListedNo
Product FamilyRTG
GEM - Case Quantity


Parts List