Rheem RTG-64XP Tankless Water Heater, Liquid Propane 150,000 BTU Max Direct Vent Whole House- Outdoor, 6.4 GPM

SKU: 826252
Brand: Rheem Model: RTG-64XP Condition: New

Rheem RTG-64XP Gas Tankless Water Heaters

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Save space and energy, and increase your water heating efficiency with the Rheem RTG-64XP Outdoor Tankless Water Heater, using liquid propane, for 1 or 2 Bathroom Homes. Rated at a standard of 2.5 gallons per minute, this highly functioning hot water heater can produce an astounding 6.4 gallons/minute in a one or two bathroom home!

Acting as a standalone unit or functioning with up to six other devices, the Rheem RTG-64XP Outdoor Tankless Water Heater for 1 or 2 Bathroom Homes utilizes next generation burner technology to properly facilitate all of its actions. Intelligent design means that you will save money with high energy conservation, and your home will be safe against the effects of excess power consumption.

To take full advantage of this unit’s factory warranty, the Rheem RTG-64XP Outdoor Tankless Water Heater for 1 or 2 Bathroom Homes must be professionally installed.

IMPORTANT: Must be PROFESSIONALLY INSTALLED to be eligible to receive a factory warranty

Note: Proper gas pressure must be ensured to supply tankless gas water heaters - up to 150,000 BTU for RTG-64 models. (Consult your gas supplier)

Additional Information:
Manufacturer Specification Sheet (PDF File)


• New! Next Generation Burner Technology
• Industry Best! .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
• New! Manifold up to 6 units with an optional MIC-6 manifold control board
• Exclusive! 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)
• Exclusive! 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°F


• Model: RTG-64XP
• Gas Input/BTU/HR: 11,000-150,000
• Type: Outdoor
• Temp Range: 100° - 140°
• GPM @ 77° Rise Max: 3.3
• GPM @ 45° Rise Max: 5.6
• • GPM @ 35° Rise Max: 6.4
• Gas/Water Connection: 3/4
• Dimensions: 25 5/8 H x 13 7/8 W x 8 7/8 D
• Ship Weight: 54 pds
• Energy Factor: 0.82
• D.O.E Ann. Op. Cost NAT/LP: $223/$374

Energy Factor and Average Annual Operating Costs based on D.O.E. (Department of Energy) test procedures. D.O.E. national average fuel rate natural gas $1.218/therm; LP $1.87/gallon.

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