Rheem Liquid Propane Water Heater
Rheem RTG53PVPOB $422.47
Liquid Propane Water Heater

Liquid Propane Water Heater - Open Box

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List Price: $469.41
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This "Open Box" product is in excellent condition. Each unit is a fully functional return item with little or no cosmetic blemishes. The product has been tested for quality assurance and is certified "Open Box". All "Open Box" units include a 90 day parts & labor warranty through the original manufacturer and are not eligible for a “buyer’s remorse” return. *Note – units manufactured by Danby do not include the original manufacturer’s warranty. Please review our main “returns & refunds” page for full details.

Rheem Tankless Water Heater - Indoor, Liquid Propane

The Rheem RTG-53PVPOB liquid propane tankless hot water heater supplies 1-2 major hot water applications at a time. Unit can be vented either through the wall or roof and can be connected in series to increase hot water flow. The RTG-53PVOB tankless hot water heater can supply 5.3 gallons per minute of hot water at a 45 degree temperature rise. It requires a 3" stainless steel exhaust vent and utilizes the air within the room where the water heater is installed for the combustion air (note: consult the user's manual to determine if steps need to be taken to ensure the combustion air requirements are met). This tankless water heater carries a 10 year limited warranty on the heat exchanger and a 3 year limited warranty on parts. The ignition is electronic and the unit comes with a 120V power cord.

This model can be linked with another RTG-53PVOB in series with the EZ-Link cable (RTG-20040) for high demand applications as the two units would operate as one with double the water flow. When 3 to 20 units are connected in series a manifold controller, cables and/or control boards are required.

The RTG53PVPOB tankless hot water heater model differs from the RTG53DVP in that it has an internal combusion air setting and does not require a 2nd hose to pull air from the outside.

This model only accepts 3/5" concentric stainless steel venting.

Temperature Increase / Gallons Per Minute:
  • 90º F rise at 2.6 gpm
  • 80º F rise at 3.0 gpm
  • 70º F rise at 3.4 gpm
  • 60º F rise at 3.9 gpm
  • 50º F rise at 4.7 gpm
  • 45º F rise / 5.3 gpm

Warning: This water heater is not suitable for use in manufactured (mobile) homes!


  • Model: RTG53PVPOB
    Rheem RTG-53PVP Tankless Water Heater - Indoor, Liquid Propane
  • 5.3 gpm at a 45ºF temperature rise (up to 6.8 gpm at 35ºF)
    Guardian OFW(TM) overheat film wrap
  • Electronic ignition increases efficiency (no standing pilot light)
    Digital display on thermostat shows temperature setting and maintenance/error codes
  • Environmentally friendly Low NOx burner meets SCAQMD rule 1146 requirements
    EZ-Link(TM) cable connects two like units to operate as one, doubling capacity
  • UMC-117 remote control
    Weight: 36 pounds
  • Warranty: 3-year limited warranty on parts (10 years on heat exchanger.)