Rinnai Luxury Tankless 180,000 BTU Exterior Water Heater

Rinnai Tankless 180,000 BTU Exterior Water Heater features greater energy efficiency and lower energy costs. Never think about your hot water needs again with 7.5 GPM. Innovative technology provides an endless supply of hot water whenever and wherever it’s needed, even for simultaneous use of fixtures. Gas or propane fuel.

  • ENERGY STAR® Qualified with 83% Efficiency
  • Applicable for both residential and commercial applications due to commercial-grade heat exchanger
  • Temperature lock function prevents accidental or unauthorized changes to water temperature
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SKU: R-180-NG-RL75EN Categories: ,

Water Heater Description

For both residential and commercial applications, the Rinnai Tankless 180,000 BTU Exterior Water Heater is capable of supplying continuous hot water to as many as five plumbing and appliance outlets simultaneously, ensuring you never run out of hot water. You’ll appreciate greater energy efficiency, lower energy costs and the simplicity of exterior installation. Enhanced scale detection lessens possibility of serious, long-term damage to unit. ENERGY STAR® Qualified. Space-saving and long-lasting water heater.

Manufacturer SKU: RL75e / REU-VC2528WD-US

Manufacturer PDF: RL75e_VC2528WD_spec_sheet_tankless_water_heater.pdf

Water Heater Specifications




Natural Gas, Propane


Tankless (whole house)

BTU Input (british thermal units)


Ignition Type

Direct Spark Ignition

Energy Star


Water Heater Warranty

Waterheaters.com will honor all warranties in accordance with manufacturer policies and procedures. Manufacturer warranty issues should be addresses directly with the manufacturer.

Residential Use: 12 yrs heat exchanger, 5 yrs parts
Commercial Use: 5 yrs limited heat exchanger, 5 yrs parts