The Noritz Tankless Advantage - Exterior Models

When it comes to quality, Noritz takes no short cuts in producing the highest quality tankless water heaters. Unlike other manufacturers, we do not outsource the main components of our heaters. We manufacture nearly 100% of the parts that go into our heaters. We even make the heat exchanger's copper tubing from raw copper. This allows Noritz to have the highest quality control of all the heater's parts and components.

  • Endless hot water and up to 40% energy savings
  • Exterior Installation
  • Manufactured for high efficiency (83-93%)
  • Clean, fresh hot water delivered at a consistent, safe temperature
  • Green advantages, including lower greenhouse gas emissions
  • Reduced risk of flooding, compared to traditional tank water heaters
  • Life span of 20 years or more
  • Natural Gas or Propane
  • Whole house or commercial water heating solution
  • Direct electronic ignition - no pilot light
  • On-Board diagnostics and safety monitoring
  • Noritz logo

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Model IDModel NameInput Range
Flow Rate
162N-0931M-OD11.0 - 250.00.5 - 11.1No100 - 180Optional24.2x18.3x9.462
165N-0751M-OD12.0 - 199.90.5 - 9.8Yes0.82100 - 180Optional23.6x13.8x9.447
167N-0631S-OD25.0 - 180.00.5 - 7.1Yes0.82100 - 160Optional23.6x13.8x6.741
2186N-0531S-OD20.0 - 140.00.5 - 6.6Yes0.83100 - 160Optional20.5x13.8x6.736
  • Heat Exchanger: 12 Years Residential, 5 Years Commercial
  • All Other Parts: 5 Years
  • Reasonable Labor: 1 Year