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This item has been discontinued and is unavailable for purchase. For more information call 1-800-GRAINGER (1-800-472-4643).

Tankless Water Heater, Natural Gas

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Unavailable for purchase, product discontinued


  • Item # 1LXD1
  • Mfr. Model # 520 HN NG
  • UNSPSC # 40101825
  • Catalog Page # 3382
  • Shipping Weight 38.5 lbs.
Country of Origin Portugal Country of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Product Details

Model has no standing pilot light and requires no battery or external power source.

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Technical Specs

  • Item Gas Tankless Water Heater
  • Type Tankless
  • Gas Connection (In.) 3/4
  • Gas Type Natural
  • Input (BTU) 117,000
  • Ignition Type Hydro-Generated
  • Draft Hood Size (In.) 5
  • Energy Factor 0.80
  • Depth (In.) 8-3/5
  • Width (In.) 16-3/4
  • Height (In.) 25-3/4
  • Water Connection (In.) 1/2
  • GPM @ 45F Rise 4.1
  • GPM @ 90F Rise 2.0
  • Manufacturers Warranty Length 15 Year Heat Exchanger And 3 Year Parts
  • Standards CSA And ANSI Z21.10.4
  • Includes Mounting Bracket
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Compliance and Restrictions

  • This product has been certified by a third party to be compliant with the “Safe Drinking Water Act” requirements for low lead in potable (human consumption - drinking and cooking) and non-potable water applications (non-human consumption).

  • View the EnergyGuide Label for this item.

Customer Reviews


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