NPE-Standard
Certification tworows npe s
NPE-150S
condensing tankless water heater
  • ½ gas pipe capable up to 24'
  • Field convertible gas system
  • Ultra condensing efficiency
  • Dual stainless steel heat exchanges
  • Low NOx emissions (20ppm)
  • SCH 40, 2" venting up to 60'
  • Cascading capable
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NPE‑S: the inside story

Inside the NPE‑S
Npe sizing calculator
NPE SizingCalculator
Navien rebate finder
NavienRebate Finder
Installer locator
InstallerLocator
Product registration
ProductRegistration
Training
Training

Use our NPE sizing calculator

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Select the right size for your NPE
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Download the NaviSizer app

Navien Installer Locator

Find the nearest Navien Service Specialist including installers and service providers.

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Training Information

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