Navien Condensing Tankless Water Heater (NPE-S2)

The Navien NPE-S2 series of condensing tankless water heaters comes in various models, depending on your water heating needs. Common with all tankless water heaters, the unit provides a continuous flow of hot water and offers savings on energy and fuel. Because Navien heating boilers use condensing technology, they retain and recycle some of the heat and exhaust gasses that would be lost in more conventional units, which further improves their energy efficiency. This series has an efficiency rating of up to 0.96 UEF.

Each unit in the series is lightweight, compact, and easy to install. Plus, the EZNav™ control panel provides easy-to-understand text and icons to display things like temperature and water flow, which makes it easy to troubleshoot any issues that may arise.

The NPE-S2 series is available in four models with different flow rates:

NPE-150S2 (120K BTU, up to 6.8 gallons/minute)
NPE-180S2 (150K BTU, up to 8.4 gallons/minute)
NPE-210S2 (180K BTU, up to 10.1 gallons/minute)
NPE-240S2 (199K BTU, up to 11.2 gallons/minute)

• Cascading technology that allows you to combine several hot water heaters to meet the needs of a larger building or home, as well as to extend the life of each unit
• Dual stainless steel heat exchangers
• EZNav™ control panel with easy-to-understand text and icons to display important information about the system
• Can use an existing half-inch pipe

• Provides constantly flowing hot water and saves energy costs
• More energy-efficient than conventional water heaters (up to 0.96 UEF efficiency rating)
• Can combine several hot water heaters with cascading technology (also prolongs the life of your unit)
• Low NOx emissions
• Easy to troubleshoot with user-friendly EZNav™ control panel
• Easy to install
• Compact, space-saving design