NPE-210S2 Condensing Tankless Water Heater

Navien NPE-210S2 - Condensing Tankless Water Heater - 180,000 BTU

The Navien NPE-210S2 is a high-efficiency condensing tankless water heater designed to deliver continuous hot water in both residential and commercial settings. With input capacity ranging from 12,000 to 180,000 BTU/h and a Uniform Energy Factor of 0.96, it provides powerful, energy-saving performance. It delivers up to 10.1 gallons per minute at a 35°F rise and is ENERGY STAR certified for its high efficiency. Compact and wall-mounted, it installs indoors or outdoors and includes a field-convertible gas system with a conversion kit.

This model uses dual stainless steel heat exchangers for long-term durability and ultra condensing operation. It supports cascading with up to 16 units via Navien’s Ready-Link® technology and allows common venting with up to 12 units. The NPE-210S2 includes the EZNav™ multi-line control panel and built-in HotButton™ recirculation control, and it’s compatible with remote access via NaviLink™. It operates at elevations up to 10,100 feet and can use a 1/2" gas line for runs up to 24 feet, providing installation flexibility across a range of applications.

Features

• 180,000 BTU/h input with 0.96 UEF

• Up to 10.1 GPM at 35°F temperature rise

• Dual stainless steel heat exchangers

• Ultra condensing efficiency

• Low NOx emissions (20 ppm)

• ENERGY STAR certified

• Field convertible gas system (NG or LP, kit included)

• Indoor or outdoor wall-hung installation (outdoor cap required)

• EZNav™ multi-line control panel

• Built-in HotButton™ for recirculation control

• Cascading capable (up to 16 units)

• Common venting up to 12 units

• 1/2" gas line capable up to 24 feet

• Vent lengths: 2" up to 75 ft, 3" up to 150 ft

• Remote control capable (NaviLink™ compatible)

• Operates at elevations up to 10,100 ft

Applications

• Residential and commercial water heating

• Multi-bathroom homes or light commercial buildings