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NPE-210S2 – Condensing Tankless Water Heater – 180,000 BTU
NPE-210S2 – Condensing Tankless Water Heater – 180,000 BTU
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Navien NPE-210S2Condensing Tankless Water Heater · 180,000 BTU
A high-efficiency condensing tankless water heater designed to deliver continuous hot water in both residential and commercial settings, with powerful, energy-saving performance.
Uses dual stainless steel heat exchangers for long-term durability and ultra condensing operation. Supports cascading with up to 16 units via Navien's Ready-Link® technology and allows common venting with up to 12 units, providing installation flexibility across a range of applications.
Technical specification
| Input range | 12,000 to 180,000 BTU/h |
|---|---|
| Efficiency | 0.96 UEF, ENERGY STAR certified |
| Flow rate | Up to 10.1 GPM at 35°F rise |
| Heat exchangers | Dual stainless steel, ultra condensing |
| Emissions | Low NOx (20 ppm) |
| Fuel | Field convertible — natural gas or propane (kit included) |
| Installation | Indoor or outdoor, wall-hung (outdoor cap required) |
| Controls | EZNav™ multi-line panel with built-in HotButton™ recirculation control |
| Remote access | NaviLink™ compatible |
| Cascading | Up to 16 units via Ready-Link®; common venting up to 12 units |
| Gas piping | 1/2″ gas line capable up to 24 ft |
| Venting | 2″ up to 75 ft, 3″ up to 150 ft |
| Elevation | Operates at elevations up to 10,100 ft |
Applications
Residential & Commercial
Residential and commercial water heating.
Multi-Bathroom Homes
Multi-bathroom homes or light commercial buildings.
Limited-Space Installs
Indoor or outdoor installations with limited space.
High-Efficiency Upgrades
High-efficiency upgrades or replacements.
Multi-Unit Systems
Systems needing cascade or common venting capability.
Key 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
Navien NPE-210S2 condensing tankless water heater. Follow the installation manual, venting requirements, local gas and plumbing codes, and manufacturer instructions.
