Description
Navien NPE-240A2Condensing Tankless Water Heater · 199,000 BTU
A high-capacity, high-efficiency condensing tankless water heater engineered for residential and light commercial applications, delivering reliable and continuous hot water.
Features Navien’s patented ComfortFlow® system with a built-in recirculation pump and buffer tank to eliminate temperature fluctuations and minimize hot water wait time. Dual stainless steel heat exchangers enhance durability, while the EZNav™ control panel simplifies setup and operation.
Technical specification
| Input range | 13,300 to 199,900 BTU/h |
|---|---|
| Efficiency | 0.95 UEF |
| Flow rate | Up to 11.2 GPM at 35°F rise |
| Heat exchangers | Dual stainless steel |
| Recirculation | Built-in ComfortFlow® pump and buffer tank |
| Emissions | Low NOx (20 ppm) |
| Fuel | Field convertible — natural gas or propane (kit included) |
| Installation | Indoor or outdoor, wall-hung |
| Controls | EZNav™ multi-line panel with built-in HotButton™ |
| Cascading | Up to 32 units; common venting up to 12 units |
| Gas piping | 1/2″ gas line compatible up to 24 ft |
| Venting | 2″ up to 75 ft, 3″ up to 150 ft |
| Connections | 3/4″ NPT gas and water |
| Safety | Electronic ignition and Vent Installation Detector (VID) |
Applications
High-Demand Homes
Residential homes with high hot water demand.
Light Commercial
Facilities needing continuous hot water.
Retrofits & Upgrades
Retrofits or upgrades to high-efficiency systems.
Indoor or Outdoor
Wall-mounted installations, indoor or outdoor.
Cascade Setups
Multi-unit buildings or large households.
Key features
- 199,900 BTU/h input with 0.95 UEF
- Flow rate: up to 11.2 GPM at 35°F rise
- Dual stainless steel heat exchangers
- Built-in ComfortFlow® recirculation pump and buffer tank
- Field convertible gas system (NG or LP, kit included)
- Low NOx emissions (20 ppm)
- Indoor or outdoor wall-hung installation
- EZNav™ multi-line control panel with built-in HotButton™
- Cascading capable: up to 32 units
- Common venting capable: up to 12 units
- 1/2″ gas line compatible up to 24 feet
- 2″ venting up to 75 feet, 3″ venting up to 150 feet
- 3/4″ NPT gas and water connections
- Electronic ignition and VID safety feature
Navien NPE-240A2 condensing tankless water heater. Follow the installation manual, venting requirements, local gas and plumbing codes, and manufacturer instructions.
