Why we love this product.

  • Durable stainless steel heat exchanger for unmatched performance
  • Versatile indoor or outdoor installation
  • Low NOx emissions for a cleaner and safer operation
  • Recirculation control for simplified setup


The NPN-180U is a premium non-condensing tankless water heater designed for both residential and commercial use. With a maximum DHW input of 180,000 BTU/h, this unit delivers an efficient and reliable hot water supply. It features a NaviTech stainless steel heat exchanger and burner, ensuring durability and unmatched performance. The NPN-180U can be installed either indoors or outdoors, providing flexibility for various applications.

NPN-180U Features

  • Exclusive stainless steel heat exchanger for unmatched durability
  • Universal integrated control panel for easy temperature adjustment and troubleshooting
  • Built-in Air Pressure Sensor (APS) for monitoring and compensating vent system
  • Patented NaviTech™ stainless steel burner for high efficiency
  • Recirculation control built into the circuit board for simplified system setup
  • Built-in Water Adjustment Valve (WAV) and Mixing Valve for stable water temperature
  • Suitable for indoor or outdoor installations, providing versatile options
  • Low NOx emissions of only 20ppm, promoting cleaner and safer operation
  • Cascading capable of expanded capacity
  • It comes with certifications and is supported by quality and reliability

NPN-180U premium non-condensing tankless water heater offers exceptional performance and durability. Experience the quality and efficiency of NPN-180U for your residential or commercial needs.