Why we love this product.

  • Ultra condensing efficiency
  • Field convertible gas system
  • EZNav multi-line control panel
  • Built-in HotButton control panel


Experience unparalleled efficiency and reliability with the NPE-180A2 advanced high-efficiency condensing tankless water heater. Designed to deliver exceptional performance, this tankless water heater combines cutting-edge technology with user-friendly features. Experience substantial energy savings, reduced emissions, and durable construction that guarantees long-lasting operation. Enhance your home with the NPE-180A2 and revel in a consistent supply of hot water whenever you desire it. Upgrade your hot water experience today.

NPE-180A2 Features

  • ½” gas pipe capable of up to 24.’
  • Ultra condensing efficiency for maximum energy savings
  • Field convertible gas system for versatile installation options
  • Dual stainless steel heat exchangers for added durability
  • Low NOx emissions (20ppm) for a cleaner environment
  • SCH 40, 2″ venting up to 75.’
  • Cascading capable of larger applications
  • EZNav multi-line control panel with built-in intuitive software
  • Built-in HotButton control panel for quick adjustments
  • Common vent up to 12 units for efficient installation
  • 2″ PVC venting up to 75 feet, allowing for flexible installation
  • Vent Installation Detector (VID) for added safety
  • Dual Venturi system for better combustion control and turndown ratio
  • ComfortFlow® NPE-A2 built-in recirculation system for instant hot water
  • Dual stainless steel heat exchangers for enhanced durability
  • 1/2″ gas pipe capability up to 24′ (subject to local codes) for easier retrofit applications
  • Enjoy hot water on demand and save energy while reducing your environmental impact. Don’t settle for less when it comes to your comfort—choose the NPE-180A2 today.