Why we love this product.

  • Super condensing efficiency
  • Dual stainless steel heat exchangers
  • High turndown ratio of up to 15:1 reduces energy waste
  • Certified for residential and commercial use


The NHB-150 is a high-efficiency condensing heating boiler designed for both residential and commercial applications. With a maximum HTG input of 150,000 BTU/h, it is suitable for various heating needs. This indoor wall-hung boiler offers exceptional performance and energy savings.

NHB-150 Features

  • Super condensing efficiency: The condensing technology of the dual stainless steel heat exchangers ensures maximum energy savings and reduced greenhouse gas emissions.
  • Versatile venting options: The boiler supports SCH40, 2″ PVC venting up to 60′, providing flexibility in installation.
  • High turndown ratio: The sophisticated gas flow control system allows for a turndown ratio of up to 15:1, reducing energy waste and preventing excessive boiler cycling.
  • Integrated controls: The NHB integrated control offers industry-leading options and features. It includes adjustable heat capacity, a temp boost for outdoor reset control, an adjustable anti-cycle timer, and freeze protection.
  • Extended venting capabilities: Enjoy the convenience of 2″ venting up to 65′ and 3″ venting up to 150′ (including schedule 40 PVC), allowing for versatile installation options.
  • Certified excellence: The NHB-150 holds various certifications, ensuring its quality and compliance with industry standards.
  • Find sales and support: Easily locate nearby installers, explore credits and rebates, and find sales representatives for personalized assistance.
Invest in the NHB-150 condensing heating boiler for its exceptional efficiency, advanced features, and flexible installation options. Enjoy energy savings, reduced emissions, and convenient control over your heating system.