Dual Venturi system creates better combustion control, turndown ratio and easy field gas conversions.
2" venting up to 65' (including schedule 40 PVC).Vent Installation Detector (VID) for added safety.
Patented stainless steel fire tube heat exchanger Navien’s innovative heat exchanger design is ASME‑Certified,“H” Stamped, and reduces high-stress point weld failures common on other combi-boilers.
Advanced user interface with Setup Wizard is made easy with backlit panel, click-wheel control and intuitive text.
Low gas pressure operation. Negative pressure regulating gas valveensures maximum performance all the way down to 3.5" of water column on natural gas and 8" of water column on propane gas.
Dual Venturi system creates better combustion control, turndown ratio and easy field gas conversions.
1/2" gas pipe capability up to 24' (subject to local codes). Cuts installation time, no need to install new gas lines for retrofit applications.
Patented stainless steel fire tube heat exchanger Navien’s innovative heat exchanger design is ASME‑Certified,“H” Stamped, and reduces high-stress point weld failures common on other combi-boilers.
NHB integrated control provides industry-leading options and features including adjustable heat capacity, temp boost for outdoor reset control, adjustable anti-cycle timer and freeze protection.
The condensing technology of the dual stainless steel heat exchangers saves energy, reduces greenhouse gasses.
1/2" gas pipe capability up to 24' (subject to local codes). Cuts installation time, no need to install new gas lines for retrofit applications.
The sophisticated gas flow control system provides a high turndown ratio which reduces energy waste and excessive boiler cycling.
NHB integrated control provides industry-leading options and features including adjustable heat capacity, temp boost for outdoor reset control, adjustable anti-cycle timer and freeze protection
The condensing technology of the dual stainless steel heat exchangers saves energy, reduces greenhouse gasses
2" venting up to 65'; 3” up to 150’ (including schedule 40 PVC)
The sophisticated gas flow control system provides a high turndown ratio which reduces energy waste and excessive boiler cycling
A few steps and a new Commercial Boiler Navien in your company
Make an order
Contact us to buy a new boiler. Our team will guide you every step of the way and help you choose the right model.
Arrival of a technician
Once your order is confirmed, we will promptly visit your location and conduct a thorough inspection, ensuring all necessary details are clear.
Delivery and installation work
After the assessment, we will deliver the boiler to you. Our experts will carry out the installation efficiently and professionally.
Get a warranty
You receive a warranty that covers various components and services, and when it ends, you can count on our post-warranty services.
Why should you buy a Navien Commercial Boiler from us?
9.7/10
215 reviews
4.8/5
reviews
Malak Kharnoub
Jan 31, 2025
Excellent HVAC Service!Our furnace stopped working in the middle of a cold snap, so we called Superior HVAC Service. Michael showed up right on time, diagnosed the issue, and fixed it quickly. He also took the time to explain how to maintain the system to avoid future problems. Highly impressed with the level of service—definitely recommend!
Alice Smith
Jan 05, 2026
We had a wonderful experience with Superior HVAC.The office staff were wonderful to deal with,the technicians who came into our home to do the work were great.Everyone was not only friendly, but also very efficient.The work was done quickly and perfect.No issues of any kind. I will definitely use them again when needed and recommend them to anyone. In case you are wondering, they put in a new furnace and fixed a leak.Two thumbs up, definitely 5 stars.
Daniel Rizak
Jan 30, 2025
I had trouble with my tankless water heater, so I reached out to Superior HVAC Service. Farid arrived promptly, diagnosed the issue right away, and had it running perfectly in no time. He even took a quick look at my furnace to make sure everything was in good shape. Super professional and efficient!
jey trimble
Dec 17, 2025
My furnace stopped working on a very cold day, superior hvac was super quick to send out Ryan,who was super friendly and knowledgeable. He quickly diagnosed the problem and was able to have it repaired and running same day !
We will deliver Commercial Boilers Navien to any of these cities
Jan 31, 2025
Ajax