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 Navienās innovative heat exchanger design is ASMEāCertified,āHā 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 Navienās innovative heat exchanger design is ASMEāCertified,āHā 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.
Get your boiler in just a few steps
Make an order
Contact us to start the process of purchasing a new boiler. Our customer support team will guide you through all the necessary steps.
Arrival of a technician
After confirming your order, our technician will arrive at the appointed time to inspect the property and clarify the necessary details.
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 Boiler from us?
9.7/10
215 reviews
5/5
1163 reviews
Gymea Lorraine Arahan
Nov 01, 2025
Tankless water heater maintenance by Superior HVAC Heating and AirConditioning was top-notch. Their tech named Tyler inspected every part thoroughly and optimized performance. Friendly technicians and fair prices. Very happy with my service.
Ralph Benmergui
Mar 12, 2026
Adam and Tyler were efficient and a pleasure to have fix our problem. Superior got our hot water back by the next day, arriving first thing in the morning.
Alessia Fathollahzadeh
Mar 07, 2026
Superior Hvac was able to replace my 17 year old furnace. they came within the same day I called. highly recommend !
Alexia Fiddes
Dec 22, 2025
Ryan from Superior HVAC came and diagnosed my old furnace. I went with the new furnace that they offered and they were very efficient when installing it. Works perfectly I highly recommended!
Jenna Setlock
Feb 02, 2026
Excellent job done by Ryan recently. Not only did we receive exactly the service we intended to get, but he was by far the most productive and professional employee Iāve seen in this field of work. Keep the business rolling guys!
Nov 01, 2025
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