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
Integrated ECM pump and DHW diverter valve on all models
Small zone valve systems may not require an additional pump or a low loss header
Get the Condensing Boiler Gas in just a few steps
Make an order
Order your new boiler today by contacting us. Our dedicated customer support team will assist you through all the necessary steps.
Arrival of a technician
Once the order is confirmed, our skilled technician will promptly arrive at your property to conduct an inspection and clarify any details.
Delivery and installation work
We'll deliver the boiler to your location, and our experienced experts will handle the installation efficiently and professionally.
Get a warranty
Our warranty covers various parts and services, and even after its expiration, we provide reliable post-warranty services.
Why should you buy a Natural Gas Condensing Boiler from us?
9.7/10
215 reviews
4.8/5
0 reviews
Nestor Sales. Florece Jr
Feb 5, 2025
Their technician named Kurtis even diagnosed my thermostat issue within minutes and repaired it efficiently. Very professional and knowledgeable! Awesome Superior HVAC Services!
Micheal Santner
Dec 12, 2023
They were not only punctual and helpful, but they also seemed to be extremely knowledgeable and experienced. They took the time to answer my questions and showed me all of the new features.
Duke Guy
Nov 28, 2023
Matt did an excellent job of diagnosing and fixing our water heater problem! He was professional, kind, and extremely knowledgeable!
aracely cervantes
Feb 7, 2025
Ian was incredibly thorough in his work. He diagnosed our air handler issue precisely and ensured everything was working before he left!
Nicole Flores Garza
Feb 7, 2025
Reard was extremely knowledgeable and took the time to explain why our boiler wasn’t working. He fixed it fast and even gave us tips to prevent future problems!
We will deliver a boiler condensing gas to any of these cities
Feb 5, 2025
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