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
4.9/5
1200 reviews
Maritzy Vanessa Cruz Nah
Feb 4, 2025
Kurtis repaired my air handler, and the process was smooth and stress-free.
Ann Dedios
Feb 12, 2025
Great service. The technician, William, was nice and knowledgeable. Highly recommended for air handler repair. Superior HVAC, you are the best!
Brody Doerr
Mar 27, 2025
Every Spring I like to test out my AC system to make sure all headaches are avoided before the busy season this year it would not start… I called superior HVAc out they had Conner at my door with in 2 hrs. He tested my system for about an hour and found a coolant leak after a recharge of my system my Air Conditioner started working again!!! Highly recommend honest guy ask for Conner
john paul tabud
Feb 7, 2025
Ian came to repair our furnace, and his work was exceptional. He clearly explained the problem, fixed it promptly, and even shared tips for prolonging its lifespan. I highly recommend Superior HVAC Services!
Sarah B
Mar 21, 2025
Excellent repair for my under sink repipe. The plumber named Kurtis was on time, explained everything, and left no mess. My sink drains perfectly now. Will use again Superior Plumbing and Heating.
Jen MacRae
Apr 22, 2025
We're so pleased with Connor and the Superior team. Our 20-year-old furnace died. Connor was very transparent with our options, which were limited given the age of the furnace, the issue, and specific part required. In the end, we decided to replace the furnace. To our complete surprise, it was installed that same night. Communication throughout the experience was top notch. Highly recommend!
We will deliver a boiler condensing gas to any of these cities
Feb 4, 2025
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