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
183 reviews
Fawad Ahmed
Jan 11, 2024
I've had an uneven experience with other repair services, but this one was absolutely perfect and a great surprise to see the amount of work that has gone into it. Fast and affordable. They sent me a good technician to replace the boiler, and they've solved the overheating problem. He'd been experienced, calm and deliberate in dealing with possible causes. He's also come and fixed any unseen problems, too.
Scott Lane
Jan 4, 2024
Kurtis and Matt replaced both my air conditioning unit and furnace, leaving me extremely satisfied. Their prior service on my equipment was always punctual, efficient, and professional. I highly recommend their services.
Camron Black
Dec 12, 2023
Our boiler was failing, and they immediately diagnosed the problem and explained it in a straightforward way.
Andrew Flower
Nov 28, 2023
They were great to work with. They were prompt and offered me fair prices. Leo, their technician, was professional, friendly, and very knowledgeable. The problem was solved!
Shimron Manuel
Dec 12, 2023
Installation was successfully completed. The building process was characterized by cleanliness and organization. Thanks
We will deliver a boiler condensing gas to any of these cities
Jan 11, 2024
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