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
Get the Navien Condensing Boiler 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 Condensing Boiler Navien from us?
9.7/10
215 reviews
4.8/5
0 reviews
Muhammad Uzair
Jan 11, 2024
This product met my hopes. They sent me a technician to service the furnace in two hours. When the ambulance broke down completely, we needed an ambulance. I would highly recommend them to anyone interested in learning more about them.
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!
AA iris
Dec 12, 2023
If the hot water heater's pilot light goes out, Leo explained how to re-start it. This is a great company.
Thomas Kaiser
Dec 28, 2023
Facing a furnace issue, I contacted Superior HVAC Service, and Tanner proved to be responsible, responsive, and highly skilled. He arrived promptly, explained the problem and his actions, and provided professional insights. Tanner's professionalism and thorough explanation of charges and future maintenance tips impressed me, making Superior HVAC Service my go-to for HVAC issues.
REBADAVIA, Thaddeus Heinrich M.
Feb 20, 2025
Professional, efficient, and timely installation. The tech guy named Conner was knowledgeable, left no mess, and ensured everything worked perfectly. Highly recommend for hassle-free installation of tankless water heater! Thank you Superior HVAC!
We will deliver a boiler Navien condensing to any of these cities
Jan 11, 2024
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