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 Boiler Condensing in just a few steps
Make an order
Contact us to buy a new boiler. Our team will guide you every step of the way and help you choose the right model.
Arrival of a technician
Once your order is confirmed, we will promptly visit your location and conduct a thorough inspection, ensuring all necessary details are clear.
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 from us?
9.7/10
215 reviews
4.9/5
1201 reviews
Erika Jane Lazara
Jul 24, 2025
Drainage pipe replacement handled professionally. Great diagnostics and execution. Their tech named Matthew was nice and arrived on time. Water now flows as it should. Will hire again Superior Plumbing and Heating.
Juliet D'Silva
Feb 3, 2025
We hired Superior HVAC to take care of our furnace in our rental property and they did an amazing job! Reard was really nice and professional!!! Thank you so much for your services!
Merle Bloomfield
Nov 1, 2023
We hired Superior HVAC Service to install a tankless water heater last weekend. Excellent customer service, great technical support, fast work, and a warranty on the installation. I would recommend this company!
Khate Castro
Feb 9, 2025
Shoutout to Alec of Superior HVAC for repairing my broken thermostat. I only waited for a day for him to take a look at it and he quickly identified the problem and repaired it.
Ella Rhose Tadiosa
Feb 7, 2025
Ian from Superior HVAC services was highly professional and courteous. He arrived on time, efficiently repaired our water heater, and even took the extra step to inspect our furnace to ensure everything was working properly.
Mark Paul Ampusta
Feb 20, 2025
Installation for my furnace was quick and seamless. Their technician named Cole paid attention to every detail, ensuring a perfect fit. Great customer service and a stress-free experience. Awesome Superior HVAC!
Deb C
Dec 3, 2024
After speaking to several companies this weekend, I reached out to Superior when my furnace gave out. Ian was there within a couple of hours, answered all my questions and explained everything patiently and thoroughly. I called them at 130 in the afternoon and had the new furnace installed and running by 8 pm. I would definitely recommend Superior to anyone who needs assistance quickly. Very satisfied.
D Roberge
Nov 6, 2024
Great experience with Superior Plumbing.Kurtis was accommodating and able to deal with logistic challenges I had on the work to be done.Very articulate and well spoken.
We will deliver boilers condensing to any of these cities
Jul 24, 2025
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