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
1180 reviews
Jennica Allysa Baul
Jul 24, 2025
Well pump installation done perfectly. Great communication, no delays, and system works flawlessly. Very professional and reliable plumbing crew named Kurtis. Awesome experience with Superior Plumbing and Heating
gurleen kaur
Feb 10, 2025
My boiler started making strange noises, so I contacted Superior HVAC Service. Farid arrived on time, diagnosed the issue right away, and had it repaired quickly. He even checked my furnace to ensure everything else was working properly. Excellent service from a knowledgeable technician!
Bryan Byron
Oct 25, 2023
Superior HVAC Service, thank you for doing a great job. My furnace is no longer making noise. This company has the best people working for it!
Adrienne reenel Viana
Feb 9, 2025
On the coldest night of the year, our furnace broke! Excellent Superior HVAC arrived in a few hours and promptly got it fixed. Kurtis, the technician, was amiable and competent.
Justine V
Feb 6, 2025
Ian from Superior HVAC services recently replaced my furnace, and I couldn't be more satisfied with the experience. From the initial inspection to the installation, he was professional, knowledgeable, and efficient. Outstanding work!
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!
John Hoover
Nov 27, 2024
technician phoned to say he was on his way, very prompt and courteous, did a quick but thorough diagnios. no compliants
Ariadna Noriega
Nov 2, 2024
He was very kind and professional
We will deliver boilers condensing to any of these cities
Jul 24, 2025
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