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
5/5
1238 reviews
Josepeh James
Sep 20, 2023
Last week I needed an air conditioner repaired and I was lucky to bump into Superior HVAC Service. They are honest, hardworking guys. The prices were reasonable, and they were very responsible about leaving my house as clean as they found it. You will not be disappointed!
Noel Gonsalves
Sep 03, 2025
Very courteous and helpful.
Ivette ashleigh Ivette ashleigh
Mar 27, 2025
Replaced our failing pump quickly. Their guy named Raz tested everything before leaving—runs smoothly. Their tech guy named Brian was courteous and efficient.Excellent experience with Superior Plumbing and Heating
Jami Carl
Dec 12, 2023
I hired their services and didn't regret it a day. At the end of the day, they double-checked everything and charged a fair price.
John rey Bula
Jul 10, 2025
Superior HVAC, Heating and Air Conditioning provided same-day repair of my leaking water heater, with clear communication from their technician named Tyler and clean work, giving me peace of mind.
Francine Musca
Oct 19, 2025
Lifesavers! Fixed our old heater before winter. Polite, prompt, and priced fairly by Tyler the tech guy. Superior HVAC Heating and Air Conditioning truly lives up to its name.
amanda degyves
Feb 13, 2025
Kurtis and the team at Superior HVAC did a fantastic job installing our new high-efficiency furnace. Our home heats up so much faster now!
Bad Benny
Feb 08, 2025
Superior HVAC is truly superior! George replaced our outdated boiler with a modern, energy-efficient model. The installation was flawless!
We will deliver boilers condensing to any of these cities
Sep 20, 2023
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