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
244 reviews
Woody Kirk
Dec 29, 2023
For the past two years, the semi-annual maintenance of our HVAC system by Superior HVAC Service has been consistently smooth. The technicians have been punctual, conducting their tasks with thoroughness and maintaining a professional attitude throughout. They have not only offered valuable suggestions and explanations but also provided clear recommendations for cost-saving measures. The trust I have in their commitment to quality service and customer satisfaction extends to the company as a whole. Without reservation, I confidently recommend Superior HVAC Service.
Elaine Pudwell
Jul 10, 2024
George was great- thorough and knowledgeable. He assessed our situation quickly and laid outthe procedure and expense in a very pleasant manner.
Perry Meredith
Oct 25, 2023
This HVAC company is without a doubt the best when it comes to getting things done. You can be sure that the work will be completed well and that the people who come to your house will respect your time. They only hire technicians with licenses and experience!
Justin Glover
Sep 20, 2023
The guys were generous with information that saved me time, money and headaches. They took the time to help me and give me the right tips on my furnace installation at no cost. Thank you again!
Victor Turner
Dec 28, 2023
For years, the same technician has conducted semi annual checks on our AC and furnace since their installation. Always friendly and knowledgeable, he ensures he's looking out for our best interests rather than pushing unnecessary parts or services. Scheduling is easy online or via text, and communication and service quality are excellent. Working with this company is a pleasure.
Richard Brown
Sep 20, 2023
Thanks to their expertise, my weekend was not spoiled due to a broken air conditioner. Their HVAC repair expert quickly arrived at my apartment and fixed the unit without a hassle. Nice!
We will deliver boilers condensing to any of these cities
Dec 29, 2023
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