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
Contact us to start the process of purchasing a new boiler. Our customer support team will guide you through all the necessary steps.
Arrival of a technician
After confirming your order, our technician will arrive at the appointed time to inspect the property and clarify the necessary details.
Delivery and installation work
We will deliver the boiler to you. Our team will handle the installation with efficiency and professionalism, ensuring a seamless setup.
Get a warranty
We offer a warranty that covers different parts and services. Even after the warranty expires, you can rely on our post-warranty services.
Why should you buy a Gas Boiler Only Heating 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.
Walker May
Oct 26, 2023
The guys were very thorough, immediately recognized the problem, and had all the necessary tools on hand to repair my heat pump. Thanks a lot!
Kaya McClure
Jul 6, 2024
Brian was fantastic! Very kind and very knowledgeable. He did his best in a difficult situation and we were lucky to get direct help!!
Fawad Ahmed
Jan 11, 2024
I've had an uneven experience with other repair services, but this one was absolutely perfect and a great surprise to see the amount of work that has gone into it. Fast and affordable. They sent me a good technician to replace the boiler, and they've solved the overheating problem. He'd been experienced, calm and deliberate in dealing with possible causes. He's also come and fixed any unseen problems, too.
We will deliver Heat Only Gas Boilers to any of these cities
Dec 29, 2023
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