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
183 reviews
Gary North
Jan 15, 2024
These professionals proved to be highly reliable, going above and beyond to ensure our boiler was repaired and hot water was restored as quickly as possible.
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!
Christopher Bertram
Oct 24, 2023
I am very glad that I chose this company to repair my air conditioner! The technician was on time, polite, worked diligently and cleaned up completely when he was done. It's scary to choose from companies you've never worked with, but Superior HVAC Service was the right choice!
Amelia Galbraith
Nov 2, 2023
These guys were great! They arrived on time and completed the furnace repair in one day, which was a pleasant surprise for me. Thanks!
We will deliver Heat Only Gas Boilers to any of these cities
Jan 15, 2024
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