Dual Venturi system creates better combustion control, turndown ratio and easy field gas conversions.
2" venting up to 65' (including schedule 40 PVC).Vent Installation Detector (VID) for added safety.
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.
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
Easy service access and quick component connections
Get the Boiler Only Heating 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 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 Heat Only Boiler from us?
9.7/10
215 reviews
4.9/5
244 reviews
Wild Nathan
Oct 26, 2023
Superior HVAC Service was a huge help with our furnace installation. We had no worries throughout any stage of the process, from first contact to final setup. The guys knew what they were doing and did a great job. Thanks!
Matthew Kelvin
Oct 25, 2023
The guys were absolutely professional. They arrived at the time they said they would, were respectful of our home and cleaned up thoroughly after the water heater repair job was finished. They then took the time to explain everything that was done and how it all worked. I am very satisfied!
Maverick Micah
Jan 10, 2024
We had an issue with the furnace thermostat -it was not heating properly. So we contacted this repair service to get it fixed or replaced, if necessary, as soon as possible, since they have this emergency option. And they came quickly! The technician found that we needed to replace the thermostat, it was the only way out. Plus, the price was affordable.
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!
We will deliver Heat Only Boilers to any of these cities
Oct 26, 2023
Ajax