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
Get the Natural gas Boiler Navien in just a few steps
Make an order
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'll deliver the boiler to your location, and our experienced experts will handle the installation efficiently and professionally.
Get a warranty
You receive a warranty that covers various components and services, and when it ends, you can count on our post-warranty services.
Why should you buy a Boiler Natural gas Navien from us?
9.7/10
215 reviews
4.9/5
319 reviews
Clyde Twain
Oct 25, 2023
The guys did a terrific job repairing my boiler's thermostat. They were at my doorstep the same day I called and had the system up and running very quickly!
Irasema RamĂrez
Jan 16, 2025
Our water heater stopped working, so we reached out to Superior for help. Kurtis came quickly, fixed the issue in one visit, and was very professional. Highly recommend their service.
Yahaira Perez
Jan 18, 2025
Ian replaced our heating system in record time. He was kind and professional throughout the entire process. The new system works perfectly. A big thank you to Superior Plumbing and Heating!
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.
Tahir Pasha
Jun 24, 2024
I had great experience with this company . My water heater gave up over weekendIan technician washelpful and came over and ran diagnostic and fixed heater and advise to get new one as my water heater is at end of lifeHighly recommended professional and courteous
Anthany Morris
Dec 12, 2023
Their patience in replying to my questions and explaining the procedure was commendable.They did their work with great responsibility.
AA iris
Dec 12, 2023
If the hot water heater's pilot light goes out, Leo explained how to re-start it. This is a great company.
We will deliver Boilers Natural gas Navien to any of these cities
Oct 25, 2023
Ajax