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.
Get the Wall Boiler 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
Once the order is confirmed, our skilled technician will promptly arrive at your property to conduct an inspection and clarify any 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
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 Wall from us?
9.7/10
215 reviews
4.9/5
1200 reviews
Jared Tommy
Oct 24, 2023
They have helped me countless times! The last time I hired them for heat pump installation and didn't regret it again. While I was away, I didn't worry about my home because I knew it was fine and the unit has been working flawlessly by now. Thank you!
Jefferson Tabud
Feb 5, 2025
Called Superior HVAC Services as I was having issues with hot water in my house. They sent a technician named Ian the same day. He did a thorough inspection, checked all of the fixtures in my house. Turned out my water heater was working and the mixing valve failed. He explained what caused it and how to prevent it in the future. Very knowledgeable staff and helpful. Gave a quote for services needed. I am satisfied with the service and with the technician. I hope all services are like this! Happy client here!
Harinder Kaur
Feb 4, 2025
Ian did a fantastic job diagnosing and replacing the gas valve on my water heater. He explained the whole process, and the pricing was very reasonable for the quality of work.
Clyde Leaño
Jul 12, 2025
Tyler, a technician from Superior HVAC, Heating and Air Conditioning, provided excellent service and a smooth repair for my water softener that wasn't regenerating properly. I'm very happy with their prompt response.
Ryan Charlton
Mar 21, 2025
Great experience, fast service. Technician Hunter was very friendly and polite and explained options thoroughly and has us fixed up the same day.
Maxine Moon
Jul 4, 2025
Air conditioner fixed the next day. Professional tech guy named Daniel and explained everything clearly even gave some tips. Thank you Superior HVAC, Heating and Air Conditioning
Francis Ma
Jul 8, 2025
Superior HVAC, Heating and Air Conditioning provided excellent service through their technician Daniel, who quickly resolved the error codes on my tankless water heater at a fair price. I highly recommend them.
We will deliver a Wall Boiler to any of these cities
Oct 24, 2023
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