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
4.8/5
reviews
Rachell Olmedillo
Feb 11, 2025
Efficient and reasonably priced service! My boiler is quickly and flawlessly returned to working order thanks to Superior HVAC. Cole, thank you; the technician showed up on schedule.
Griffin Foster
Mar 14, 2025
Conner diagnosed and fixed my AC issue in no time. He explained everything clearly and provided affordable solutions.
Celeena croose
Feb 07, 2025
Superior HVAC Services was incredible when it came to our furnace repair. Alec was very helpful, took the time to explain the issue, and the repair was done quickly. Highly recommend them!
Mark Yemword
Dec 17, 2025
Today I had a problem with my heater not turning on, I called superior and within an hour they had a technician on their way to diagnose it. Dean arrived and within 5 minutes figured out that the thermostat was giving an incorrect reading. He temporarily fixed the issue and was on his way to get the parts required for the job and within just a couple hours of calling superior my problem was solved. I highly suggest you give these guys a try as they are quick, supportive and get the job done at a reasonable cost.
We will deliver a Wall Boiler to any of these cities
Feb 11, 2025
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