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
Get the Wall Boiler Navien 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
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 Navien from us?
9.7/10
215 reviews
5/5
1238 reviews
Joanna Rizelle Moreno
Jul 16, 2025
Soft water restored! Water softener repair was quick and easy with their tech guy Daniel. Highly recommend their service. Thank you Superior HVAC, Heating and Air Conditioning
Michael LoStracco
Apr 29, 2025
The service was great they were able to get the part ordered in 2 days and were back to repair the furnace. The technician was very nice and knowledgeable and talked me through was needed to be repaired.It was a great experience from the frist phone call till it was fixed.
Jen MacRae
Apr 22, 2025
We're so pleased with Connor and the Superior team. Our 20-year-old furnace died. Connor was very transparent with our options, which were limited given the age of the furnace, the issue, and specific part required. In the end, we decided to replace the furnace. To our complete surprise, it was installed that same night. Communication throughout the experience was top notch. Highly recommend!
Mark Paul Ampusta
Feb 20, 2025
Installation for my furnace was quick and seamless. Their technician named Cole paid attention to every detail, ensuring a perfect fit. Great customer service and a stress-free experience. Awesome Superior HVAC!
Sheldy Palacio
Feb 10, 2025
The installation went smoothly, and the furnace works great. Overall, a great experience with Superior HVAC. Their technician guy named William was nice as well even cleaned up the mess.
Clara Marmol
Oct 19, 2025
Outstanding thermostat upgrade! Tech named Zach was patient and skilled. Our system runs smoother now. Couldn’t be happier service from Superior HVAC Heating and Air Conditioning
Issabella L
Feb 16, 2025
Ian from Superior hvac services came out for a water heater inspection, and I was highly impressed with the service. He arrived on time, thoroughly explained the inspection process, and identified some necessary repairs. Ian’s professionalism and expertise stood out. I’ll definitely be using their services again!
We will deliver a Wall Boiler Navien to any of these cities
Jul 16, 2025
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