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
4.8/5
0 reviews
Gerardo Mancilla
Feb 8, 2025
Kevin was outstanding! He replaced our old water heater with a high-efficiency model. Super clean installation and great customer service!
Daniela Lozano
Feb 3, 2025
Brian replaced my water heater parts. Best service I’ve had in years!
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!
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!
Георгий Клименко
Feb 7, 2025
My elderly mother's furnace went out on a cold night. Superior HVAC Service prioritized her call and got someone out there within an hour. Mark was incredibly kind and patient, and he got the furnace working again quickly. I can't thank them enough!
Nikz Papery bear
Feb 7, 2025
We had a fantastic experience with Superior HVAC Services. Our tankless water heater needed a repair after 10 years, and Hunter took care of it. He was friendly, efficient, and we’re thrilled with the outcome.
Trina Coleen Manzon
Feb 15, 2025
Air handler repair done right by Superior HVAC! Prompt, courteous, and fairly priced. Their technician guy named Ian arrived on time and prompt service. Thank you!
We will deliver a Wall Boiler Navien to any of these cities
Feb 8, 2025
Ajax