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 Residential 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 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 Navien Residential Boilers from us?
9.7/10
215 reviews
4.8/5
reviews
Jone Okie
Nov 01, 2025
The tankless water heater installation by Superior HVAC Heating and AirConditioning was quick, clean, and professional. The tech guy named Tyler was friendly and explained everything thoroughly. I highly recommend their service and expertise.
Daniel Beatty
Dec 23, 2025
Our furnace broke down this year and we found Superior HVAC through researching for a licensed company local to us in the Niagara region. They were very quick to respond and get one of their technicians to work with us on installing a new furnace. Kurtis and his colleague worked very efficiently to remove the old furnace and install the new one making sure it's running and working perfectly before they left. Kurtis was very communicative with me and showed me the new system and how it works. We're very happy with the experience of working with Superior and their team. Pricing was very fair considering the quality of service provided. We will most definitely keep them in mind for future service calls
Criszel Bagting
Feb 08, 2025
Our tankless water heater's issue was expertly explained by the highly qualified technician, Brian. They are reliable, effective, and punctual. Bravo, Superior HVAC
Isay Elloso
Feb 20, 2025
Fast, professional, and precise installation for my air handler. They've explained everything clearly and cleaned up afterward. Thank you Ian, their tech guy. Couldn’t be happier with the results. Would absolutely hire them again! Keep up the good work Superior HVAC!
Lady Jemy Castillo
Oct 28, 2025
Air handler maintenance by Superior HVAC Heating and AirConditioning improved my home’s air quality dramatically. Friendly staff and top-notch service from the plumber named Michael. Highly satisfied customer!
We will deliver Residential Navien Boiler to any of these cities
Nov 01, 2025
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