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.
Get the 175 000 BTU Navien Boiler 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
We offer a warranty that covers different parts and services. Even after the warranty expires, you can rely on our post-warranty services.
Why should you buy a Boiler Navien 175 000 BTU from us?
9.7/10
215 reviews
5/5
1183 reviews
milan torak
Oct 31, 2025
Maintenance on my tankless water heater went perfectly with Superior HVAC Heating and AirConditioning. The technician named Sean was thorough and ensured the system worked optimally. Excellent customer service and professionalism.
James Black
Feb 19, 2026
The team at Superior HVAC Service, Heating & Air Conditioningdid an amazing job replacing our old gas furnace. They were prompt, professional, and the installation was seamless. They kept the workspace clean and explained everything before they left. The new unit is efficient and quiet—highly recommend them!
Mary Paul
Feb 03, 2026
Superior HVAC Sarnia helped fix my furnace when it suddenly stopped heating the house. They responded quickly, diagnosed the issue right away, and explained what needed to be repaired before starting. The furnace was up and running the same day, and the pricing was fair
Josef Smith
Feb 20, 2026
So grateful for the quick response from Superior HVAC. My AC went out on a hot day, but they got my house cool again in no time. Fair pricing and great communication—highly recommend them!
Van Mark
Mar 11, 2026
Called Superior HVAC Service when our air conditioner started making a loud rattling noise. The technician arrived on time, diagnosed a loose part in the fan assembly, and fixed it right away. The unit is running quietly again.
Mary Lambert
Mar 14, 2026
If you want to remove negative reviews from your Google Business, contact me via my profile; my contact details are listed there. After work you can pay..
We will deliver Navien 175 000 BTU Boilers to any of these cities
Oct 31, 2025
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