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
4.8/5
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.
Alice Smith
Jan 05, 2026
We had a wonderful experience with Superior HVAC.The office staff were wonderful to deal with,the technicians who came into our home to do the work were great.Everyone was not only friendly, but also very efficient.The work was done quickly and perfect.No issues of any kind. I will definitely use them again when needed and recommend them to anyone. In case you are wondering, they put in a new furnace and fixed a leak.Two thumbs up, definitely 5 stars.
C Bharath ashok
Feb 03, 2026
I had a great experience with Superior HVAC New Market. Scheduling was easy, communication was clear, and the technician was professional and efficient. Everything was checked thoroughly before the job was completed.
Lindsey Hurcomb
Jan 09, 2026
Alex from superior HVAC came the same day I called and fixed my gas valve, he was very polite and skilled! Would hire again!
We will deliver Navien 175 000 BTU Boilers to any of these cities
Oct 31, 2025
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