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
4.9/5
1200 reviews
Javier Lopez
Feb 7, 2025
Our water heater broke down unexpectedly, and George had a new one installed the same day. Fast, reliable, and incredibly professional!
Аня Кузьмина
Feb 4, 2025
My boiler wasn't heating up properly, so I contacted the excellent ventilation and air conditioning service. Cole arrived quickly, diagnosed the problem, and fixed it as soon as possible. He also quickly inspected my oven to make sure everything was working smoothly. The service was professional, thorough and highly appreciated!
Alex Patton
Jul 14, 2025
My technician Tyler was really friendly,explained things well, and took me seriously when the issue I called about wasn't happening immediately. Appreciated his service
Laurier Team
Mar 13, 2025
Our furnace suddenly stopped blowing warm air, and we were freezing! Conner quickly diagnosed the issue as a bad blower motor and had it replaced the same day. He explained everything in simple terms and even checked the rest of the system to make sure we wouldn’t have more problems. Super professional and friendly—highly recommend!
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!
Beachpanda18
Feb 8, 2025
Nice service from Cole, he made installed a new thermostat for us and the process was free-stress
Robyn Goodhue
Mar 27, 2025
Conner came out and inspected my boiler, it was an old wiseman boiler and I was worried it wouldn’t be operational anymore and thankfully he came and spoke with me about the repair process— only one 3 way aviator and my boiler is working again, thank you so much Conner!!
Dhruv Patel
Jun 5, 2025
Had an amazing experience with Superior HVAC thanks to their technician, Drew. He showed up right on time, was super friendly, and clearly knew what he was doing. He took the time to explain the issue with my water heater in simple terms and fixed it quickly without making a mess.What really impressed me was how professional and respectful he was the entire time—no upselling, just honest, quality work. You can tell he takes pride in his job. If you’re booking with Superior, ask for Drew. You won’t be disappointed!
We will deliver Navien 175 000 BTU Boilers to any of these cities
Feb 7, 2025
Ajax