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.
Get the Propane gas Boiler 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
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'll deliver the boiler to your location, and our experienced experts will handle the installation efficiently and professionally.
Get a warranty
Our warranty covers various parts and services, and even after its expiration, we provide reliable post-warranty services.
Why should you buy a Propane gas Boiler from us?
9.7/10
215 reviews
4.8/5
reviews
Tet Arahan
Nov 01, 2025
Superior HVAC Heating and AirConditioningreplaced and installed my water heater flawlessly. The crew named Tyler was efficient and neat. Excellent communication and customer service. I highly recommend them for any heating repairs.
Josh Block
Jan 08, 2026
My furnace died in the middle of winter. With the wife panicing I called Superior HVAC and the technician arrived to my house the same day. Told us our 16 year old furnace wasn't cutting it anymore. We decided to get a whole new furnace which was installed the very next day. They were very professional and left the area clean (Looked like no work was done after they left). I highly reccommend this company for furnace repairs
Alexia Fiddes
Dec 22, 2025
Ryan from Superior HVAC came and diagnosed my old furnace. I went with the new furnace that they offered and they were very efficient when installing it. Works perfectly I highly recommended!
Bob Jonas
Feb 16, 2026
Superior HVAC was able to replace my 15 year old furnace that died in the middle of winter. This company responded quickly and was able to save my family from the freezing cold this winter. Definitely my go to from now on!!
We will deliver Boilers Propane gas to any of these cities
Nov 01, 2025
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