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
5/5
1238 reviews
Jefferson Tabud
Feb 05, 2025
Called Superior HVAC Services as I was having issues with hot water in my house. They sent a technician named Ian the same day. He did a thorough inspection, checked all of the fixtures in my house. Turned out my water heater was working and the mixing valve failed. He explained what caused it and how to prevent it in the future. Very knowledgeable staff and helpful. Gave a quote for services needed. I am satisfied with the service and with the technician. I hope all services are like this! Happy client here!
Jrald Bagnol
Jul 10, 2025
The technician named Kurtis was knowledgeable and nice. He even clean up the mess. Diagnosed the issue and had parts on hand. Heat restored quickly with no mess left behind. Excellent team Superior HVAC, Heating and Air Conditioning
D Roberge
Nov 06, 2024
Great experience with Superior Plumbing.Kurtis was accommodating and able to deal with logistic challenges I had on the work to be done.Very articulate and well spoken.
Malak Kharnoub
Jan 31, 2025
Excellent HVAC Service!Our furnace stopped working in the middle of a cold snap, so we called Superior HVAC Service. Michael showed up right on time, diagnosed the issue, and fixed it quickly. He also took the time to explain how to maintain the system to avoid future problems. Highly impressed with the level of service—definitely recommend!
Medy Haque
May 29, 2025
Great service! Tyler was very helpful!
Marius Iordache
Feb 17, 2025
Sean was fantastic! He arrived right on time, quickly diagnosed the issue with our electric furnace, and had it running perfectly in no time. Not only did he fix the problem, but he also took the time to answer all our questions and even taught us proper maintenance to keep it running smoothly. Professional, knowledgeable, and friendly—highly recommend Sean for any HVAC needs!
Shane Jasmine Lopez
Jul 16, 2025
Fast, friendly, and fair pricing. Fixed the ignition issue in under an hour. The tech guy Daniel even checked the thermostat before leaving. Excellent team Superior HVAC, Heating and Air Conditioning
We will deliver Boilers Propane gas to any of these cities
Feb 05, 2025
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