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.
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
2" venting up to 65'; 3” up to 150’ (including schedule 40 PVC)
The sophisticated gas flow control system provides a high turndown ratio which reduces energy waste and excessive boiler cycling
Get the Propane High Efficiency Boiler in just a few steps
Make an order
Order your new boiler today by contacting us. Our dedicated customer support team will assist 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
You receive a warranty that covers various components and services, and when it ends, you can count on our post-warranty services.
Why should you buy a High Efficiency Propane Gas Boiler from us?
9.7/10
215 reviews
4.9/5
1200 reviews
King Dy
Jul 10, 2025
The furnace was not heating evenly, but now it's working perfectly thanks to Superior HVAC Heating and Air Conditioning's friendly tech guy named Drew and great value for the repair.
john paul tabud
Feb 7, 2025
Ian came to repair our furnace, and his work was exceptional. He clearly explained the problem, fixed it promptly, and even shared tips for prolonging its lifespan. I highly recommend Superior HVAC Services!
ritchie mallari
Mar 11, 2025
Professional and efficient furnace repair.The tech guy named Cameron was knowledgeable and friendly.Five stars Superior HVAC
Michael LoStracco
Apr 29, 2025
The service was great they were able to get the part ordered in 2 days and were back to repair the furnace. The technician was very nice and knowledgeable and talked me through was needed to be repaired.It was a great experience from the frist phone call till it was fixed.
Constantino, John Mathew D.
Jul 9, 2025
The service I received from Superior HVAC, Heating and Air Conditioning far exceeded my expectations. Michael, the technician, arrived promptly, provided clear explanations, and efficiently fixed the heating element. I now have strong hot water flow. Thank you.
Ej Ochangco
Jul 16, 2025
Superior HVAC, Heating and Air Conditioning promptly fixed my leaky water heater, and the tech, Reard, was both courteous and knowledgeable. I would definitely call them again. Thank you!
We will deliver a Boiler High Efficiency Propane Gas to any of these cities
Jul 10, 2025
Ajax