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
5/5
1238 reviews
Franco Orefice
Jun 05, 2025
The two technicians were very friendly, informative and professional as they diligently installed our new AC unit. They left a very clean workspace and tested the unit before leaving. Very happy with this service!
Clyde Leaño
Jul 12, 2025
Tyler, a technician from Superior HVAC, Heating and Air Conditioning, provided excellent service and a smooth repair for my water softener that wasn't regenerating properly. I'm very happy with their prompt response.
John rey Bula
Jul 10, 2025
Superior HVAC, Heating and Air Conditioning provided same-day repair of my leaking water heater, with clear communication from their technician named Tyler and clean work, giving me peace of mind.
Sinisa Vasic
Aug 08, 2025
Our AC was working but not cooling, so we have engaged Superior Plumbing and Heating for diagnostic and repair. Since replacing some electrical components did not help we agreed to buy and install a new AC. Two days later two technicians showed up with a new AC unit. They worked very efficiently - they dismantled and removed the old AC, and while one of them was working in a furnace room, another one was working on AC unit outside. When installation was completed AC was tested and proved that works well.Technicians behaved politely and professionally. We are very pleased with the job done and we would confidently recommend this company for HVAC service.
Lover ofcars
Jan 31, 2025
Woke up to no hot water and immediately called Superior HVAC Service. Hunter arrived on time, quickly diagnosed the issue with my tankless water heater, and had it working again in no time. He even did a quick check on my furnace to make sure everything was running smoothly. I really appreciated his professionalism and attention to detail!
Kyla Jubelle Bendo
Oct 18, 2025
Impeccable service from Superior HVAC Heating and Air Conditioning water heater whisperers! Plumber named Daniel fixed my leaky unit AND upgraded the valves. My showers now rival Niagara Falls. 10/10 would flood again.
We will deliver a Boiler High Efficiency Propane Gas to any of these cities
Jun 05, 2025
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