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 Navienās innovative heat exchanger design is ASMEāCertified,āHā 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 Navienās innovative heat exchanger design is ASMEāCertified,āHā 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'; 3ā up to 150ā (including schedule 40 PVC)
The sophisticated gas flow control system provides a high turndown ratio which reduces energy waste and excessive boiler cycling
Buy new Propane Boiler Navien 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
After the assessment, we will deliver the boiler to you. Our experts will carry out the installation efficiently and professionally.
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 Propane gas Navien from us?
9.7/10
215 reviews
5/5
1238 reviews
Carl Antivola
Feb 08, 2025
I was having trouble keeping my house warm, so I called Superior HVAC Service. Ian arrived right on schedule, quickly figured out the issue, and had everything fixed before I knew it. He even checked my water heater to ensure it was working well. Great serviceādefinitely recommend!
Richard Snyder
Aug 20, 2025
Curtis called ahead and arrived at the time set. He was very professional and friendly.He did his work and gave me useful advice.I was left with options and time to consider choices.I recommend him for his work and ethics.
Kimberly Gonzaga R.
Jul 05, 2025
Water heater leakingārepaired same day. Clear communication with their tech guy named Drewand clean work. No more worries with Superior HVAC, Heating and Air Conditioning
Keith Emmanuel
Jan 30, 2025
Had an issue with my furnace not heating well, so I called Superior HVAC Service. Cole was the technician they sent, and he did a great job. He found the problem fast, got it fixed, and even made sure my water heater was running efficiently before he left. Super professional and friendly!
gurleen kaur
Feb 10, 2025
My boiler started making strange noises, so I contacted Superior HVAC Service. Farid arrived on time, diagnosed the issue right away, and had it repaired quickly. He even checked my furnace to ensure everything else was working properly. Excellent service from a knowledgeable technician!
Elizabeth Janik
Jan 10, 2025
Hired for a water heater diagnosis - did an excellent job! George was very responsiveand was able to provide results. All around, great customer service!
gerardo albeto maycruz
Feb 03, 2025
Reard fixed our boiler during an emergency, and I couldnāt be more grateful. His speed, skill, and professionalism were incredible
Rita Tarey
Oct 18, 2025
My furnace repair pulled a āno heatā stunt. Superior HVAC Heating and Air Conditioning 24/7 team arrived faster than pizza delivery! Now itās roasting like a campfire. Standing ovation service from Michael the plumber.
We will deliver Boilers Propane Navien gas to any of these cities
Feb 08, 2025
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