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
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
4.9/5
1200 reviews
Jami Carl
Dec 12, 2023
I hired their services and didn't regret it a day. At the end of the day, they double-checked everything and charged a fair price.
Наталья Наталья
Feb 7, 2025
I noticed my energy bills were creeping up, and my furnace wasn’t heating the house as efficiently as before. Kevin from Superior HVAC Service came out and thoroughly inspected the system. He quickly identified that the heat exchanger was partially clogged, reducing airflow and performance. He cleaned it up, replaced a worn-out filter, and recalibrated the thermostat for better efficiency. He took the time to explain everything clearly and even gave me tips on maintaining the system to prevent future issues. The pricing was upfront, with no surprises, and my home feels much warmer now. Highly recommend their expertise and professionalism!
Sir Mchumphrey Cantillana
Feb 8, 2025
Superior HVAC is just amazing. My furnace was swiftly, expertly, and thoroughly explainedly fixed by Cole. Thank you so much, team!
Charles Hendrich “cha” Antipuesto
Jan 29, 2025
Huge thanks to Jacob of Superior HVAC and air conditioning for your prompt action in replacing parts of my old furnace. It runs like it was bought yesterday. Good job!
Fatima Roncalis
Jul 16, 2025
Service was excellent! Their tech guy Reard diagnosed a capacitor issue and replaced it promptly. Air is flowing strong again. Great experience with Superior HVAC, Heating and Air Conditioning
S B
Jun 14, 2025
Thank you to Superior and the wonderful, knowledgeable and friendly technician they sent.We called and had an appointment immediately.Great service!
Chelsea Margarette Kouji Talosig
Jul 10, 2025
Leaky water heater fixed ASAP. Courteous and knowledgeable tech guy named Daniel.Would definitely call them again. 5 stars for Superior HVAC, Heating and Air Conditioning
Vie Jalipa
Jul 17, 2025
AC stopped cooling during peak summer. Their tech guy named Jemmar arrived same day, replaced a faulty capacitor, and had it running cold fast. Professional, responsive, and fairly priced. Awesome team Superior HVAC, Heating and Air Conditioning
We will deliver Boilers Propane Navien gas to any of these cities
Dec 12, 2023
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