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
1180 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.
Ishdeep
Feb 10, 2025
I noticed my boiler wasn’t heating properly, so I reached out to Superior HVAC Service. Ian came by, quickly diagnosed the issue, and had it fixed in no time. He also made sure my tankless water heater was working efficiently before he left. Great service—super professional and knowledgeable!
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!
angelo bernaga
Jul 10, 2025
Our softener wasn’t regenerating—tech guy named Daniel arrived on time, adjusted the settings, and replaced a valve. Now everything’s back to normal. Great service with Superior HVAC and services
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!
Robert Beaucaire
Jul 27, 2025
Central A/C stopped working Thursday night. Contacted Superior Friday morning and sent a technician within a few hours. They confirmed the worst but were able to install a brand new one the next day. The technicians were professional and courtious. Excellent service! I would recommend them any day!
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 Navien gas to any of these cities
Dec 12, 2023
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