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 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
After confirming your order, our technician will arrive at the appointed time to inspect the property and clarify the necessary details.
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 Boiler from us?
9.7/10
215 reviews
4.9/5
1180 reviews
Boss VIC
Feb 7, 2025
So glad I called Superior HVAC services they send Ian the same day to diagnose my water heater, he is very thorough and explained everything on what needs to be done. Highly recommended
Nestor Sales. Florece Jr
Feb 5, 2025
Their technician named Kurtis even diagnosed my thermostat issue within minutes and repaired it efficiently. Very professional and knowledgeable! Awesome Superior HVAC Services!
kate baltazar
Feb 4, 2025
I had a great experience with Superior HVAC ! Ian diagnosed the problem with my furnace immediately, explained every step of the repair, and had it running perfectly in no time. The service was top-notch, and their pricing was very reasonable. I’ll definitely be calling them again. Huge thanks to the team!
Brody Doerr
Mar 27, 2025
Every Spring I like to test out my AC system to make sure all headaches are avoided before the busy season this year it would not start… I called superior HVAc out they had Conner at my door with in 2 hrs. He tested my system for about an hour and found a coolant leak after a recharge of my system my Air Conditioner started working again!!! Highly recommend honest guy ask for Conner
Carl Antivola
Feb 8, 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 service—definitely recommend!
Josh Taylor
Mar 27, 2025
The guys who came to my house were great. They got the job done on time and were respectful and professional.
Angelmae Lebico
Mar 13, 2025
Excellent service! My furnace was repaired quickly and efficiently. The technician was very knowledgeable and his name is Alvin. Thank you Superior HVAC
We will deliver a Boiler High Efficiency to any of these cities
Feb 7, 2025
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