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
1201 reviews
Irenzo Roxas
Feb 7, 2025
I’m extremely satisfied with the boiler repair service I received. Ian, the technician from Superior HVAC Services, arrived promptly and got right to work. He was thorough and took the time to explain the issue with my boiler. Highly recommend!
Shesagui
Feb 5, 2025
George fixed my tankless water heater. I wouldn’t choose anyone else but Superior HVAC.
Harinder Kaur
Feb 4, 2025
Ian did a fantastic job diagnosing and replacing the gas valve on my water heater. He explained the whole process, and the pricing was very reasonable for the quality of work.
Roman May Arjona
Feb 7, 2025
Excellent service! Cole did and amazing job with our boiler, he came to fix it within one hour after we called, he explained the issue and he was so skilled
Lui Geronimo
Feb 11, 2025
service from superior hvac services was excellent! Ian replaced our water heater, and the entire process went seamlessly.
David Watson
May 28, 2025
Was able to diagnose the issue quickly and explain the problem clearly.
Renniezza Mae Timple
Mar 19, 2025
Shoutout to Neil of Superior Plumbing and Heating for making repairs on my sewage pump. Repairing process was fast and works well now.
We will deliver a Boiler High Efficiency to any of these cities
Feb 7, 2025
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