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.
Get your boiler 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
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
After the assessment, we will deliver the boiler to you. Our experts will carry out 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 Boiler from us?
9.7/10
215 reviews
4.9/5
1186 reviews
Gymea Lorraine Arahan
Nov 01, 2025
Tankless water heater maintenance by Superior HVAC Heating and AirConditioning was top-notch. Their tech named Tyler inspected every part thoroughly and optimized performance. Friendly technicians and fair prices. Very happy with my service.
Rosina Mcdade
May 11, 2026
Superior HVAC handled our air conditioner maintenance perfectly. Honest service, no pressure, and very professional
Analena Ruffolo
Mar 07, 2026
They fixed my furnace the same day I called. Highly recommended
Jack Garey
Jan 22, 2026
Great service. Awesome job.
morgan marshall
Dec 02, 2025
Our airflow was awful in our house. I called Superior HVAC Service and they showed up within 3 hours and performed a full duct cleaning and balanced airflow through each vent. The house feels evenly heated for the first time this winter. Ryan was also very helpful in showing us ways to reduce our duct blockage !
Nov 01, 2025
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