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
Reach out to us to place an order for an appliance. Our team will guide you in selecting the optimal model that will meet all your requirements.
Arrival of a technician
Once you've placed your order, one of our technicians will arrange a site inspection to go over all the details with you.
Delivery and installation work
We will bring the unit to your home and install it carefully and precisely to ensure it performs at its best.
Get a warranty
Your appliance comes with a warranty, and once it expires, we offer post-warranty services to help with maintenance.
Reviews about us
9.7/10
215 reviews
4.8/5
reviews
Erika Jane Lazara
Jul 24, 2025
Drainage pipe replacement handled professionally. Great diagnostics and execution. Their tech named Matthew was nice and arrived on time. Water now flows as it should. Will hire again Superior Plumbing and Heating.
Carl Antivola
Feb 08, 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!
sana hourani
Jan 31, 2025
Outstanding Service!I had a concern with my AC unit, and Superior HVAC did not disappoint. Sarah was prompt, courteous, and fixed the issue in no time. She even took the time to clean the unit and check for any potential future issues. I couldn’t be happier with the service I received.
Mikkee Roxane Dungao
Oct 21, 2025
Water heater was fixed perfectl, provided excellent service and a smooth repair hot showered. Reliable and knowledgeable service by techinician Jemmar. Highly recommended. Thank you for your service.
Ángeles TC
Feb 08, 2025
Alec was a lifesaver when our water heater suddenly stopped working. He replaced it the same day, and now everything runs perfectly!
Corey Wachtel
Nov 18, 2025
Ryan from Superior HVAC Service performed a full duct cleaning and balanced airflow through each vent. The house feels evenly heated for the first time this winter.
Jul 24, 2025
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