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 Residential 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 will deliver the boiler to you. Our team will handle the installation with efficiency and professionalism, ensuring a seamless setup.
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 Residential High Efficiency Boiler from us?
9.7/10
215 reviews
5/5
1238 reviews
Diljot Mander
Nov 22, 2023
Jeremy came by, and answered all the questions, did a full inspection. Thanks Jeremy.
Deb C
Dec 03, 2024
After speaking to several companies this weekend, I reached out to Superior when my furnace gave out. Ian was there within a couple of hours, answered all my questions and explained everything patiently and thoroughly. I called them at 130 in the afternoon and had the new furnace installed and running by 8 pm. I would definitely recommend Superior to anyone who needs assistance quickly. Very satisfied.
Tankless installation was seamless! The tech named Michael worked cleanly and answered all my questions. Energy bills dropped—thank you! Impeccable service from Superior HVAC Heating and Air Conditioning💧
John rey Bula
Jul 10, 2025
Superior HVAC, Heating and Air Conditioning provided same-day repair of my leaking water heater, with clear communication from their technician named Tyler and clean work, giving me peace of mind.
Marius Iordache
Feb 17, 2025
Sean was fantastic! He arrived right on time, quickly diagnosed the issue with our electric furnace, and had it running perfectly in no time. Not only did he fix the problem, but he also took the time to answer all our questions and even taught us proper maintenance to keep it running smoothly. Professional, knowledgeable, and friendly—highly recommend Sean for any HVAC needs!
Thanya López
Jan 28, 2025
My thermostat wasn’t working correctly, so I contacted Superior HVAC. Ian replaced it with a modern one and repaired my water heater. I’m very satisfied with their efficient services.
We will deliver a High-Efficiency Boiler For Home to any of these cities
Nov 22, 2023
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