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
4.9/5
1180 reviews
JA DJ
Jul 25, 2025
Expansion tank installed quickly and correctly. Tech named Raz explained purpose clearly. Now our water pressure is consistent. Great service all around Superior Plumbing and Heating
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!
Igor Kuritsyn
Feb 7, 2025
I noticed our energy bills were climbing, and the furnace wasn’t heating as efficiently as before. Kevin from Superior HVAC Service came out for an inspection and found that a clogged filter and dirty burners were reducing efficiency. He cleaned everything, replaced the filter, and fine-tuned the system to run more effectively. Not only is the house warmer now, but I can already tell the system is working less to maintain the temperature. Excellent service—professional, knowledgeable, and thorough!
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Feb 7, 2025
When my water heater stopped working, I called Superior HVAC Service. Kevin arrived on time, quickly found the issue, and had it fixed before I knew it. He even checked my furnace to make sure everything was running efficiently. The service was fast, reliable, and stress-free!
daniel kieta
Mar 13, 2025
Of course, our heater stopped working on the coldest night of the year. I called Superior HVAC & Plumbing Services, and Conner was at our house within hours. He found the issue fast, replaced a faulty ignitor, and had the heat back on before the house got too cold. A real lifesaver!
Justine V
Feb 6, 2025
Ian from Superior HVAC services recently replaced my furnace, and I couldn't be more satisfied with the experience. From the initial inspection to the installation, he was professional, knowledgeable, and efficient. Outstanding work!
Sheila Kennedy
Mar 19, 2025
We had a problem with our furnace this morning. Curtis came out to fix it. He was very knowledgeable and polite. He had it up and working in good time. Thank you Curtis 😊
patricia dayrit
Jul 8, 2025
I'm very pleased with the quick fix provided by Superior HVAC, Heating and Air Conditioning, and technician Drew's politeness and prompt restoration of hot water.
We will deliver a High-Efficiency Boiler For Home to any of these cities
Jul 25, 2025
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