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
1200 reviews
Fraice Anne Tamayo
Jul 16, 2025
Our old boiler is running like new. Skilled repair, great communication with their tech guy Reard. Excellent service with Superior HVAC, Heating and Air Conditioning
Eros Reine
Feb 6, 2025
I recently had my furnace repaired, and the experience was outstanding. Ian, the technician from superior HVAC services, arrived right on time, maintained a courteous demeanor throughout the visit, and clearly explained both the issue and the repair process. His expertise and attention to detail quickly restored my furnace to peak condition. I truly appreciate the prompt, professional service and wouldn’t hesitate to recommend this company for any heating needs.
Георгий Клименко
Feb 7, 2025
My elderly mother's furnace went out on a cold night. Superior HVAC Service prioritized her call and got someone out there within an hour. Mark was incredibly kind and patient, and he got the furnace working again quickly. I can't thank them enough!
Дима Бахметьев
Feb 5, 2025
Our AC wasn't cooling properly, and we called Superior HVAC Service. Chris arrived promptly, diagnosed a refrigerant leak, and had it repaired quickly and affordably. Great service and a fair price!
Ángeles TC
Feb 8, 2025
Alec was a lifesaver when our water heater suddenly stopped working. He replaced it the same day, and now everything runs perfectly!
ritchie mallari
Mar 11, 2025
Professional and efficient furnace repair.The tech guy named Cameron was knowledgeable and friendly.Five stars Superior HVAC
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 😊
Retchiel Escandor
Jul 16, 2025
Professional and courteous service for our boiler and furnace. Their tech guy named Drew really know his stuff. Highly recommended Superior HVAC and services. -
We will deliver a High-Efficiency Boiler For Home to any of these cities
Jul 16, 2025
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