Integrated ECM pump and DHW diverter valve on all models
Modulating Combustion up to 11:1
Small zone valve systems may not require an additional pump or a low loss header
Easy service access and quick component connections
Get the Residential Boiler NTI in just a few steps
Make an order
Contact us to buy a new boiler. Our team will guide you every step of the way and help you choose the right model.
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
Our warranty covers various parts and services, and even after its expiration, we provide reliable post-warranty services.
Why should you buy NTI Residential Boilers from us?
9.7/10
215 reviews
4.8/5
reviews
Zenaida Arahan
Nov 01, 2025
Superior HVAC Heating and AirConditioning replaced my water boiler fast and professionally. The tech named Farid was neat, knowledgeable, and friendly. Excellent customer experience from start to finish. Highly recommend!
May Joy Vallejo
Oct 31, 2025
Superior HVAC Heating and AirConditioningprovided outstanding water heater repair service. The technician named Daniel was prompt, courteous, and completed the job efficiently. I appreciated their professionalism and transparent pricing. Will hire again.
Beth g
Oct 27, 2025
Justin from Superior HVAC Service ran a combustion analysis on our gas furnace. He adjusted the air-to-fuel ratio and optimized performance. It runs better than it has in years.
Maritzy Vanessa Cruz Nah
Feb 04, 2025
Kurtis repaired my air handler, and the process was smooth and stress-free.
Mack
Dec 23, 2025
My gas furnace stopped working in the middle of winter. Superior HVAC came and installed their new Lennox furnace and were extremely professional. House is warm again thank you!
Daniel Rizak
Jan 30, 2025
I had trouble with my tankless water heater, so I reached out to Superior HVAC Service. Farid arrived promptly, diagnosed the issue right away, and had it running perfectly in no time. He even took a quick look at my furnace to make sure everything was in good shape. Super professional and efficient!
Keen Minir
Dec 19, 2025
Highly recommended thanks to Jack came in and fixed my leak!
We will deliver Residential NTI Boiler to any of these cities
Nov 01, 2025
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