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.
Madison Maxey
Feb 10, 2026
Superior HVAC came to my houseonly hours after I called. They diagnosed my furnace and were able to replace it the same day! Highly recommend
Jacob Moon
Feb 12, 2026
Our old and tired furnace died in the morning in February and Elio had the new one installed by the afternoon. He was great about showing us the various models and helping us select one that was good for our budget. We are thrilled with our new one, and happy to have a warm house again in this chilly winter!
Mark Vano
Feb 20, 2026
We called Superior HVAC Cambridge for an air conditioner repair during the cold wave, and they responded incredibly fast. The technician quickly diagnosed the issue with our compressor and had it running the same day. He took the time to explain what went wrong and how to prevent it in the future. The service was honest, affordable, and professional from start to finish. If you need AC repairs, Superior HVAC Cambridge is the company to call!
Ulises Cavouto
Feb 21, 2026
I had a fantastic experience with Superior HVAC Service. Our furnace stopped working in the middle of a cold snap, and they sent a technician the same day. He was professional, explained the repairs clearly, and didn't try to upsell me on parts I didn't need. Highly recommended!
We will deliver Residential NTI Boiler to any of these cities
Nov 01, 2025
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