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
5/5
1173 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.
James Black
Feb 19, 2026
The team at Superior HVAC Service, Heating & Air Conditioningdid an amazing job replacing our old gas furnace. They were prompt, professional, and the installation was seamless. They kept the workspace clean and explained everything before they left. The new unit is efficient and quiet—highly recommend them!
TAEUK KIM
Feb 12, 2026
They provide solutions with really accurate and quick decisions, and they do their job so perfectly that I have high praise for them.
Fabio Nadvaro
Feb 20, 2026
We had an issue with poor airflow and uneven temperatures throughout our home, so we contacted Superior HVAC Cambridge for ductwork repair. They identified leaks in the ducts and sealed everything properly. The improvement was immediate — every room now feels comfortable. The team was punctual, professional, and very tidy. Highly recommend Superior HVAC Cambridge for any airflow or duct issues!
Tom Smith
Mar 18, 2026
Mike came to look at my broken well pump, he us getting us a new one tonight! Amazing service and will be calling for future needs
We will deliver Residential NTI Boiler to any of these cities
Nov 01, 2025
Ajax