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
4.9/5
1190 reviews
Rudy Carr
Jun 11, 2026
Our sewage ejector pump in the basement suite died and sewage was pooling in the basin. Superior Plumbing pulled the old unit, cleaned the pit, installed a heavy-duty cast iron pump, and verified the check valve was operating perfectly.
Brenda McComb
Feb 06, 2026
Excellent service in very tough conditions!
Katrina Lueders
Jun 11, 2026
Our utility room utility sink was gurgling every time the washing machine discharged. The technician cut out a poorly installed sanitary tee, ran a dedicated vent line through the exterior wall, and eliminated the airlock completely.
Girish Vaidhya
Dec 24, 2025
Justin came and diagnosed my 15 year old furnace. The care was awesome and explained the new features that my furnace has! Thank you!
Nicolas Gumienik
Dec 24, 2025
Liam replaced me 20 year old furnace. The crew came within 6 hours and were very neat and tidy when installing !
Mia Turner
Apr 30, 2026
When my AC was not turning on, I was worried about a major repair. Superior HVAC quickly identified the issue and fixed it affordably. I appreciated their honesty. Definitely recommend.
We will deliver Residential NTI Boiler to any of these cities
Jun 11, 2026
Ajax