Integrated ECM pump and DHW diverter valve on all models
Small zone valve systems may not require an additional pump or a low loss header
Buy new Boiler Only Heating NTI 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
Once your order is confirmed, we will promptly visit your location and conduct a thorough inspection, ensuring all necessary details are clear.
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
We offer a warranty that covers different parts and services. Even after the warranty expires, you can rely on our post-warranty services.
Why should you buy a Heat Only Boiler NTI from us?
9.7/10
215 reviews
4.8/5
reviews
Joe Schäefchen
Dec 17, 2025
Beyond ecstatic with the work this company has provided my family in one of the coldest times of the year… Last night my furnace stopped working so I called a couple of different places and landed on superior. Their customer service was amazing and it wasn’t long until I had a technician at my door to help, after just an hour of trying to find the problem the HVAC tech I was provided (Kurtis) figured out that the wiring for the ignition had gone bad. He brought everything he needed to possibly fix the issue so he didn’t even need to go get parts. Within just a couple hours of calling, my furnace was working just as good as before. I will be recommending superior to anyone I know because I’m very impressed with the price and support throughout this whole situation.
Charlotte Chen
Jan 17, 2026
Superior HVAC was able to help me fix my furnace. I called and they arrived at the same day and diagnosed my furnace. I needed a gas value and they did the work later that night ! I highly recommend!
Brooklynn Legg
Jan 19, 2026
Superior HVAC was able to replace my 15 year old furnace. The whole process was very quick and professional!
We will deliver Heat Only NTI Boilers to any of these cities
Dec 17, 2025
Ajax