NHB integrated control provides industry-leading options and features including adjustable heat capacity, temp boost for outdoor reset control, adjustable anti-cycle timer and freeze protection.
The condensing technology of the dual stainless steel heat exchangers saves energy, reduces greenhouse gasses.
1/2" gas pipe capability up to 24' (subject to local codes). Cuts installation time, no need to install new gas lines for retrofit applications.
The sophisticated gas flow control system provides a high turndown ratio which reduces energy waste and excessive boiler cycling.
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 150 000 BTU Boiler Gas in just a few steps
Make an order
Contact us to start the process of purchasing a new boiler. Our customer support team will guide 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'll deliver the boiler to your location, and our experienced experts will handle the installation efficiently and professionally.
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 a Gas Boiler 150 000 BTU from us?
9.7/10
215 reviews
5/5
1183 reviews
Max's
Oct 31, 2025
I scheduled water boiler maintenance with Superior HVAC, and it was excellent. The technician named Farid was thorough, professional, and explained everything clearly. Iām confident my heater will last longer now.
Maya Singh
Dec 17, 2025
Ryan from Superior HVAC fixed our gas value in our furance! just in time for winter thank you so much again!
Clayton Devitt
Jan 10, 2026
Superior HVAC replaced my 17 year old furnace. Very quick and easy !
Neelanjan Dalvi
Feb 08, 2026
Superior HVAC Service, Heating & Air Conditioning St. Catharines repaired my furnace when it stopped heating properly. They responded quickly, arrived on time, and clearly explained what needed to be fixed. The furnace was running perfectly the same day.
Kia Gaines
Mar 14, 2026
If you want to remove negative reviews from your Google Business, contact me via my profile; my contact details are listed there. After work you can pay..
We will deliver 150 000 BTU Gas Boilers to any of these cities
Oct 31, 2025
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