Easy service access and quick component connections
Small zone valve systems may not require an additional pump or a low loss header
Wi-Fi on board for remote control and monitoring
Models up to 96% AFUE
Integrated ECM pump and DHW diverter valve on all models
Get the 120 000 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
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'll deliver the boiler to your location, and our experienced experts will handle the installation efficiently and professionally.
Get a warranty
You receive a warranty that covers various components and services, and when it ends, you can count on our post-warranty services.
Why should you buy a Gas Boiler 120 000 BTU from us?
9.7/10
215 reviews
4.9/5
1214 reviews
TARUN R
Jul 24, 2026
Very respectful technician who explained the repair in terms I could understand. I felt informed throughout the visit
Jonas billy
Jul 23, 2026
We had a musty smell coming from our vents every time the AC ran. Technician found mold growth in the ductwork from a drainage issue, fixed the drainage, and cleaned the ducts. Smell is completely gone.
Haqeeqina Bano
Jul 22, 2026
The technician found a refrigerant leak that another company missed. Honest, knowledgeable, and fairly priced.
Dan Drakeford
Jul 08, 2026
Great job, fast service, thank you!
Deb Oldfield
Jul 07, 2026
Overall, I had a good experience. The repair turned out to be much more complicated than anyone expected, and in the end my air conditioner needed to be replaced rather than repaired. While it was frustrating to be without A/C during an extreme heat wave, the team was responsive, kept me informed, and worked to get everything resolved. The new unit is working great, and I'm very happy with the final result. I appreciate their professionalism and would recommend them.
Chandra Vanderboom
Jul 07, 2026
Superior was quick to service my broken water heater; next-day service and I had a new heater up and running. Very professional and friendly.
hirdthis
Jul 02, 2026
Technician came and accessed the problem installed new unit same day. Highly recommend.
Rachel Jacob
Jul 23, 2026
Called first thing in the morning when our AC wouldn't turn on at all. Turned out to be a tripped breaker from a bad capacitor. Fixed within the hour, and the house was cool again before the afternoon heat set in.
shree sathya sai prasad
Jul 22, 2026
They replaced a worn out condenser fan motor on our AC unit. Quick, efficient, and reasonably priced.
Binu
Jul 16, 2026
Replaced a cracked condensate pan under our attic air handler before it caused water damage. Quick response time
Duval Jenness
Jun 07, 2026
Superior HVAC Service did a thorough seasonal maintenance tune-up that brought our aging system back to peak performance. The technician chemically cleaned the heavily fouled outdoor condenser coils, checked the compressor amp draw against factory specs, and provided a comprehensive digital health report of our system.
David Milleri
Apr 30, 2026
We recently upgraded to a heat pump installation in Ontario and chose Superior HVAC. They answered all our questions and handled the install professionally. The system is quiet and efficient. Very satisfied.
We will deliver 120 000 BTU Gas Boilers to any of these cities
Jul 24, 2026
Ajax