Fits any home and budget with high performance at an attractive price.
Extremely quiet operation; quieter than most refrigerators.
Low-emission combustion for environmentally-friendly operation. Less than 20 ppm NOx (at 3% O2).
Easy piping due to two sets of tappings, along with built-in pump and diverter.
Reliable on-demand domestic hot water with Vitodens 100-W, B1KE combi models.
Get the Condensing Gas Boiler Viessmann 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
After the assessment, we will deliver the boiler to you. Our experts will carry out 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 Condensing Gas Boiler Viessmann from us?
9.7/10
215 reviews
5/5
1163 reviews
Mary Anne Compas
Oct 28, 2025
Superior HVAC Heating and AirConditioning helped me select a new furnace and installed it flawlessly. Their team arrived on time and explained the settings clearly. Very happy with their expertise and friendly approach. Thanks to Farid, the tech guy. Definitely recommend for your HVAC needs!
Tibor Bardos
Mar 27, 2026
My furnace of 20+ years stopped working. Mathew was at the house by 1pm and detailed what we needed to replace the furnace. The Superior team had a new one installed by 9pm the same day! Great service and clean up.
Jack Garey
Jan 22, 2026
Great service. Awesome job.
A M
Feb 08, 2026
I contacted Superior HVAC Service, Heating & Air Conditioning St. Catharines for a furnace issue during cold weather. The technician diagnosed a faulty part, completed the repair efficiently, and tested the system thoroughly before leaving. Professional service and fair pricing.
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!
Oct 28, 2025
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