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
1173 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!
Chloe Brockington
Feb 27, 2026
We had a very good experience with Tyler. After a worrying late night gas leak on one of our pipes, Superior HVAC were able to come round almost immediately the next morning to diagnose and fix the issue same day. Thank you!
Josh Foster
Jan 22, 2026
Excellent customer service while fixing furnace.
Aaron F
Feb 08, 2026
Superior HVAC Service, Heating & Air Conditioning St. Catharines provided fast and reliable furnace service. The technician explained the issue clearly, completed the repair without delays, and made sure the heating system was operating properly before finishing the job.
lilah
Feb 03, 2026
I contacted Superior HVAC Gatineau for a furnace issue during cold weather, and the service was excellent. The technician was knowledgeable, replaced the faulty part, and tested the system thoroughly before leaving. Fair pricing and very professional service.
Oct 28, 2025
Ajax