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
4.8/5
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!
Kent Gilroy
Feb 24, 2026
Hot Water Heater rusted out and leaked in my basement. Aaron and the team at Superior responded within hours and not only inspected and quoted the replacement but were able to decommission and install the new water heater within the same day. The installation team was professional and explained everything. Really happy with the whole experience!
jey trimble
Dec 17, 2025
My furnace stopped working on a very cold day, superior hvac was super quick to send out Ryan,who was super friendly and knowledgeable. He quickly diagnosed the problem and was able to have it repaired and running same day !
Kielan Hayward
Jan 22, 2026
Excellent service, completely fixed my furnace. Will be a returning customer.
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!
Oct 28, 2025
Ajax