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 120 000 BTU Viessmann Boiler in just a few steps
Make an order
Order your new boiler today by contacting us. Our dedicated customer support team will assist 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 will deliver the boiler to you. Our team will handle the installation with efficiency and professionalism, ensuring a seamless setup.
Get a warranty
We offer a warranty that covers different parts and services. Even after the warranty expires, you can rely on our post-warranty services.
Why should you buy a Boiler Viessmann 120 000 BTU from us?
9.7/10
215 reviews
4.9/5
1180 reviews
Hugo Idle
May 24, 2026
Our air conditioner started leaking water around the indoor unit and we called Superior HVAC immediately. The technician unclogged the condensate drain line and cleaned the surrounding components. He explained what caused the backup and how to avoid it in the future. Everything has been working properly since then
yo vendo
May 21, 2026
Excellent service from start to finish. The team was professional, punctual, and completed the air conditioning installation quickly and efficiently. They took the time to explain everything clearly, kept the work area clean, and made sure the system was working perfectly before leaving. Very friendly and easy to deal with. I’m very satisfied with the overall experience and would definitely recommend them to anyone looking for reliable HVAC service.
Rosina Mcdade
May 11, 2026
Superior HVAC handled our air conditioner maintenance perfectly. Honest service, no pressure, and very professional
Finn Adler
May 07, 2026
Fast response when my AC wouldn't turn on. The technician was friendly and clearly knew what they were doing. Problem solved quickly!
Tom Corley
May 05, 2026
Drew is a really cool guy 👍
Lily Collins
Apr 29, 2026
Superior HVAC installed my AC unit, and the service was outstanding. The team worked efficiently and cleaned up afterward. The installation was done perfectly. Highly recommend them.
david fraser
Apr 15, 2026
Great job and the heat pump is amazing. Great job Nic.DF Stouffville
Krista Gaereminck
Jan 27, 2026
This was for my mom, she said they were fast and efficient
Janice Hurlbut
Jan 26, 2026
I would give Superior HAVAC a 4.5because the service was very good. Our furnace broke on one of the coldest days in the winter and they sent a technician as soon as they were able in the morning after a call to them at 8pm the previous evening. Nick the technicianfrom Superior HVAC was courteous, efficient, professional and provided a clear explanation about what he thoughtthe problems could be and possible solutions. The furnace was about 20 years old so we opted to get a new furnace. Nick spoke to his supervisor to arrange for a new furnace to be installed ASAP on the same day. The furnace was installed during a snow storm but the installers were also very professional and did an excellent job. Fortunately we had heat that evening before another freezing day and another big snow storm.
Cory Macey
Jan 23, 2026
Friendly and knowledgeable
KEN YOO
Apr 25, 2026
Thank you for handling the work diligently and responsibly.
Kelly Slover
Mar 21, 2026
Called about a furnace failure after 5 on a Friday and they sent someone within 3 hours! While it was a simple fix, they explained everything, told me how to prevent it from happening again, and only charged me the diagnostic fee.
We will deliver Viessmann 120 000 BTU Boilers to any of these cities
May 24, 2026
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