Fully-modulating input with 10:1 turn-down ratio eliminates energy waste.
Suitable for high altitudes up to 10,000 ft (3,000 m) with no power loss and automatic software vent length adjustment.
Extremely quiet operation; quieter than most refrigerators.
Get the 150 000 BTU Viessmann Boiler 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 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 150 000 BTU from us?
9.7/10
215 reviews
4.9/5
1180 reviews
Owen York
May 01, 2026
We woke up to a freezing house on a Sunday morning. I called Superior HVAC and they had Mike out to us within two hours. Our 18-year-old furnace finally gave out, but they managed to get a new one installed that exact same afternoon. Incredible service!
Mary Paul
Feb 03, 2026
Superior HVAC Sarnia helped fix my furnace when it suddenly stopped heating the house. They responded quickly, diagnosed the issue right away, and explained what needed to be repaired before starting. The furnace was up and running the same day, and the pricing was fair
Spiro Parashis
Jan 24, 2026
I had no clue what was wrong but they came in and were super easy to book, very cheap in comparison to other companies but I’d say they’re worth three times the amount I paid. I cannot recommend them enough. If you want good quality work. Ask them
We will deliver Viessmann 150 000 BTU Boilers to any of these cities
May 01, 2026
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