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
4.8/5
reviews
Beth g
Oct 27, 2025
Justin from Superior HVAC Service ran a combustion analysis on our gas furnace. He adjusted the air-to-fuel ratio and optimized performance. It runs better than it has in years.
Zebulon Whitehead
Oct 20, 2023
When it comes to heating systems, they are the best technicians I've ever worked with. We scheduled boiler installation. The whole process from ordering to installing my new boiler was smooth. Thanks!
Hubert Francis Magos
Aug 05, 2025
Both of the technicians who came to my house are professional and knowledgeable. They were able to answer my questions on how to take care of our AC systems.
Daniel Rizak
Jan 30, 2025
I had trouble with my tankless water heater, so I reached out to Superior HVAC Service. Farid arrived promptly, diagnosed the issue right away, and had it running perfectly in no time. He even took a quick look at my furnace to make sure everything was in good shape. Super professional and efficient!
We will deliver Viessmann 150 000 BTU Boilers to any of these cities
Oct 27, 2025
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