Dampers
Dampers keep cold air out. When your chimney is not in use, the outside air can easily work its way in by coming down through the chimney. This makes your home cold and uncomfortable, and it causes your heating bills to increase fast.
Dampers
Butterfly flat dish dampers
Butterfly flat dish dampers are the most common type of damper in HVAC systems. They’re often used in residential and commercial air conditioning systems as well as in heating ducts. The butterfly flat dish damper is shaped like a circle with two semicircles attached to it. The semicircles are called flaps, and they open and close to direct airflow through a system.
