Hearth dampers are fireplace-shielding devices which have been employed inside HVAC units. They are meant to halt the hearth from spreading in the ducts. At a set temperature, the fire damper shuts and forms a barrier that forestalls the hearth from spreading through the ducts. Industrial dampers: Deployed in factories https://aircontroldampersforhotcl57789.blogproducer.com/43969132/not-known-facts-about-air-control-dampers-for-hot-climates