Hearth dampers are hearth-shielding devices that happen to be used within HVAC methods. They may be intended to stop the hearth from spreading with the ducts. In a established temperature, the hearth damper shuts and types a barrier that forestalls the fire from spreading throughout the ducts. Compliance and Security: https://air-control-dampers-for-h80122.blogolenta.com/33676543/5-easy-facts-about-air-control-dampers-for-hot-climates-described