Hearth dampers are fire-guarding devices that happen to be applied in HVAC techniques. They're meant to halt the fire from spreading from the ducts. At a established temperature, the fireplace damper shuts and types a barrier that stops the fire from spreading from the ducts. Electronic answers that strengthen Power https://mylesndrfs.bloginder.com/37380467/the-ultimate-guide-to-air-control-dampers-for-hot-climates