A backdraft damper permits the stream in one direction and will not change the route or decrease the flow. Meanwhile, the balancing damper uses rotating shutters to control airflow and speed. Go away a Reply It's important to have HVAC dampers inspected frequently to guarantee they are performing properly and https://air-control-dampers-for-h01122.yomoblog.com/43452171/air-control-dampers-for-hot-climates-an-overview