Backdraft dampers are made to avert backdrafts in HVAC units. They're put in in exhaust ducts to prevent the reverse circulation of air. Backdraft dampers are often put in in places exactly where damaging tension might arise, which include bogs and kitchens. Whilst numerous damper forms exist, they all serve https://aircontroldampersforengin46788.creacionblog.com/36262523/top-guidelines-of-air-control-dampers-for-hot-climates