Return Air Ducts:

Return Air Ducts

Return air ducts are important. Airflow through these ducts is ahnost always tugging action fan or blower. If return air corresponds to air in the room, the air will not be properly balanced. If there is more than return air than the incoming air, the room may have a negative pressure. Thus, the air inlet will need this room. In turn, the other rooms might be hungry for air. During the heating season, the rooms are sorely lacking air is too cold.

Duct return grilles should be placed in a stratified (static) airside premises. During the heating season, in this area on the floor. During the cooling season, this place is near the ceiling. Ideally, there should be two places for return air grilles. In all cases, the maximum distance from the front grille...

Thanks ->

Ref-Wiki.com -

Return Air Ducts