Example showing wrong design and materials for that aplication, using dark plastic covered flex mostly used under houses with well ventile crow space like mobile homes. Attick aplication should use silver covered flex to reflect heat from attics, also shows atached to a distribution box, which is a no no where I am, here should be atached to a main trunk line and runs shouldn't be more than 12 Ft. longer runs shoud be insulated round metal duct and can have that 12 Ft flex at the end
Example showing wrong design and materials for that aplication, using dark plastic covered flex mostly used under houses with well ventile crow space like mobile homes. Attick aplication should use silver covered flex to reflect heat from attics, also shows atached to a distribution box, which is a no no where I am, here should be atached to a main trunk line and runs shouldn't be more than 12 Ft. longer runs shoud be insulated round metal duct and can have that 12 Ft flex at the end
suntraker 2 days ago