Range Hood Into Attic

Range hoods shall discharge to the outdoors through a single wall duct.

Range hood into attic.

Range hoods shall discharge to the outdoors through a single wall duct. Water condenses on the cold pipe and drips. It is definitely not a good idea to vent a range hood into the attic. Although this isn t always possible in attic crawl spaces you should always insulate the duct to prevent condensation problems.

Your vent hood will have places available for either attic or wall exhaust. Ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the building. The duct is cold. Once you have it marked remove the hood and cut a hole in the wall or ceiling.

Cover the hole that you are not using for exhaust and secure the hood to its final positioning to mark the location of the vent duct. Duct already wrapped in insulation at home centers. Range hoods m1503 1 general. The duct serving the hood shall have a smooth interior surface shall be air tight and shall be equipped with a backdraft damper.

First remember that there is a lot of grease and moisture in that exhaust just think of how dirty that filter gets. Insulate the duct in the attic. The number one disadvantage of a ductless range hood is that it is incapable of removing as many air contaminants as a range hood that vents outside. Indoor air is exfiltrating through your range hood exhaust duct when the fan is not in use.

Vern has a range hood on an inside wall and is wondering if he could just use the hollow wall cavity or should he line it and could he just vent into the attic because the attic itself is vented. There are actually a lot of interesting questions there vern. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Ideally the range hood should be vented to the outside usually through the roof.

You can find 4 in. This requires installing some ductwork.