Range Hood Into Attic

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.

Range hood into attic. Range hoods m1503 1 general. 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. Once you have it marked remove the hood and cut a hole in the wall or ceiling. Insulate the duct in the attic.

Duct already wrapped in insulation at home centers. The duct serving the hood shall have a smooth interior surface shall be air tight and shall be equipped with a backdraft damper. The duct is cold. 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. First remember that there is a lot of grease and moisture in that exhaust just think of how dirty that filter gets. There are actually a lot of interesting questions there vern. If you are adding a new range hood over your stove and plan to vent it out through the roof you will need to get an adequately sized duct that will run all the way up through the ceiling into the attic and all the way up through the rooftop where it will be connected to your roof top vent.

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. Indoor air is exfiltrating through your range hood exhaust duct when the fan is not in use. The best exhaust fan venting is through smooth rigid ducts with taped joints and screwed to a special vent hood. Water condenses on the cold pipe and drips.

It is definitely not a good idea to vent a range hood into the attic. Ideally the range hood should be vented to the outside usually through the roof. This requires installing some ductwork. The duct serving the hood shall have a smooth interior surface shall be air tight and shall be equipped with a backdraft damper ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the building.

Ducts serving range hoods shall not terminate in an attic or crawl space or areas inside the building. You can find 4 in.