Gas dryer - combustion air

Old 09-10-03, 07:30 AM
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Gas dryer - combustion air

Our washer and gas dryer are installed in a relatively large (6'x3'x8') closet on the second floor. It has solid bi-fold doors.

My question: Is it necessary to leave the doors open when running the dryer? At what point is a closet large enough to provide enough air with the doors closed? If I need to install a vent(s), should it be at the top or bottom of the door?


Old 09-10-03, 02:20 PM
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The actual number depends on how many BTUs the dryer provides. The short answer is that the closet you have is to small. Leave the doors open.
Old 09-10-03, 06:08 PM
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Hello Mark. Welcome to my Gas Appliances forum.

When there is doubt, leave the doors opened, as recommend by brickeyee.

To answer your question in general terms, a room without vents in the walls and or in the doors, to provide intake air for combustion, should always be considered too small, regardless of the rooms size.

Dryers use plenty of air. For both combustion and exhaustion. All the needed air for both comes from within the room and or area in which the dryer is installed.

If there are no vents installed in the walls, usually they are at floor level or none intalled in the doors, it is then presumed, rightly or wrongly, that the doors will remain opened while the machines are in operation.

Which might not be the case nor be the case in your home. Therefore, without an inspection by a licensed professional and or the gas suppliers representatives approval of the conditions, best to leave the doors opened.

If you need further assistance, use the REPLY button to add any additional information or ask additional questions. Doing so will automatically keep your question at the top of the forum list.

Regards & Good Luck. Sharp Advice
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