Venting A Microwave Into The Attic

The ventilation system may lead to an exterior vent or it may simply recirculate air back into the kitchen.

Venting a microwave into the attic.

If you re tempted to vent your exhaust fan through an existing roof vent or even vent it into the attic don t do it. Second during cold winters you ll be blowing warm moist air onto a cold surface the roof vent and roof plywood. The old microwave did not. From where i viewed did not see any inside openings on the vent plimbing although i did not climb over to the vent and look on the backside.

Mstankiewicz marc stankiewicz july 10 2011 12 06am 8. I want to vent to the outside. This article describes the venting options for built in microwave ovens and microwave oven vent systems typically installed above a stovetop or range. Microwave oven vent installation suggestions.

A microwave oven designed to be mounted over a cooktop is usually equipped with a ventilation system to cope with the cooking odors smoke and moisture that rise from the cooking surface. The duct must be the sizes listed above for proper draw of air. If round ducting also note the following. Ideally the range hood should be vented to the outside usually through the roof.

It is definitely not a good idea to vent a range hood into the attic. Both smaller and larger vents than recommended decrease venting performance. Microwaves cannot be ducted into a common duct work. I agree with jonas.

Anyway i went into the attic and saw a nice vent line going from over the microwave up to but not out of the roof. First you ll partially block your roof vent with the piping reducing the flow of cooling air through your attic. We discuss the importance of venting to the exterior choice of vent components and materials and we refer to microwave oven manufacturers installation instructions. A rectangular to round transition adapter must be used.

Do not vent into an attic or crawl space. She said the vent was in the attic and again she was right. Chapter 5 section 505 1 exception 1. International mechanical code imc 2009.

First we do not have all the facts.