Microwave/Hood Combo and Venting...
Most makes of over-the-range microwave ovens can be either vented outside or inside. Check your owner's manual in case some sort of accessory kit is required for the conversion. Of course, you'll also need a hole in the wall with usually only a short run to the outdoors.
The Appliance Information Site
[This message has been edited by DanO (edited February 20, 2003).]