I am installing a over the oven microwave and was looking at venting it.Do i need a minumum 6" wide straight galvinized pipe or will 4" still work ok?
Can i give it a 90 degree and then vent it out through the sofitt area with one of the venting kits.Any other venting options? Roof not option right now.
Any info is appreciated.
if this is an actual vented microwave and not merely a recirculating (with grease filter) vent I would suggest you follow the manufacturer's recommendations. it is typically contained in the owner's manual. if you do not have a manual go to the manufacturer's website.
"You get what you pay for, and sometimes free costs more!"