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toolbelt Tina · 07-11-2009, 06:02 PM

Not sure if this is the right forum. I hope someone might be able to help me.
I know there will be some vent construction experts lurking here.

I am venting my microwave to the rear. Unfortunately I have a stud from a load bearing wall right in the middle of the vent path.

I had built a wet wall against that wall for plumbing in the bathroom.I left the top part of the wall open and exposed. All my wires I have not stapled so I have room to maneuver.

I had thought a 4"flex vent was to be used and have since learned you need a rigid 6" round or 10" rectangular duct.

The load bearing wall has many electrical cables of different circuits running through it and a 3" stack so I can not install a header to carry the load.

The outside wall is less than three feet away.

I'd go straight up but it is a vaulted ceiling. My luck I'd hit smack in the middle of a beam, rafter or a truss.

Help if anyone has any suggestions I'll try to post some pictures.

.

toolbelt Tina · 07-11-2009, 06:14 PM

picture of what I am working with

http://www.diychatroom.com/members/t.../duct-problem/

Plumber101 · 07-11-2009, 06:24 PM

Are you going to be cooking with alot of steam or smoke?

Yamvmax · 07-11-2009, 07:42 PM

why not just recirculate? Change the charcoal filter every 6-12 mos.

toolbelt Tina · 07-11-2009, 07:55 PM

oops, see next msg

toolbelt Tina · 07-11-2009, 07:55 PM

Quote:

Originally Posted by Plumber101

Are you going to be cooking with alot of steam or smoke?

I never plan to burn my meals but hey you never know.
I would say steam and odors would be what I want to extract.

Red Squirrel · 07-11-2009, 08:34 PM

Not the best of options but I'm guessing you'll have a cabinet directly above the microwave? If yes you could reroute the duct around the beam inside the cabinet. You wont get much out of that cabinet though and not sure if this would be against any type of code as there is the possibility of that pipe getting hot from steam so you don't want it lingering around various surfaces/items.

toolbelt Tina · 07-11-2009, 08:47 PM

Quote:

Originally Posted by Red Squirrel

Not the best of options but I'm guessing you'll have a cabinet directly above the microwave? If yes you could reroute the duct around the beam inside the cabinet. You wont get much out of that cabinet though and not sure if this would be against any type of code as there is the possibility of that pipe getting hot from steam so you don't want it lingering around various surfaces/items.

Ok and how do I do this with which type of connections. Flat duct and fabricate myself?

thoughts?

Red Squirrel · 07-11-2009, 10:18 PM

My furnace has rectangular ducts that do some simple maneuver but for the stairs. They curve kinda like this: ~ Maybe two of these (smaller if they make em) could work. I suppose you could customize as well. Cut a slit in a venting to fit the stud, and wrap the stud with some kind of vapor barrier and duct tape (the aluminum type).

I'd wait and see if a real venting expert chimes in though, there may be a better way.

toolbelt Tina · 07-12-2009, 12:00 AM

Quote:

Originally Posted by Red Squirrel

I'd wait and see if a real venting expert chimes in though, there may be a better way.

I am hoping so too.
I want to finish the kitchen and the bathroom remodel and plus I need my microwave.

thanks Tina

toolbelt Tina · 07-12-2009, 07:40 PM

any other suggestions guys?

kenmac · 07-12-2009, 07:49 PM

do you have room for a larger ( than 4') corrugated type vent ?? You would be able to bend the corrugated pipe somewhat like the flex

toolbelt Tina · 07-12-2009, 10:16 PM

Quote:

Originally Posted by kenmac

do you have room for a larger ( than 4') corrugated type vent ?? You would be able to bend the corrugated pipe somewhat like the flex

you kind of lost me what are you proposing?

kenmac · 07-12-2009, 11:41 PM

do you have room for anything larger than 4'' ? They make make a chimney liner that can be snaked through tight areas & you can get it larger than 4''.. It's double wall used for venting furnaces through chimneys.. Just wondering if something like this would work for you

toolbelt Tina · 07-13-2009, 12:23 AM

Quote:

Originally Posted by kenmac

do you have room for anything larger than 4'' ? They make make a chimney liner that can be snaked through tight areas & you can get it larger than 4''.. It's double wall used for venting furnaces through chimneys.. Just wondering if something like this would work for you

i have the original wall plus the wet wall so yes larger than 4" plus I can fir it out if needed.