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BatmanDIY 04-15-2010 03:56 PM

Window A/C Unit installed in a wall
I'm looking to install and window a/c unit on the side of my house in a wall. i was woundering if anyone done thi before and had any thoughts? alos would i have to install a header and everything like i would with a window? What kind of supports if any should i have for the a/c unit? thank you

Scuba_Dave 04-15-2010 04:00 PM

I installed 2 units in wall at my last house, one was a window unit
There was an exisiting hole in the wall from an old AC

This house I have built 2 into the wall
I built a framed opening much like you would for a window
So yes, header & a 2x fully supported w/cripple studs for the AC to sit on

I'll be building insulated framed/trimmed boxes to cover them from the inside in the winter

BatmanDIY 04-15-2010 04:04 PM

what do you mean by a crippled stud. i framed things out before and installed windows before so i can fram out the opening pretty easy but i just didn't know what you meant by a cripple stud. thank you

Scuba_Dave 04-15-2010 04:08 PM

For a small AC only 2 cripple studs under the sill plate is probably needed
Also called jack studs & maybe other names...

Yoyizit 04-15-2010 04:25 PM

The header can be 2 ea. 2x4s on edge.

troubleseeker 04-16-2010 10:36 AM

Frame it like a window per Scuba Dave's sketch.
Just on a techincal note. Installing the unit in the wall will often violate the code restriction against mechanical equipment in the lot's side line setbacks. If the wall is in your back yard, no problem. This is done all the time, mostly with no problems, but I know of neighbors who have filed complaints against this when the unit happened to be at their adjacent bedroom window and they did not like hearing it; just a thought if you have cranky neighbors.

BatmanDIY 04-16-2010 05:21 PM

thank you for all the nsight and help. troubleeeker thank you for the advaice about the code and neighbors. ill be installing it on the side of my house above my garage. i kind of live in a country area. my clouset neightbor is over acre away so i do not think ill get complaints form them but thank you for the advice i will keep that in mind if i ever have to do it for someone else. thanks again

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