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Home > Archive > Home Repair forum > April 2006 > Cut hole in cement block load bearing wall for window A/C?
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Cut hole in cement block load bearing wall for window A/C?
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| saintrick42@yahoo.com 2006-04-29, 10:21 pm |
| I have an attached garage with cement block outside wall that I would
like to cut a hole in large enough for a 15,000 - 20,000 btu window
a/c. Feasible??
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| Edwin Pawlowski 2006-04-29, 11:21 pm |
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<saintrick42@yahoo.com> wrote in message
news:1146359440.730556.222790@i40g2000cwc.googlegroups.com...
>I have an attached garage with cement block outside wall that I would
> like to cut a hole in large enough for a 15,000 - 20,000 btu window
> a/c. Feasible??
>
Sure. I've done it on a few houses. Add a lintel on the top. It is possible
to notch and fit a lintel in place, but you can also cut the opening wider
than what is needed, then put the steel on top and support it with brick
under it. If you can put the hole under a window there is less weight to be
supported also.
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| bill allemann 2006-04-30, 1:21 pm |
| aside from a lintle, you should also consider the width of the wall, and how
that will affect the air movement in the ac housing.
when they are window mounted, there are narrow window frames/sills for the
ac to rest on, giving some space for air flow.
you may need to add similar structure for air flow.
<saintrick42@yahoo.com> wrote in message
news:1146359440.730556.222790@i40g2000cwc.googlegroups.com...
>I have an attached garage with cement block outside wall that I would
> like to cut a hole in large enough for a 15,000 - 20,000 btu window
> a/c. Feasible??
>
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| Edwin Pawlowski 2006-04-30, 1:21 pm |
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"bill allemann" <custom4173@sbcglobalDOTnet.invalid> wrote in message
news:8555g.21991$tN3.20445@newssvr27.news.prodigy.net...
> aside from a lintle, you should also consider the width of the wall, and
> how that will affect the air movement in the ac housing.
> when they are window mounted, there are narrow window frames/sills for the
> ac to rest on, giving some space for air flow.
> you may need to add similar structure for air flow.
I had to read your post a couple of times to understand. I think you mean
the wall thickness. You don't want to block the side vents in the case of
the AC unit.
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| hallerb@aol.com 2006-04-30, 2:21 pm |
| There are split AC units kinda pricey but only ned holes for coolant
lines, more secure if thats a issue
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| ameijers 2006-04-30, 2:21 pm |
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"Edwin Pawlowski" <esp@snet.net> wrote in message
news:Y755g.467$zR3.129@newssvr33.news.prodigy.com...
>
> "bill allemann" <custom4173@sbcglobalDOTnet.invalid> wrote in message
> news:8555g.21991$tN3.20445@newssvr27.news.prodigy.net...
the[color=darkred]
>
> I had to read your post a couple of times to understand. I think you mean
> the wall thickness. You don't want to block the side vents in the case of
> the AC unit.
>
Not a problem- you just buy a 'wall-through' unit, rather than a window
unit. And for service, the guts slide out without breaking the weather seal
on the casing.
aem sends...
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| gfretwell@aol.com 2006-04-30, 2:21 pm |
| On 29 Apr 2006 18:10:40 -0700, "saintrick42@yahoo.com"
<saintrick42@yahoo.com> wrote:
>I have an attached garage with cement block outside wall that I would
>like to cut a hole in large enough for a 15,000 - 20,000 btu window
>a/c. Feasible??
I assume you are not somewhere controlled by the southern coastal
building code?
If you are there is already a tiebeam above the wall. The block is not
really load bearing unless you hit a poured cell.
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| Tom The Great 2006-04-30, 3:21 pm |
| On Sun, 30 Apr 2006 02:11:39 GMT, "Edwin Pawlowski" <esp@snet.net>
wrote:
>
><saintrick42@yahoo.com> wrote in message
>news:1146359440.730556.222790@i40g2000cwc.googlegroups.com...
>
>Sure. I've done it on a few houses. Add a lintel on the top. It is possible
>to notch and fit a lintel in place, but you can also cut the opening wider
>than what is needed, then put the steel on top and support it with brick
>under it. If you can put the hole under a window there is less weight to be
>supported also.
>
Good advice, I've seen this done(with the brick work on the bottom for
a sill), and it looked very nice. Especially if you trim it out, and
hide the lental behind molding.
later,
tom @ www.NoCostAds.com
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