cutting a hole for aircon

[nunu]

I'm wondering what's the best approach on installing a small .75hp window type aircon. I have attached a photo on where I think the aircon should be placed. The Red box(location B) is ideal I think but my problem is the wall is old concrete so it maybe hard for me to break the concrete. The green box(location A) would be easier but would look uglier? And I would have to cut through the metal framing for the aircon's body to go through. Can you guys give me a bit of advice on how to go through this?

[rosy]

Just my personal opinion bro, I'd rather cut a hole on the wall than destroy the
metal frames of my window, plus be replacing the broken window glass, then
still have to hire a welder to fix that window frame.

By cutting a hole in that wall will be easier, simply use an angle grinder fitted with
a concrete cutting disk. an almost exact size of the aircon can be achieved. Just
finish the rough edges of the concrete with cement then paint it with the same color
of the interior wall.

Just my opinion if I am to install an aircon in the same situation as yours.



Good Luck on the project !

[swordsman]

I saw some guys making a hole thru a concrete wall for an exhaust fan using, as sir rosy said, an angle grinder. They're also using a drill..(or was it a jackhammer) to chip off the concrete little by little.
By the way, why not put it on top of the window if there's still space, so the air can circulate better...and the cold air is not directly blown to people hanging out by the wooden sofa?

[nunu]

Angle grinder sounds awesome! I didn't know you can cut through concrete wall with angle grinder and lucky enough I can borrow one!

Swordsman, Sadly those are the only spots I can place the AC. because the wall beside it is a wall shared by the next door neighbor.

thank you!!!!!

[rosy]

@ nunu,

Bro I forgot to mention after using an angle grinder fitted with a concrete cutting disk,
you will also need a rotary hammer drill, this will help in removing concrete plasters
and the CHB chips/chunks faster compared to doing it manually.

.

[nunu]

got it, thanks rosy!!

[richardjohn]

I use an electric jack hammer I seldom cut the concrete if the tile is to be set over the cut area. It would create less dust. A cut only needs to be an inch or so deep to give you a neat edge when jack hammering.

Thank You

[nunu]

thanks guys! already bore the hole using an angle grinder but I had to ask for help because I was too afraid of the angle grinder.