I need to install a window air conditioner in my master bedroom. However, the only suitable window there is a horizontal sliding window. To complicate things more, I need to place it on top, since my king size bed obstructs the lower part, as you can see here:
This is how that window looks from the outside:
I'm thinking in building a support structure like this one, using 2 by 4 planks:
And after some thinking I think I can attach the transversal planks to the vertical ones, instead of attaching them to the outer wall, like this:
And now, I'm thinking I can get rid of the exterior support structure altogether (in red in my last two pictures). The AC unit weights 48 lbs.
What do you think? Is there a simpler/better way to do it? Also, I'm renting, so I'd lean towards a solution that does the minimum damage to the window structure.