I'm putting a window unit upstairs to supplement my central air, and we got a good deal on a used 10k BTU unit.
It's pretty heavy, though, so I'm pretty sure I should install one of these:
However, I have relatively new vinyl windows, and the window frame is capped with aluminum on the outside, so I'd really like to avoid putting screws or holes anywhere. The only place I'd be ok is on the inside sill where there is still wood.
Any suggestions on how to do this? Do these brackets typically install to the inside sill? The photos show it on the outside sill.
Just wondering if anyone knows a time-tested way of putting this in safely to the second story window.
Thanks in advance for the advice.