Hi, I have a weird problem.
Just got a window A/C unit to complement the underpowered central air in our townhouse.
We have what looks like a single-hung storm window, with the tilt-wash feature, but with NO outside/outer sill. The whole window unit (Acorn) is inset in the wood frame; it's not the traditional window that's integrated into the frame with an inner and outer sill.
There's an inner sill, and then the metal frame of the window is about 1" tall, and then just beyond the inner lip is a sheer drop.
Obviously, there's nowhere to rest the unit on the outside.
I can't find anything online that mentions how to deal with this. There are the A/C Safe mounting brackets, which look like it would bridge the rising lip, but that would leave a huge gaping hole beneath the unit as well.
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