Is it possible to vent a window air conditioner into a shed?
Short answer, probably not. An Air Conditioner cools by pumping warm air out of your house. That warm air needs a place to go, usually it just vents into the air outside your home. If vented into a shed, the window unit will quickly heat up the the air inside the shed and then the A/C will lose efficiency. A second problem you would need to address is the water condensing from the window unit. Best to find a way to vent the A/C properly.