Temporary vent - portable Air Conditioner (AC) through open window - any success stories / tips?

Posted 14th Jun 2021
Hi there,

If I update my ‘very’ temporary ‘groundsheet’ window vent

(Currently using clips / duck tape) to a heavy-duty ‘Velcro’ and board type system,

will I still get blow-back? (Groundsheet blows back like balloon)


Not sure my new creation will be as elaborate as the above ^ from internet search, due to sourcing. (Have Tape / few boxes HD Velcro)

(I Imagine the Velcro letting rip like ‘The Incredible Hulk’ )

Casement 124cm x 50cm uPVC window opening outwards. (Looked at zip ones but examples are inward opening.
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