Basement HVAC opening to crawl space solution?

Old 12-13-19, 09:51 PM
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Basement HVAC opening to crawl space solution?

Hello all, I have an opening in my basement wall to feed HVAC into a bonus room extension at the back of the house. The bonus room has a dirt crawl space and I think the opening is allowing bugs into the basement.

Any idea for a good looking solution to seal this opening around the HVAC?

thanks for any ideas anyone has!

pics posted at link below

Old 12-14-19, 02:16 AM
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If it does not need to be to neat I would get some screening and put around pipes, duct tape it to the pipes and then get some expanding foam spray. Fill the area up. It will stop the bugs. Will be a lot harder if it is needed to be neat, and clean looking.

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