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Treat your crawl space like a mini-basement; seal vents and insulate exterior walls for savings - mlive.com
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Amazon.com: Pre-Cut Foam Block | 8.25” X 16.25” Width X 1” Thick | Crawlspace Vent Block, Standard Vent Size | Arts & Crafts Foam | Polyethylene Foam Sheet | Insert Packing Foam
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Crawl Space Recessed Foundation Vent Cover - Fits 8" H x 16" W Openings - Durable and Efficient Sealing Solution (Black) - Amazon.com
![Closing Crawl Space Vents in the Winter - Good or Bad Idea? | News and Events for Basement Systems, Inc. Closing Crawl Space Vents in the Winter - Good or Bad Idea? | News and Events for Basement Systems, Inc.](https://cdn.treehouseinternetgroup.com/cms_images/215/crawlspace-vent-cover-winter.jpg)