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Should you keep crawl space vents open or closed? 'If you close unsealed ones without a dehumidifier, you're in trouble' – experts reveal how and when to close for less ...

Knowing whether to keep your crawl space vents open or closed at particular times of year will transform the moisture levels in your home. But get it wrong, and it could lead to wider structural ...
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The Mechanic's Corner:Closing outside vents keeps vehicle cooler

VICTORY BASE COMPLEX, Iraq - Leaving the outside air vents open of a humvee can cause a lot of problems for a vehicle's air conditioner. The inside of the air conditioning unit gets clogged up and no ...