I’ve always been curious that if chimneys are meant to let smoke or air out of the house then how do they prevent rain, snow, sleet, etc. From getting in?
In: Engineering
Chimneys usually have their own little umbrellas to keep the rain or elements from falling down them. There’s also a piece you can close from inside the house to shut the chimney, like a window, to keep the breeze out when there’s no fire.
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