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238 Posts
this might be obvious to some, not so obvious to others BUT, an extraction fan such as the Maxxair fan that we've been discussing needs air to extract...w/o an intake its pretty useless....so i ordered a pair of these so that i can leave the windows cracked a couple inches so that the fan will have a place to pull air FROM! w/o getting rained on inside the van...i have it set up so that anything over 90 degrees will open and start the fan...i did a test with the windows both open about 2", you'd be surprised how much air that fan moves through there...and its all at the top so only the hottest air will be removed