I use a swamp cooler to keep my fermentation cool: a bucket full of water where my carboy or bucket goes in, and a t-shirt draped over the carboy/bucket with a fan pointed at it. One room has two ...
Summers where I live typically have 80F nights and it can easily pick up to 95 degrees during the day. I have a plastic trash can (which I bought for this purpose) that I have filled up with water. ...