I too had had problems with moisture. I recently took over a room in the basement for brewing. I tiled the floor, painted, added a sink and build some counters. My first attempt at brewing down there was wet one . The one small window even with a fan in front did not stop the moisture from running down the walls or the large AC duct that is in the room, it pretty much was raining in there. So I tried the way out the complicated method. I built a condensing heat exchanger. Made from 4" PVC pipe (see the top pic where I flattened some pipe and glued together for thick pieces) added the 1/2" tubes and sealed the ends with mold making rubber. An old fan found in the garage pulls the steam and some cooling air from the kettle through exchanger. (the end TEE is open on top) I tried it out yesterday with My 220V anvil 10.5 kettle. I boiled two gallons for one hour. I recovered about 3 quarts of water. I was expecting a full gallon but when I measured the water left in the kettle I found exactly one gallon left. I used sink water to cool, I am on a well and used quite a bit of cooling water during that hour. I need to find a smart engineering type to tell me how much ice it would take to condense one gallon of water and stay cool then I could use a circulating pump and a mash tun with ice and save a bunch of water.