I was wondering about insulating. I didnt know wether to or not but since the room will be cooler than the house I guess it would be a good energy saver for sure. I was worried because if it got wet(mold) for some reason but read that with KILZ and a water sealing paint that room ought to be good to go. A dehumidifier will be in there for sure as my last house had alot of condensation during the winter because of my 180G.

Does anyone run a mini split by any chance? I would love some advice on this.