The only real place I can put it in is in my bathroom unfortunately. I don't have a garage (converted it to a guest house) or a basement (I live in California), and the laundry room I have gets hit with sunlight throughout the day and gets pretty hot with the machines running (almost everyday).
My bathroom seems like the best bet because it's located in the same room as my tank and I'm able to keep an eye on the unit while it runs. I'm getting a concerned about it possibly leaking though.
I have my RODI in my bathroom and it is ideal. I use 5gal buckets for my water and put them in the bath while I am filling them up. It is a perfect drip-tray for when I forget to turn it off (which I have done a couple of times!).