Hey Keith,
I have an LG 45 pint model. It used to freeze up on me too until I changed it to a 2 hour on 2 hour off cycle. I have it in the basement next to the sump along with a lot of cast iron (table saw, band saw, jointer etc) and it works fine now. I'd probably go the next size up if I had to do it again do to all of the Iron.