I notice no mention is made of the size of the room. Perhaps OK for a mouse cage? So why not just buy and revamp one of those teapot/plate warmers? -- cdb, on 15/11/2013 --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .