Is there such a thing? I am looking for a very small heater suitable to go outside in a rabbit-hutch. The purpose is simply to make the pets more comfortable on those very icy cold frosty nights in winter. Ideally it needs to be at least IP45 weatherproof and of a design such that the pets will not gnaw or chew through the wire etc. I dont want to cook the pets, but just create a cosy warm corner in the hutch for them.