Hi all. This will be our first winter with chickens. I have been reading the how to heat my coop threads and saw a suggestion of using an enclosed (porcelain?) oil heater. The kind that looks like an accordion. I just happen to have a couple of those but was wondering if it can be used safely on the floor with hay? Or should I build a platform for it? Is it a fire hazard? I want to be safe, and to be honest I don't really know what I'm doing......lol