We use that in our turkey coop. Sure does smell good in there...like a barn, not at all like it smelled in the summer. The turkey coop is a chicken tractor actually. But now that its snowing, we don't move it. We double tarped it, put hay bales all along the edges and leave the door with just...
I would never put a candle in a chicken coop. They are way too curious. Straw, pine, wood coop, nesting boxes...up in flames in minutes.
There are much safer ways with covered tin cans and light bulbs -- but this just to keep water from freezing. Chickens don't need heat in their coop as...