I bought a flat panel ceramic heater from shop the coop for those nights when it's in the teens or below. (don't want to debate the heat vs no heat please) My question is about installation. My husband hung it right behind the roost, which is about 6-8 inches from the heater. Anyone familiar with these heaters? Is this going to be too hot for so close to them? It says there's no burn risk, but will it be too hot for them to snuggle right up to?