We've considered the "Third Hen," but I am a little nervous about concentrating heat within a closed pot, particularly that close to the bedding.
I like the idea--I'm probably just being too cautious...
Each hen produces 10 to 15 watts of heat. Some refrigerator bulbs are 15W which would perfectly mimic an extra hen if wired to a clay pot. Connecting it to the roost would be challenging though.
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