Was op taking about heating the coop? I thought the post was about insulating a well ventilated coop and the benefits that can have? Or I missed something? I think, when you live where you get extreme cold spells ,insulating a coop with adequate ventilation can help if only because it helps keep the drafts down. Not sure it's worth it for the added cost, but of I have extra insulation on hand from building projects, I do like to use it. Its equivalent to piling hay up, but on the walls.
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