I asked a question the other day about ventilation on this forum and was directed to the Woods type coops with open ventilation all year round, and lots of it. I got the book and read the ideas in it. Then I read more from others about how to heat a coop in the winter. No I'm confused. If I'm encouraged to use the open coop method of ventilation, with half a wall nothing but hardware cloth and lots of other ventilation up higher, why any talk at all about heating the coop or insulating it? The two ideas are inconsistent. What do the experienced hands on deck have to say?