We had this same bunch of threads last year. We were VERY cold last winter (sub zero) and all my chickens did well with no heat at all, even in our amateurish coops. We minimized drafts, used 2x4 for roosts to prevent frostbite on the feet and used heated dog bowls for water. I had banties in one coop, leghorns with huge combs in another, and a mixed bag in a third. Only one who had permanent frostbite damage was my roo - just the tips. Make sure you have adequate ventilation, other than that my birds hardly even noticed it was cold. - (MINUS) 26F and they were pecking around in the coop as usual. And these are not 'cold hardy' birds - skinny white leghorns and d'uccles.
I do use deep litter, which may have helped as well. All my coops are plywood, no insulation.
I do use deep litter, which may have helped as well. All my coops are plywood, no insulation.
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