The ceramic bulbs I've seen come in 60, 75, 100, 150 and 250W, so they should be sufficient. Plus it's all going out as heat since no light is produced. Also, the risk of breakage is smaller, I haven't tried smashing one but they seem a lot sturdier than glass bulbs. But @aart you're right, this was starting to drift off a bit.
I don't have much experience with winter and chickens together, as this will be my first winter with them, but so far we had -5C (23F) last night, the coop went down to about 0C, and I haven't seen any need to heat it yet. Once we get to -15C or below I might start considering it. I do have a separate heater to keep the water from freezing out in the run though, but it's submerged and doesn't really heat the environment all that much.
If I need too heat the coop, I have a 90W tube heater and a 75W ceramic lamp in there, with the option to half the power to the heat lamp. And my coop is pretty heavily insulated.
I don't have much experience with winter and chickens together, as this will be my first winter with them, but so far we had -5C (23F) last night, the coop went down to about 0C, and I haven't seen any need to heat it yet. Once we get to -15C or below I might start considering it. I do have a separate heater to keep the water from freezing out in the run though, but it's submerged and doesn't really heat the environment all that much.
If I need too heat the coop, I have a 90W tube heater and a 75W ceramic lamp in there, with the option to half the power to the heat lamp. And my coop is pretty heavily insulated.
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