Hi.
Could you show us pictures of your run...?
And of your chickens, while you are at that?
Chicken are cold hardy, but to help them, you could want to :
- put a lot of straw in their coop (a piece of advice : do not use hay, because hay could cause some serious health risks to your birds),
- block the wind - at least the dominant ones - AND the rain (and snow) in their run,
- install at least 1 wooden perch (sheltered from the wind and the rain).
Your chicken will really appreciate to be able to perch in order to warm up their feet!!
Change their water regularly, and let your chickens have continuous access to their food : they can take the cold, but they need to eat a lot to stay warm!
You don't need electricity. Don't worry!
(Your are already doing very good by caring so much and seeking to learn!)
Look... I really don't know how cold it gets in America, but I live in Auvergne, and trust me when I say my department is really, really COLD in winter...
I had -5 to -8 °C (23 °F to 17,6 °F) these last mornings, and so, for several days, the ground has been ICE most of the time... but my chickens are FINE!
(I only have Omlet coops, so my birds are warmer during the nights compared with others... but for the time being, I open their runs between 5 and 6 in the mornings, so apart for the late risers, they get out in the DARK, and so, in the colder temperatures of the days...!)
I could not use electricity to warm up my chickens if I wanted to : electricity has become so expensive in France I could not even use it to warm up my home...
(You also have this problem in some American states... right?)
Truthfully, I don't think I even know somebody who use electric heaters in their coops! (I didn't even know that was a thing until I saw some foreign videos on Youtube...!)
...Our chickens nevertheless remain in good health through the winters!!
(In addition : I know electric heaters could be dangerous, because they could catch fire...?)
Actually, I would tell you humidity is more dangerous to chickens than the cold...!
But you could put plastic gratings to cover the ground in your run, so your chickens don't walk in puddle or mud... That's what I do, so when it rains, my chickens can stay completely dry. And so, they don't get scaly legs!
(If you want to, you could always give Vitamins, Proteins, or just herbs and/or spices, to your chickens... to help them to stay strong in cold weathers, and so, to reduce risks of diseases.
And if you are not sure what you CAN give them... why not just put thyme in their feeder? Thyme is safe to use, and good for your chickens!)
Good luck.
...
...21hens-incharge... would you pleaaaase post pictures of your coop...?
(I don't know yet how to link your pseudo to warn you I talk to youuuuu...!!)
I really would want to see pictures of your coop, but cleared of all this snow!
What IS it? A converted big crate dog...? I have only ever seen that "igloo" shape on dog kennels and Eglu Classic (Omlet)...
5'10" tall for the door... so, almost 180 cm... Did I convert that correctly? That would make a really big coop... (AMAZING!!)
I have seen some pretty big coops in America and in Canada, thanks to Youtube... That's impressive.
But are you not bothered, concerning your laws...? Do you not pay heavy taxes for your coops?
And do you not have a limited number of birds you are allowed to own? (Do big coop automatically means big flock, in America...?)
Can you please post pictures?