Quote: I'm brand new to this, so remember that.
I purchased the Open Air Poultry Housing by Woods from
Amazon (after visiting a blog by Robert Plamondon who has reissued several classic poultry texts). Reading the first two chapters of that book made so much sense. The housing is classic and the book is full of plans.
Several people on this blog have that style of coop.
You have a huge space for your chickens...they'll be SOOOO happy!
My experience with small housing a large flock is that you want to make your coop/run big enough for the amount of chickens you have because there will be days they are locked in or days they'll prefer to be IN and therefore your coop/indoor run (the run you keep dry for those horrible days) should have the adequate amount of space for your 10 birds to hang out 24 hours straight without getting in each others' faces. With the high winds recently seen in Colorado, the birds hate the wind and want to be out of it. Snowing, raining, snow on the ground, all those have driven the birds inside in my experience. And if they have enough space to hang out comfortably, the pecking is so reduced. Pecking can cause blood, blood causes more pecking, it's a vicious circle.
So as big an indoor (meaning roofed) run area as you can manage would be appreciated by the birds.
I tarp my outdoor run's open sides every night because having a big dry area for the hens is such a game changer!
On nice days, they're out exploring the property, but on icky days, they're hunkered underneath the coops (I have two buildings) or at least in the run. I provide straw bales for different levels for them, and I think we'll put some corner roosts up for the summer as I'm sure they'll be using the outdoor run to sleep when it hits the high temps we can get even here at 7000 feet.
The run is bulletproof, too. Well, not from a bear, but we're adding electricity before they come out of hibernation. That'll keep the bear at bay!
Good Luck! You will learn scads from everyone on this blog. I don't know what I would've done without the people on this blog.
And the heating question is always up for debate. Just remember, if your chickens are dry, out of a draft, on adequate wide roosts, in a properly ventilated, clean dry coop, they fluff up those down coats they carry around with them and do just fine! We had negative 18, negative 15, negative 10 more days than I care to remember in December and January...my chickens did just fine in their draft-free coop. We did get frostbite on a longer wattle from the chicken drinking from a bucket, but we've changed our water delivery system (chickenwaterer.com with heat tape around the plastic part) so that won't happen again. That said, electrifying your coop with some outlets and lamp sockets allows you to safely provide additional warmth and illumination. A window is nice in the coop just cuz it's cheerful! And I play talk radio on the days I'm gone to deter predators. Nice to be able to plug that stuff in, plus a heated food/water bowl.
There's a wonderful treatise in the Open Air Poultry Housing book called "Consider the titmouse." Which basically says, if a titmouse can stay warm no matter the weather, our chickens will do just fine provided the right shelter.