Just wanted to say, love your screen anme, avatar pic, and quote.
We're facing the same questions (hopefully! First city council vote TOMORROW!) and planninf insulated coop, heated water, light for longer "daylight", access to outdoors every day regardless of Wx. We're planning to raise the henhouse 2 feet and enclose underneath with wire fencing, to be covered by "storm windows" on 3 sides (esp S & W) in winter to create a sheltered, sun-warmed outdoor zone in winter.
It's a plan based soley on theory...... not any real-lif experience yet!