I would not attempt to do a moist hot compost in my coop, even with the right ingredients...even in summer, let alone winter.So I should add a little water to it before I stir it up? The chickens were stirring it up for awhile but lately I've had to give it a stir with my pitch fork. It's not putting out a lot of heat but it is composting.
Just shavings and poop takes a LOT of water.
I use poop boards and shavings on floor, totally change out shavings twice a year.
Put clean out one year in a compost bin with a thermometer.
I had sprinkled it with water as I layered it in...no temp rise.
I relayered and added 10 gallons of water to 13 cubic feet of shavings/poop,
the next day it was 160°F....but I couldn't maintain enough heat to break down shavings.