The ventilation is probably one of the most important aspects that new chicken owners and prefab coop designers forget (or disregard).
I can't tell from the pic, but the drop down above the nest boxes appears to be a hinged window... if so, you could probably close that only when it's really cold and windy, but leave the other one open year round for ventilation. You can always add windows or additional ventilation down the road if warranted.
The chickens will be fine down to sub zero weather as long as you keep the moisture (dampness) inside to a minimum, keep direct wind/breezes off of them on the roost, and allow them to hunker down and cover their toes with their feathers. They really are very hardy animals. You'll freak when one decides to molt in the middle of winter!
Nothing like worrying about a near nekid chicken when the temps are sub freezing
Cause they shed all their plumage to grow new.
Most auto pop doors now have/offer a solar panel charger for a battery to operate them. Most use so little juice to operate that a new battery should last a year or more. With a solar charger it should be good for many years. http://chickendoors.com/ <---My personal favorite. In addition, with the 12 volt system. you can get some really cheap 12 volt lighting and such for inside the coop... like what's in campers and boats... or to power a remote camera for chicken TV at all hours.

The chickens will be fine down to sub zero weather as long as you keep the moisture (dampness) inside to a minimum, keep direct wind/breezes off of them on the roost, and allow them to hunker down and cover their toes with their feathers. They really are very hardy animals. You'll freak when one decides to molt in the middle of winter!


Most auto pop doors now have/offer a solar panel charger for a battery to operate them. Most use so little juice to operate that a new battery should last a year or more. With a solar charger it should be good for many years. http://chickendoors.com/ <---My personal favorite. In addition, with the 12 volt system. you can get some really cheap 12 volt lighting and such for inside the coop... like what's in campers and boats... or to power a remote camera for chicken TV at all hours.
