I have that coop. The window in the back above the nesting egg door is not your ventilation. It is good for summer days and hot summer nights. Same for thd one on your clean out door. Your ventilation is above the pop door wall. Air from the roosting area goes up and over that wall through the opening and into the run area. Some people with this coop have mistakenly thought it was a construction error and sealed it up. Don't do that! Think of it this way. A draft is any flow of air that hits any part of the chickens or the area below them as they roost. Ventilation is an opening well above their heads as they roost so warm rising air can carry away condensation/ moisture.. The picture shows it closed but it’s been open. Also open in the back. Enough ventilation
From my own experience, do this check for drafts. Close the pop door, egg door, and egg window. Stick your head inside from the clean out door and look for gaps between wallboards and around window and door frames. You will see light coming through. Do the same thing closing all openings except the one you are looking through, taking turns looking through the egg door and pop door. Seal up all gaps. These will be deadly drafts in winter.
This coop says it holds 8 chickens. It's a lie. First, don't include nesting area in measuring. The roost area is only big enough for 2-3 birds. If you have more, come winter they will be crowded all day if they can't get outside. This can cause pecking and bullying. You need 4sqft/bird indoors, and 10sqft/bird outdoors if you aren't free ranging.
This coop MIGHT last you 2 years. It's very cheaply made of very inferior wood. I've started turning mine into a coop that can comfortably hold 7 birds. If you'd like to see how I'm doing that check out my thread "Altering my terrible TS coop". If I want more than that I need to build it larger, or build a second coop, or build a new bigger coop to house them all.
Good luck and WELCOME TO BYC!
