https://click4r.com/posts/g/18....395914/installing-a-
http://nutris.net/members/fork....hose9/activity/20667
If you keep your cat's flap open, it could create a draft. This is a challenge that many cat owners have to deal with. A draught-excluder can reduce the amount of cold air that is able to enter the home. However, a cat flap can provide better protection against the elements. Tomsgates offers a variety of cat flaps that are insulated and dog doors that are suitable for any type of installation, including wall-mounted installations. The Material One of th