https://algowiki.win/wiki/Post....:The_Benefits_of_Cat
If you leave your cat's flap open, it could create a draft. This is a problem many cat owners face. A draught excluder can help reduce the amount of cold air that enters the home, however a cat flap that is insulated will offer more protection from the elements. Tomsgates has a range of cat flaps insulated and dog doors suitable for any type of installation including wall installations. The Material Insulation is one of the most important characteristics of the cat-door. Insulation keeps cold air out and warm inside. Insulation c