https://king-wifi.win/wiki/Cat...._Flap_Installation_C
If you keep your cat's flap open, it can create draft. This is a problem many cat owners face. A draught excluder can help cut down the amount of cold air that enters the home. However, a cat flap can provide more protection from the elements. Tomsgates offers a variety of insulated cat flaps and dog doors suitable for any kind of installation, including wall installations. The Material Insulation is among the most important characteristics of a cat-door. Insulation keeps cold air out and warm in. There are a variety of ways