https://yogicentral.science/wi....ki/Using_uPVC_Cat_Fl
If you leave your cat's flap open, it could create draft. This is a common issue encountered by cat owners. A draught-exclusion device can help to reduce cold air coming into the house, but an animal flap that is insulated will offer more protection from the elements. Tomsgates offers a variety of cat flaps that are insulated and dog doors suitable for any type of installation, including wall installations. The Material Insulation is among the most important characteristics of the cat-door. It is the thing that keeps cold