https://scientific-programs.sc....ience/wiki/Using_a_C
If you leave your cat's flap open, it could create draft. This is a frequent issue that cat owners face. A draught-exclusion device can help to reduce cold air coming into the home, however the cat flap that is insulated will offer more protection from the elements. Tomsgates offers a selection of insulated cat flaps 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