https://blogfreely.net/knightl....oan11/through-wall-c
A upvc panel that has an animal flap can help reduce the amount of draughts that your home experiences. By keeping your pets warm and cold air out you can reduce heating costs. Although it is possible to install a cat flap into both upvc and double glazing sealed units, it is more difficult than with timber doors. This is due to the fact that upvc comes in a variety of thicknesses. Benefits A cat flap that is installed on your door allows you to keep your pet inside or out of the house, while still let other people in. It also h