https://squareblogs.net/beamdo....llar08/cat-flap-inst
This insulated cat flap has a double-flap system and offers a good amount of protection in various climates. It can be put in wood, uPVC and glass doors. A tightly sealing door is crucial, particularly in colder weather. It keeps warm air from being sucked out and cold air from getting in, saving money on energy costs. Wind Resistance By blocking cold air from entering your home and keeping warm air inside, a cat flap cover keeps it warm. The best options are those that have magnet seals and are