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A cat flap could cause an air draught when left open. This is a frequent issue encountered by cat owners. A draught-excluder can help reduce the amount of cold air entering the home. However an animal flap can provide more protection from the elements. Tomsgates has a range of insulated cat flaps and dog doors suitable for any installation, including wall-mounted installations. The Material One of the most important features of the cat door is its insulation. This is what keeps cold air out and warm air in. There are many ways in which insulation can be made, but the