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A cat flap can cause a draught if it's left open. This is a problem that many cat owners face. A draught excluder can to reduce cold air coming into the house, but the cat flap with insulation will provide greater protection against the elements. Tomsgates has a range of cat flaps insulated and dog doors that can be used for any kind of installation including wall installations. The Material One of the most important elements of the cat door is its insulation. This is what keeps cold air out and warm ai