https://valetinowiki.racing/wi....ki/How_to_Install_a_
This double-flap cat flap that is insulated is a great protection for all climates. It can be fitted in wood, uPVC, glass, and metal doors. A tightly sealed door is vital, especially in cold weather. It keeps warm air from being sucked away and cold air from getting in, saving money on energy costs. Wind Resistance Covering your cat's flap for winter will help keep your home warmer by stopping cold air from entering and allowing warm air within. Most of the best options are insulated and come with an electronic