A cat flap could cause a draught if left open. This is a common problem experienced by cat owners.

A draught-exclusion device can help reduce the amount of cold air that enters the house, but an animal flap that is insulated will offer greater protection against the elements. www.repairmywindowsanddoors.co.uk offers a variety of cat flaps insulated and dog doors suitable for any kind of installation including wall installations.
The Material
Insulation is among the most important aspects of the cat-door. It is the thing that keeps cold air out and warm inside. Insulation can be accomplished in a variety of ways however the material that the flap is constructed is the most important.
Doors with double or triple flaps offer better insulation and stop cold air from getting into your home. You can also buy draught restrictors that are fitted around the frame of the flap and help reduce drafts. You should be aware that these will not stop cold air from entering your home if you are trying to open the door to let your cat in.
Another option is to cover the area left behind by your cat's flap with some form of insulation, like styrofoam. This will prevent cold air from entering your home, and also decreasing the amount of noise generated when your cat uses their pet door. It is worth noting that if you decide to do this, it is crucial that you measure the hole that your cat flap has created and select a filler material that matches the material surrounding it.
The RANGER pet entry by Freedom Pet Pass is an excellent option for an excellent cat flap. This door has a thick, insulated flap that is designed to limit conductive heat loss. It also has magnetic seals that block cold air or winds from passing through the flap. Its cellular PVC frame is 3,000 times more in insulating properties than the aluminum material used in the frames of other pet doors.
Wind Resistance
When a cat's flap is closed, cold air can still get into your home even though the flap is open. Some manufacturers add draught-excluders to the flap opening, which are brushes. But, if you're seeking a cold weather cat flap insulation you will need to ensure that your door is sealed tightly when it is shut and that there aren't gaps through which cold air can get in.
A solid magnetic seal is a method to ensure that your cat's flap keep its seal against the wind, but you should also take a look at the overall structure and materials used in the construction of a pet door. The most effective cold weather pet doors are made of materials that are insulating, such as thick PVC flaps as well as a plastic frame that is able to endure temperatures that are as low as -40 degrees Celsius. This will prevent cold air from leaking in and keeps warm air out, which is an enormous energy saver.
Choose a model with double-flaps that are able to withstand both heat and cold and high winds. They'll cost more than single-flap designs, but they're a wise investment that will help you save on energy costs in the long run. This is particularly important when you reside in a region that gets extreme summers or winters.
Check reviews before buying a cat flap for cold weather to see which models have the most favorable reviews and provide the most protection from the elements. The Ideal Pet Products Designer Series Ruff Weather Pet Door is a favorite because it provides excellent insulation and a tough flap, in addition to an easy-to-install, sturdy design that is tamper-proof. Endura Flap Double Flap Wall Mount Dog & Cat Door is a different option. Many customers have praised its ability to resist cold and wind without hindering their freedom for their cats.
The Magnetic Seal
In cold weather, a well closed cat flap is crucial to prevent energy loss. The most effective cat flap insulation has the magnetic closure. The magnets will keep the door closed, even when your pet is inside the door. In addition, some models come with an external closing panel that you can use to lock your pet in or out if you need to.
A high-quality cat flap must be able resist winds and also have a solid magnetic seal. You don't want your cat flap to be blown wide open by the winds in winter. This can let cold air into your house and increase your heating bills. A good model for cold weather will come with an electronic seal that can withstand wind speeds that exceed 50 miles an hour. A majority models also come with insulation to prevent heat loss.
One of the top cold-weather cat flaps on the market is the Security Boss insulated pet door. This model is insulated in both the door as well as the frame to give the best amount of insulation. It is equipped with a Snap On closing panel which you can put into the door when weather is not ideal to keep your pet safe.
The RANGER pet gate made by Freedom Pet Pass is another great option. The door is insulated with thick celluloid PVC in order to reduce heat loss through conduction and keep your home warm. The frame is joined using the latest technology in the automotive industry to ensure it is strong and durable in cold weather.
The Baboni pet door is an great option for those who live in cold weather. It is constructed of aluminum alloy of aerospace quality as well as steel, and is welded using laser welding technology that is utilized in the automotive industry. Its design makes it impervious to extreme weather conditions and can be used in a wide variety of wall materials. The double flaps create an air pocket which provides insulation and energy efficiency and it also comes with a tunnel kit you can add to the door for extra protection in extreme weather.
The Design
If you want to keep your home warm, and keep out drafts, consider a cat door that has insulation features. It could be a dual-flap design or a frame constructed of aluminum which has less thermal conduction than PVC or plastic. Some models also come with brushes that prevent drafts and aid in reducing the loss of energy. You can find doors with these features by searching for words like "insulation," weatherproof seals," and "energy efficiency" within the product description.
A lot of modern cat doors designed specifically for use in cold climates have an array of insulation features. The Endura Flap Pet Door, for instance, comes with a dual-flap design and an insulated framework that can endure harsh weather conditions and prevent drafts. It is also eco-friendly as it is made of a nontoxic polyolefin material that is safe for your pet and the planet.
Even if you have chosen an insulated cat flap you might find that cold air can traverse the gap between the frame of your door and the wall or window. The flap can create draft when it is opened. Some manufacturers attempt to minimize this by placing a draught-excluder on the outside of the flap. However it is essential to remember that your cat must be able to open and shut the doors quickly to allow them to enter and exit as needed.
The most effective option is to install a new door that is specifically designed for cold conditions, such as the RANGER pet door from Freedom Pet Pass. The RANGER pet door has an insulated flap that is thicker and more dense that reduces conductive heating by reducing the amount of energy lost through the material. It also has the ability to be able to withstand extreme temperatures, like -40 degrees Celsius. This degree of protection is comparable to double-paned windows, however for a fraction of their price.