I have a family of four cats that I care for outside. I wanted to make sure they would be warm and safe during the cold winter months. This elevated heated cat house is extra large and provides a warm, safe shelter for multiple cats in winter. The house is waterproof and weatherproof, and has a built-in heating element to keep the cats warm. I love that there are two openings in the house. If an animal that is not wanted starts a fight with them, they can escape through the other doorway. Each door opening has a thick piece of plastic along with another cover that has velcro on it. You can choose to keep the opening open or close it during bad weather. I put the house out and left it open so the cats could get used to the idea of going in it. The house comes with a heating pad that plugs right into the outlet of our house. There is a hole in the house that the cord can go through easily. The house is very easy to put together and can hold multiple cats. It is strong and sturdy, and I know my outdoor cats will be as warm and safe as I can get them without taking them inside. Since I already have three cats, this is the best solution for me. I am thrilled with this great quality cat house. It was worth every penny.