[DruannB]

At home we have an electronic dog door that closes tightly with a sliding plexiglass door. The door closes quickly and keeps out everything. That being said, since we're here right now with our two dogs and are experiencing the heat, we are not letting the dogs out any longer than for quick bathroom breaks. We take them to a dog park early in the morning, and they get a quick walk after the sun is less intense. I would worry about using a doggy door unsupervised if you have a dog that doesn't have the sense to come in out of the heat. We have one that stays out in Ohio when it's freezing cold. We have to bring him in and turn off the door during that type of weather. He loves it, but I know it's not good for him. He's an American Eskimo, btw.