I love this mat, it works perfectly. It melts the ice and snow in just a few minutes after plugging it in. The timer that comes with it is for indoor use only???? It says it right on the package. On the picture in the ad it shows the timer plugged inside with the black cord for the mat plugged into it. How are we suppose to use this timer? The black cord for the mat is too thick to close my door on it. So, now I have to go outside and plug it in and out. If I could send back the timer and get a timer that is used for outside that would be helpful. Outdoor timers with remote are upwards of $25.00. an added expense to an already expensive product.