The HeatTrak Residential Snow-Melting Stair Mat will relieve you of the burden of clearing snow off the stairs and make walking safe and slip-proof 24/7 throughout the winter. Each mat produces enough heat to melt 2” of snow per hour. The best part is that you can buy a whole of bunch of them and connect them to each other using built-in watertight connecting cables and a single power unit. Your army of mats will now cover the stairs, melting snow as soon as it falls and keeping the entire path from outside to your door entirely free of snow. Of course, if you have pet dogs or cats, they might just start ignoring your lap and start heading out to warm their tushies on the warm mat.