The Liftmaster model 8587W is specifically designed to operate larger residential doors. It is a ¾ HP chain driven opener. It comes in 10’,12, and 14’ tall configurations. It is part of the Liftmaster Elite Series of openers and has built-in wi-fi which gives you the ability to operate and monitor your door from anywhere in the world that you have phone service. It holds up to 40 remote controls and 4 outside keypads. It carries a lifetime motor warranty, 5-year parts.