EGO snowblowers are classified as 2-stage or devil’s valve powered. The 2-stage snow blowers use a motor at the rear of the machine that drives a larger impeller than the one in front, which creates more force when spinning and causes the snow to be blown through a chute quickly. Traditional push style snowthrowers use a smaller motor in the front and only create enough force to throw the snow forward; this is why they can’t handle heavy or wet loads.