Basically, the principle of automatic snow removal is to place heat beneath the surface of an area to be cleared by circulating heated glycol solution of light oil though a network of pipe embedded in or below a concrete slab. The medium is heated in a boiler and circulated through the piping system by means of a pump. The advantages of using ethylene glycol are lower viscosity, which results in lower pumping costs, and better heat transfer. Light oil has lower initial costs and lessens the danger of sludge forming in the heat exchanger tubes. The first step in the installation of a system is to lay a fill of either crushed stone or similar materials. This will provided drainage and keep the coils from ground moisture. After the fill is laid, concrete is placed over the coils and allowed to harden. The snow melting coils are placed on this slab after which another layer of concrete is poured to completely bury the coils. Snow melting systems have obvious advantages. One is snow and ice are removed without manual labor. Also paved surfaces are quickly dried after rain and snow thus forestalling the tracking in of dirt into buildings.