In float glass manufacturing, the tin bath heating system's temperature performance & energy efficiency are essential, not least because of the enormously high energy densities the system produces. Because of these stringent heating requirements, float glass manufacturers typically encounter 3 main problems with the tin bath process. First, as the tin bath ages, electric heating elements & control systems fail. Secondly, additional heat is often needed after the coating process & thirdly, changes in job specifications require a better technique for heating edges. The Float Fire Auxiliary Heating System from Eclipse claims to eliminate these common problems & improve energy efficiency/control or the tin bath heating process. Eclipse claim that by converting from electric heating to gas with this new system can achieve up to 70% savings in energy costs.