The QX glass tempering furnace by Xinglass America has high heat-resistance insulation materials that achieve 25 percent less energy consumption, say company officials. The heating system uses intelligent heating control algorithms that allow for temperature accuracy within one degree. Xinglass America’s air convection technology uses innovative nozzle design and guarantees a high-quality glass surface, according to the company. The optimized quenching process reduces most product defects for soft and hard low-emissivity coatings glass.