Coated glass ware and method of making same

A heat-treatable coated glass having, when 2.5-3.5 mm thick, properties comprising 76-78% transmittance, less than 12 ohm/sq.sheet resistance, less than 0.12 normal emissivity and 0.16 hemispherical emissivity after heat treatment has a sputter-coating layer system of: (i) 350-450 Å Si3N4 on the glass surface, (ii) 20 Å min. nickel or nichrome, (iii) 50-120Å silver, (iv) 7 Å min. nickel or nichrome, and (v) 450-550 Å Si3N4. Also claimed is the heat-treated prod. obtd. from the above glass.