FRONT AND SIDES OF PLATEN ARE INSULATED. INSULATION IS WRAPPED IN SHEET METAL. METAL EDGE EXTENDS APPROX .75” TO PROTECT A .75” THICK PIECE OF SURFACE INSULATION (SOME ARE MISSING THE 24” X 24” X .75” SURFACE INSULATION). EIGHT STRIP HEATERS THAT ARE 240 VOLT AND 1200 WATT. OVERALL DIMENSIONS INCLUDING EDGE INSULATION, METAL WRAP AND TERMINAL BOX: 25.25” X 27.25” X 3”. SOME DRILLED/TAPPED HOLES AND SEVERAL THRU-HOLES. APPROX 400 LBS. (QTY 10) (ITEM #1598)