Electric Convection Heaters are made with a 22 gauge steel front. 20 gauge junction boxes are located on each end of these convection electric heaters. Junction boxes include quick connect cable clamps and 6 ground lead wires. Electric baseboard heaters have a stainless steel heating element and aluminum fins. Convection heaters include a full-length wireway along the back. Over-temperature thermal limit extends through the entire length of the heated area. These convection baseboard heaters allow wall mounting using keyhole knockouts located every 4 on the back. Baseboard heaters measure 2-1/2D x 6H. Available in White or Ivory painted finish. Requires Installation. UL listed. 1 Year Limited Warranty.