Lectro Kennel has been warming pets for over 30 years. Ideal for use in a dog house, kennel, garage, basement or porch. The unit is constructed of a rugged ABS plastic and a steel-wrapped cord. Faux lambskin covers are also available for all sizes of heated kennel mats!All KH heated beds and pads feature dual Thermotats and are designed to warm to your petnormal body temperature when he/she lies on the pad. When your pet is not on the pad, the heat will dissipate into the air and the surface temperature will vary according to the ambient air temperature. All KH heated products are Thermotatically controlled to heat to 102 F, regardless of the size. Dual Thermotat simply means there are two internal Thermotats that will keep the surface of the bed at 10-15F above ambient air temperature when your pet is not on the bed. When your pet lies on the bed,itill warm to about 102 F.