Keep your outdoor dog warm in the winter with a Kane Heating Mat. Manufactured in Iowa by one of the leaders in pet and livestock equipment for over 30 years. Rheostat controlled temperature for kennels, dog houses, garages and whelping areas. Made from easy-to-clean polyethylene, they provide a safe and consistently heated surface. Kane Heating Mats are comfortable for dogs and should not be covered by bedding or other materials so that the device does not overheat.