Accessories for fireplaces, namely, air circulation kits consisting primarily of metal ducts and metal adaptors used to increase the amount of heat recovered from the fireplace using a blower or natural convection; Air-conditioning, air cooling and ventilation apparatus and instruments; Commercial refrigerators and freezers and replacement parts and fittings therefor; Electrical induction heating apparatus for heating metal workpieces; Glass plates sold as parts of ovens; Heating elements; In...