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; Accessories for fireplaces, namely, ventilation hoods for fireplaces for use in ventilation and deflecting heat from the top of a fireplace; Electrically-heated garden hoses; Electrically heated blankets, not for medical purposes; Heat stress machines having temperature controlled ceramic heating elements for heating tubes, pipes and welds; Heating systems composed primarily of tubes, pipes and pre-assembled manifolds through which cold or low temperature water circulates; Heating units for industrial purposes; Hot water tanks; Vehicle climate-control system for heating, ventilation and air-conditioning; Vehicle exhaust extraction systems for buildings comprised primarily of ventilating exhaust fans