Ventilation Range Hoods, Wall Mount Range Hoods, Island Mount Range Hoods, and Cabinet Insert Range Hoods, Under Cabinet Range Hoods. Pro Style Range Hoods, Glide-Out Range Hoods, Downdraft Range Hoods. In any kitchen, the selection of ventilation equipment is just as important as the selection of the cooking equipment. There are three major components to an effective kitchen ventilation system (hood canopy, blower system, and ducting). These components must work together in unison to provide proper ventilation. Any deficiency in one of these three areas may result in the range hood not performing to its full potential. The hood fan should be ab;e to handle the heat output of the cooking equipment, measured in watts for electric cooking equipment, and BTUs for gas cooking equipment.