Heating apparatus

An improved electrical heating apparatus, said apparatus comprising:

• a housing,
• said housing including an upper housing portion mating with a lower housing portion,
• an air inlet,
• said air inlet positioned at one of said housing portions,
• an air outlet,
• said air outlet positioned at the remaining of said housing portions;
• fan means disposed within said housing for moving air between said air inlet and said air outlet;
• mounting frame assembly means disposed within said lower housing portion intermediate said fan means and said air outlet,
• said frame assembly means including a multiplicity of slots positioned horizontally and vertically around the periphery thereof;
• said frame assembly further including a heating cavity for heating air moving between said air inlet and said air outlet;
• heater element support means;
• said support means positioned at selected of said horizontal slots and at selected of said vertical slots;
• heater element means strung across said heating cavity,
• said heater element means being strung through and between said horizontal and vertical support means in a non-planar configuration to maximize the transfer of heat to air moving through said cavity,
• each said support means having retaining means formed thereon engageable with one said slot when said heater element means is strung therethrough,
• said support means positioned at selected of said horizontal slots, said support means positioned at selected of said vertical slots that lie in respective perpendicular planes rotated 90.degree. with respect to each other,
• said support means including eyelet means which maintains said heating element means in a fixed position such that said heating element do not come into direct contact with said mounting frame assembly,
• said eyelets being disposed to cause said heating element means to be in a folded convoluted shape when strung through said eyelets and said heating element means having its ends connected by terminals that are in proximate adjacent relationship whereby the heating element means can be disposed in a very small heating cavity and thereby produce efficient heating of the maximum amount of air being moved through the cavity of the apparatus.