Planar electrical heating apparatus with modular assembly

An electric insert for a planar electrical heating apparatus with an outer shell and an internal cavity, the internal cavity including an upper inner cavity surface and a lower inner cavity surface, the electric insert receivable and positionable within the internal cavity, the outer shell including an upper shell layer and a lower shell layer defining the internal cavity, wherein the upper shell layer and the lower shell layer are attachable using a first bond along the periphery and attachable using a second bond between the upper inner cavity surface and the lower inner cavity surface, the first bond sealing the outer shell to the lower shell and the second bond being unsealed between the upper inner cavity surface and the lower inner cavity surface, the electric insert comprising:

• an electric circuit with an upper and lower insulating layer and a first and a second non-heating conductors thereon or therewithin;
• a first connector end portion thereon or therewithin the upper or lower insulating layer, the first connector end portion connectable to the first and the second non-heating conductors of the electric circuit and a source of power;
• a second connector end portion thereon or therewithin the upper or lower insulating layer, the first connector end portion connectable to the first and the second non-heating conductors of the electric circuit and the first and the second non-heating conductors of the heating element;
• a sealing end portion enclosing the first and the second connector end portions secured attachably and sacrificially detachable around the first and the second connector end portion for electrical isolation and protection from water ingress;
• and
• wherein the second connector end portion is connected to the first and second non-heating conductors of the heating element and the first connector end portion connected to an electrical power supply.