A heating unit for use in heating pallets full of materials includes wall modules and a lid module. The modules include cover layers. Each module may include a heating component disposed between the cover layers and which is configured to convert electrical energy to heat energy and to distribute th
A heating unit for use in heating pallets full of materials includes wall modules and a lid module. The modules include cover layers. Each module may include a heating component disposed between the cover layers and which is configured to convert electrical energy to heat energy and to distribute the heat energy. The heating component includes a heat generating element for converting electrical current to heat energy and a heat spreading element comprising carbon thermally coupled to the heat generating element. The modules may further include a thermal insulation layer. The modules may also include a receiving power connector electrically connected to the heat generating element. The modules may include a seam or hinge formed in a fashion that facilitates folding of the modules in a fashion which allows support members to support a module on an edge of the module.
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1. A heating unit for use in heating one or more items, the heating unit comprising: a first wall module forming first and second walls of the heating unit and a second wall module forming third and fourth walls of the heating unit, the first and second wall modules being configured for selective co
1. A heating unit for use in heating one or more items, the heating unit comprising: a first wall module forming first and second walls of the heating unit and a second wall module forming third and fourth walls of the heating unit, the first and second wall modules being configured for selective coupling to one another to at least partially define an interior space of the heating unit, the interior space being configured to receive the one or more items, the first, second, third, and fourth walls each comprising: a first cover layer and a second cover layer coupled to the first cover layer;a rigid frame disposed between the first and second cover layers and configured to provide structural support to the wall;a heating component positioned between the first and second cover layers, the heating component including a heat generating element for converting electrical current to heat energy and a heat spreading component comprising a contiguous planar laminate sheet of carbon thermally coupled to the heat generating element for substantially uniformly spreading the heat energy over the wall, the heat generating element of the heating component in the third wall being selectively electrically coupleable to the heat generating element of the heating component in the second wall and being electrically coupled to the heat generating element of the heating component in the fourth wall; andan insulation layer positioned at one side of the heating component and configured to direct heat energy to the interior space of the heating unit; anda lid module configured to rest upon the first and second wall modules to cover and retain heat within the interior space of the heating unit. 2. The heating unit of claim 1, wherein the heating component of the first wall includes a receiving power connector electrically connected to the heat generating element of the first wall, the receiving power connector configured to couple to an electrical power source. 3. The heating unit of claim 2, wherein the heat generating elements of the first and second walls are electrically connected by a first wire such that electrical power received by the receiving power connector can be transferred by the heat generating element of the first wall and the first wire to the heat generating element of the second wall. 4. The heating unit of claim 3, wherein the heating component of the second wall further includes an outgoing power connector electrically connected to the heat generating element of the second wall. 5. The heating unit of claim 4, wherein the heating component of the third wall includes a receiving power connector electrically connected to the heat generating element of the third wall, the receiving power connector of the third wall configured to selectively couple to the outgoing power connector of the second wall. 6. The heating unit of claim 5, wherein the heat generating elements of the third and fourth walls are electrically connected by a second wire such that electrical power received by the receiving power connector of the third wall can be transferred by the heat generating element of the third wall and the second wire to the heat generating element of the fourth wall. 7. The heating unit of claim 1, wherein at least one of the first, second, third, and fourth walls is configured to be used as a door to access the interior space of the heating unit. 8. The heating unit of claim 1, wherein the first and second walls are pivotally coupled to one another by a hinge. 9. The heating unit of claim 1, wherein the third and fourth walls are pivotally coupled to one another by a hinge. 10. The heating unit of claim 1, wherein the heat spreading element comprises graphite. 11. A heating unit for use in heating one or more items, the heating unit comprising: a first wall;a second wall coupled to the first wall at a first hinge such that the first and second walls can pivot relative to each other and about the first hinge, the first and second walls selectively pivoting about the first hinge between a collapsed storage position and an erect assembly position;a third wall that can be selectively coupled to the second wall;a fourth wall coupled to the third wall at a second hinge such that the third and fourth walls can pivot relative to each other and about the second hinge, the third and fourth walls selectively pivoting about the second hinge between a collapsed storage position and an erect assembly position, the fourth wall selectively coupling to the first wall, wherein, when the first, second, third, and fourth walls are in the erect assembly positions and the third wall is coupled to the second wall and the fourth wall is coupled to the first wall, the first, second, third, and fourth walls cooperate to at least partially define an interior space of the heating unit, the interior space being configured to receive the one or more items, each of the first, second, third, and fourth walls comprising: a rigid frame configured to provide structural support to the wall;a heating component positioned within the rigid frame, the heating component including a heat generating element for converting electrical current to heat energy and a heat spreading component comprising a contiguous planar laminate sheet of carbon thermally and adhesively coupled to the heat generating element for substantially uniformly spreading the heat energy over a surface of the wall, the heat generating element of the heating component in the third wall being selectively electrically coupleable to the heat generating element of the heating component in the second wall and being electrically coupled to the heat generating element of the heating component in the fourth wall; andan insulation layer positioned at one side of the heating component and configured to direct heat energy to the interior space of the heating unit; anda lid configured to rest upon the first, second, third, and fourth walls to cover and retain heat within the interior space of the heating unit, the lid having first and second panels which can be pivoted about a third hinge to provide access to the interior space of the heating unit. 12. The heating unit of claim 11, wherein the first, second, third, and fourth walls comprise one or more fasteners for selectively securing the first and fourth walls together and the second and third walls together. 13. The heating unit of claim 12, wherein the one or more fasteners comprise grommets, snaps, cords, straps, rope, or a combination thereof. 14. The heating unit of claim 11, wherein the lid comprises flaps arranged to prevent or inhibit wind from entering the interior space of the heating unit. 15. The heating unit of claim 11, wherein the heat spreading component is thermally isotropic in one plane. 16. A heating unit for use in heating one or more items, the heating unit comprising: a first module comprising: first and second cover layers forming a first envelope;first and second rigid frames positioned side by side within the first envelope and configured to provide structural support to the first module;first and second heating components positioned within the respective first and second rigid frames, the first and second heating components being configured to convert electrical energy to heat energy and to distribute the heat energy, the heating components each comprising: a heat generating element for converting electrical current to heat energy, the heat generating element of the first heating component being electrically coupled to the heat generating element of the second heating component; anda heat spreading component comprising a contiguous planar laminate sheet of carbon thermally coupled to the heat generating element;first and second thermal insulation layers positioned at one side of the respective first and second heating components and within the first envelope; anda first hinge formed in the first module between the first and second rigid frames, the first hinge formed in a fashion that facilitates selective folding of the first module between a collapsed storage position and an erect assembly position in which the first and second rigid frames support the first module on an edge of the first module;a second module comprising: third and fourth cover layers forming a second envelope;third and fourth rigid frames positioned side by side within the second envelope and configured to provide structural support to the second module;third and fourth heating components positioned within the respective third and fourth rigid frames, the third and fourth heating components configured to convert electrical energy to heat energy and to distribute the heat energy, the heating components each comprising: a heat generating element for converting electrical current to heat energy, the heat generating element of the third heating component being selectively electrically coupleable to the heat generating element of the second heating component and being electrically coupled to the heat generating element of the fourth heating component; anda heat spreading component comprising a contiguous planar laminate sheet of carbon thermally coupled to the heat generating element;third and fourth thermal insulation layers positioned at one side of the respective third and fourth heating components and within the second envelope; anda second hinge formed in the second module between the third and fourth rigid frames, the second hinge formed in a fashion that facilitates selective folding of the second module between a collapsed storage position and an erect assembly position in which the third and fourth rigid frames support the second module on an edge of the second module;one or more fasteners coupled to or formed in at least one of the first, second, third, or fourth cover layers, and configured to allow the first and second modules to be selectively connected together in a fashion such that the first and second modules can be substantially arranged into walls of the heating unit; anda lid module configured to cover the top of and retain heat in the heating unit, the lid module comprising: fifth and sixth cover layers forming a third envelope;fifth and sixth rigid frames positioned side by side within the third envelope and configured to provide structural support to the lid module;fifth and sixth thermal insulation layers positioned within respective fifth and sixth rigid frames and within the third envelope; anda third hinge formed in the lid module between the fifth and sixth rigid frames, the third hinge formed in a fashion that divides the lid module into a first panel and a second panel, the third hinge facilitating selective folding of the lid module in a fashion which allows the first panel or the second panel of the lid module to be used as a door to access an interior space of the heating unit. 17. The heating unit of claim 16, wherein the cover layers comprise vinyl. 18. The heating unit of claim 16, wherein the insulation layers comprise closed cell foam. 19. The heating unit of claim 16, wherein the heating unit comprises a thermostat configured to regulate an operating temperature of the heating unit. 20. The heating unit of claim 19, wherein the thermostat is incorporated in a temperature controller, the temperature controller comprising: a receptacle for receiving a receiving power connector electrically connected to the first heating component; anda plug for electrically connecting the temperature controller to a power source.
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