Self-heating product container and/or associated waxing kit

A method comprising:

• providing a kit comprising:
• a self-heating product container comprising:
• a self-contained heater;
• a flexible container physically and thermally coupled to the self-contained heater and containing a product to be heated by an exothermic reaction within the self-contained heater;
• a nozzle or spout physically coupled to the flexible container to define a fluid flow path through which the product to be heated exits the flexible container,
• wherein the self-contained heater comprises:
• a package that defines a first heater compartment and a second heater compartment;
• a first reactant inside the first heater compartment;
• a second reactant within the second heater compartment;
• and
• a frangible seal or barrier in the form of a liquid fuel pouch disposed between the first heater compartment and the second heater compartment and configured such that rupturing the frangible seal or barrier in the form of a liquid fuel pouch enables the first reactant to physically contact the second reactant to thereby produce the exothermic reaction;
• and
• a plurality of product applicators attachments, wherein each of the product applicator attachments is configured to interchangeably engage a distal end of the nozzle or spout;
• activating the self-contained heater by rupturing the frangible seal or barrier in the form of a liquid fuel pouch to initiate the exothermic reaction;
• and
• attaching a first one of the product applicator attachments to the open end of the nozzle or spout.

A self-heating product container comprising:

• a self-contained heater;
• a flexible container physically and thermally coupled to the self-contained heater and containing a product to be heated by an exothermic reaction within the self-contained heater;
• and
• a nozzle or spout physically coupled to the flexible container to define a fluid flow path through which the product to be heated exits the flexible container,
• wherein the self-contained heater comprises:
• a package that defines a first heater compartment and a second heater compartment;
• a first reactant inside the first heater compartment;
• a second reactant within the second heater compartment;
• and
• a frangible seal or barrier disposed between the first heater compartment and the second heater compartment and configured such that rupturing the frangible seal or barrier enables the first reactant to physically contact the second reactant to thereby produce the exothermic reaction.