The present invention by employing a PE (PolyEthylene) form a seat for mounting a hot water pipe, can be processed to form easily the desired as well as to the human body non-toxic solid cheaper than other materials, yet, especially chemical resistance and insulating property is excellent and the safety a is an object to provide a manufacturing method that allows a hot water mat and increase.
In particular, the present invention thus formed form an insertion groove for inserting a hot water pipe in PE foam at a time over the entire length, and wherein the width of the cross section of the insertion groove to the "C" shape, while increasing the production efficiency hot water the tube does not fall easily in the insertion groove has another object to provide a hot water mat and a method for manufacturing a can be increased marketability.
Incidentally, the present invention is the surface layer and the PE by attaching further at least one of a nonwoven fabric and ocher nonwoven fabric between the foam, ensuring the hot water mat rigidity and with the durability and health promotion to be beneficial substance is released into the body while maintaining its shape provided allowing a heated mat and the method of manufacturing the same having to have another purpose.