Plastic panel having channels on both sides, and system and method for producing such panel

A system for producing a plastic panel, the system comprising:

• an extrusion molding dye comprising openings defining first and second walls and a set of connecting structures, wherein said walls are generally parallel to one another and generally perpendicular to said connecting structures;
• a pressure source adapted to apply pressure to a partially liquefied mixture of plastic such that the mixture is forced through said dye;
• and
• a channel indenting assembly comprising:
• a channel pressing element;
• a heating element adapted to heat said channel pressing element;
• and
• a heating element control circuit comprising:
• a temperature sensor, and regulated heating element power source adapted to regulate power delivery to said heating element based on a signal received from said sensor.

A method of producing a plastic panel, the method comprising:

• applying pressure to a partially liquefied mixture of plastic such that the mixture is forced through a dye including openings defining first and second walls and a set of connecting structures, wherein said walls are generally parallel to one another and generally perpendicular to said connecting structures;
• pressing a channel in at least one wall of the panel by pressing a heated channel pressing element against a wall;
• and
• regulating power delivery to a heating element connected to the channel pressing element based on a signal received from a temperature sensor functionally associated with the heating element.