Heating system for hot coupling or laminating films or thin sheets

A heating system (1) for hot coupling or laminating at least two films or thin sheets that are dragged by at least one moving support (2;

• 2b), said heating system (1) comprising at least a heater group (10) comprising at least:
• a burner (14) fed with a combustive agent and a fuel, and
• a chamber (11) delimited by a radiating internal face (12) and a non-radiating external face (13);
• wherein said burner (14) comprises at least one combustion head (15) generating an aeriform flow at temperature of combustion fumes that is directed towards said chamber (11) and heats its radiating internal face (12) and wherein said radiating internal face (12) faces said at least one moving support (2;
• 2b) so that a heating volume (3) is defined between said radiating internal face (12) and said at least one moving support (2;
• 2b) through which said at least two films or thin sheets pass and are heated up to their hot coupling temperature by the heat released by said radiating internal face (12),
• characterised in that said chamber (11) is an airtight chamber inside which said combustion fumes are airtight confined with respect to said heating volume (3) as well as to the external environment.