According to the invention, each module 1 of the convector has—upstream of the tube bundles 7 in the direction of the air flow according to F1—a chamber 13, called “adiabatic chamber”, delimited laterally by the panels 5 and, in the direction of flow F1, by {HEAD ~ a fill pack} 15 at {TAIL ~ the inlet} and by a fill pack 17 at the outlet  
According to the invention , each module 1 of the convector has — upstream of the tube bundles 7 in the direction of the air flow according to F1 — a chamber 13 , called “ adiabatic chamber ” , delimited laterally by the panels 5 and , in the direction of flow F1 , by { HEAD ~ a fill pack } 15 at { TAIL ~ the inlet } and by a fill pack 17 at the outlet
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