A pressing arrangement (100; 110; 120; 130; 140) for hot pressing, comprising: a pressure vessel including a furnace chamber adapted to hold articles, which furnace chamber is provided inside the pressure vessel; a heat insulated casing arranged to surround said furnace chamber; a bottom insulating portion (6; 116; 126; 136; 146) arranged beneath said furnace chamber; a cold region arranged beneath said bottom insulating portion, being colder than a region within said furnace chamber; a fan having an adjustable number of revolutions, said fan being arranged at a lower end of said furnace chamber and being arranged to provide a flow of pressure medium into said furnace chamber and a circulation of said pressure medium within the furnace chamber when operated; and at least one valveless feeding passage (40; 60a, 60b; 70) in said bottom insulating portion, said at least one valveless feeding passage having an outlet (41; 61a, 61b; 71) located at a radial and vertical distance relative to said fan, said at least one valveless feeding passage being arranged to provide a connection between said cold region beneath said bottom insulating portion (6; 116; 126; 136; 146) and an inlet of said fan, wherein the fan is configured such that operation above a certain limit number of revolutions determined by a set of parameters enables a sufficient pressure difference between said cold region and said outlet to create a flow of pressure medium from said cold region through said at least one valveless feeding passage to said inlet for mixing said flow from said cold region with a flow of warm pressure medium in a passage above said bottom insulating portion and below said furnace chamber, wherein said flow can be controlled by adjusting said number of revolutions of said fan. a pressure vessel including a furnace chamber adapted to hold articles, which furnace chamber is provided inside the pressure vessel; a heat insulated casing arranged to surround said furnace chamber; a bottom insulating portion (6; 116; 126; 136; 146) arranged beneath said furnace chamber; a cold region arranged beneath said bottom insulating portion, being colder than a region within said furnace chamber; a fan having an adjustable number of revolutions, said fan being arranged at a lower end of said furnace chamber and being arranged to provide a flow of pressure medium into said furnace chamber and a circulation of said pressure medium within the furnace chamber when operated; and at least one valveless feeding passage (40; 60a, 60b; 70) in said bottom insulating portion, said at least one valveless feeding passage having an outlet (41; 61a, 61b; 71) located at a radial and vertical distance relative to said fan, said at least one valveless feeding passage being arranged to provide a connection between said cold region beneath said bottom insulating portion (6; 116; 126; 136; 146) and an inlet of said fan, wherein the fan is configured such that operation above a certain limit number of revolutions determined by a set of parameters enables a sufficient pressure difference between said cold region and said outlet to create a flow of pressure medium from said cold region through said at least one valveless feeding passage to said inlet for mixing said flow from said cold region with a flow of warm pressure medium in a passage above said bottom insulating portion and below said furnace chamber, wherein said flow can be controlled by adjusting said number of revolutions of said fan.