A pressing arrangement (100; 200; 300; 400; 500) for treatment of articles by hot isostatic pressing comprising a pressure vessel including: a furnace chamber comprising a heat insulated casing and a furnace adapted to hold the articles; a load compartment adapted to hold articles to be treated, said load compartment being arranged with at least one top opening and at least one bottom opening, wherein a flow of pressure medium through the load compartment is allowed; a first flow generator (30; 90), the first flow generator (30; 90) including a fan (30; 90), for circulating the pressure medium within the furnace chamber and for enhancing an inner convection loop, the fan being arranged in an opening of a lower part of the load compartment, in which inner convection loop pressure medium has an upward flow through said load compartment and a downward flow along a peripheral portion of the furnace chamber; and at least one second flow generator (31; 51, 52; 61, 62), characterized in that the at least one second flow generator (31; 51, 52; 61, 62) comprises at least one ejector (31; 51, 52; 61, 62) arranged below a bottom insulating portion, the at least one second generator being arranged for generating a flow of pressure medium into said load compartment to enhance said inner convection loop, said flow being generated by transporting pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion and injecting said pressure medium into said load compartment by way of a transport pipe (43; 55) arranged in a via hole of the bottom insulating portion, said ejector having an outlet (33; 54) arranged within the load compartment and downstream of the fan such that pressure medium is injected downstream the fan (30,90) to enhance said inner convection loop. a furnace chamber comprising a heat insulated casing and a furnace adapted to hold the articles; a load compartment adapted to hold articles to be treated, said load compartment being arranged with at least one top opening and at least one bottom opening, wherein a flow of pressure medium through the load compartment is allowed; a first flow generator (30; 90), the first flow generator (30; 90) including a fan (30; 90), for circulating the pressure medium within the furnace chamber and for enhancing an inner convection loop, the fan being arranged in an opening of a lower part of the load compartment, in which inner convection loop pressure medium has an upward flow through said load compartment and a downward flow along a peripheral portion of the furnace chamber; and at least one second flow generator (31; 51, 52; 61, 62), characterized in that the at least one second flow generator (31; 51, 52; 61, 62) comprises at least one ejector (31; 51, 52; 61, 62) arranged below a bottom insulating portion, the at least one second generator being arranged for generating a flow of pressure medium into said load compartment to enhance said inner convection loop, said flow being generated by transporting pressure medium upwards from a space below a bottom insulating portion and above a bottom end portion and injecting said pressure medium into said load compartment by way of a transport pipe (43; 55) arranged in a via hole of the bottom insulating portion, said ejector having an outlet (33; 54) arranged within the load compartment and downstream of the fan such that pressure medium is injected downstream the fan (30,90) to enhance said inner convection loop.