the green end drying section 12 as described above similarly the used drying steam at a temperature of about 345 u00b0 f withdrawn from chamber 56 is passed upwardly through ducts 32 and 34 and through a crossover duct 61 into a horizontal duct 72 to dry end drying section 14 the steam is passed from duct 72 into fan housings 46 and 48 and into the outlet end of chamber 70 at a temperature of about 345 u00b0 f according to the present invention conventionally placed stack 40 is completely sealed by emplacement of baffle 80 therefore no ambient air will be drawn through stack 40 into duct 72 even though there is a subatmospheric pressure in this duct fan housing 46 is equipped with a blower fan 82 fan housing 48 is equipped with an identical blower fan not shown heated drying steam conveyed from duct 72 into housings 46 and 48 is blown by the blower fans downwardly through vertical ducts 42 and 44 into dry end drying chamber 70 the drying steam blown into ducts 42 and 44 is conveyed into chamber 70 through a manifold apparatus similar to that of fig5 in duct 42 and similar manifold.