66 utilizes steam at 150 sq in 366 u00b0 f in each of the two pressurized steam circuits the latent heat of the steam is used such that the condensate collected by the condensate traps 74 is of essentially the same temperature and pressure as the steam to combine the condensate of the higher pressure circuit with the lower would cause the condensate to flash therefore the higher pressure condensate must be lowered in temperature before combining this is accomplished by introducing the condensate from high pressure line 76 to a first heat exchanger 78 which lowers the temperature and pressure of the condensate before combining the condensate with the condensate from the lower pressure line 79 of the double facer 66 in a second heat exchanger 80 here the combined condensate is further lowered in pressure and temperature before entering a third heat exchanger 82 for final reduction of temperature and pressure for passage to the lower pressure deaeration 84 coolant for the heat exchangers in this system comprises the boiler feedwater from the deaeration 84 the feedwater passes from the deaeration 84 through feedline 86 by high pressure boiler feed pump 88 to the fore tube 90 of the lowest temperature third heat exchanger 82 in the three exchanger array of the exemplar system as the feedwater cools the condensate the feedwater is raised in temperature as the feedwater passes from the third exchanger 82 to the second exchanger 80 and finally to the first exchanger 78 where it exits to the boiler 92 through feedline 86 with a rise in temperature from 240 u00b0 f to 348 u00b0 f the heat exchanger array 60.