The humid air is then ducted to the outdoors.Heat for evaporation is taken from the solution pumped through the evaporator(about 9,000 BTU per gallon of evaporation.

• 有一定温度的溶液通过蒸发器，潮湿的空气通过管道排出去（大约蒸发每加仑需要9000BTU的热能）。