dryer uses a heat exchanger to cool the air and condense the water vapor into either a drain pipe or a collection tank. The dryer air is run through the loop again. The heat exchanger typically uses ambient air as its coolant, therefore the heat produced by the dryer will go into the immediate surroundings instead of the outside, increasing the room temperature. In some designs, cold water is used in the heat exchanger, eliminating this heating, but requiring increased water usage.Simple maintenance will wipe out 90 percent of dryer problems.Do your dishes come out spotted and stained? Have you noticed a puddle of water on the floor? Does your dishwasher simply fail to start up? If so, you're not alone. These three complaints make up the vast majority of dryer problems. But now the good news: You can solve these problems about 90 percent of the time by calling for professional help. Name: Guflam mob# 0506484707