In the past, homeowners had to put up with the inefficient venting of their dryer appliance exhaust due to numerous friction causing bends or kinks in the flex duct hose that connects the dryer to the wall exhaust pipe. Lint build-up and a fire hazard are the unwelcome bi-products of these annoying bends. In order to accommodate these flow restrictive bends, the dryer appliance had to be located five to six inches away from the wall, taking away from valuable living area.
Today, you can place the dryer flush to the wall without crushing the exhaust hose or restricting airflow.