Eco Dry
If you are using the dryer in a heated or cooled space, you have to remember that every minute it is operating, it is pumping 150 or more cubic feet of inside air to the outside. This is air that you have paid to heat or cool and replacement air is being sucked into the space from outside. Lengthening the drying is economical at times of the year when the inside air is not being heated or cooled or if the dryer is in an unheated or uncooled space like a garage, basement or outside utility room. It is economical to not use more heat than is needed for the task, but many factors other than the amount of heat used by the dryer need to be factored into the savings picture.