Purchasing an all in one washer dryer will greatly improve your laundry experience all around. Not only will it help you save money on utility costs, it will also help you to complete your chores in a shorter amount of time. Washer Dryer Combos are especially appropriate for rental apartments that do not have a water hookup for the washer, or a gas or electric heat source for the dryer. The washer dryer combo unit plugs into 110 volts of electricity, and hooks up to a kitchen sink for draining. The dryer portion of the unit uses ventless technology.