Frugal

So each clothes dryer appliance has an exit port. You connect a hose to it to vent the damp air to the outside.

I want all dryers to have an intake port so that I can use cold air from the outside for drying. This will keep me from using (expensive) warm air from the inside of my house.

I suspect this will also make the dryer more efficient because the cold incoming air could contain less humidity.