Dryers only have one hose fitting. - To blow hot air out.
But this Instructable shows how to create a dryer hood with a fitting for a hot air intake hose.
Once the hood is attached, you connect the dryer to your hot air source with a dryer hose, and use free energy - hot air- to dry your clothes.
On hot summerdays , I use it to take hot attic air right into the dryer in my cool basement.
On warm days I use the air dry or the low temperature "Permanent-Press" setting.
In winter I use my dryer normally.
You can use your attic, a warm room, a solar heater, or you can use outdoor air as a source of warm or hot air. (The source of warm or hot air should be drafty, or open to a source of replacement air, like the outdoors.)
This Instructable helps you avoid consuming your indoor air, it makes your dryer more efficient, it saves energy on drying, and It can save on air conditioning cost too.
This Instructable is intended for electric dryers only, and is NOT recommended for gas models.
Modifying a gas model would present special challenges and hazards, which I have not addressed.
Material : Use a 4 foot roll of Aluminized Bubblepack plastic (Astro-foil) or similar material, a scissors, duct tape, plus scrap metal or cardboard and a dryer vent hose. Thats all thats needed. A screwdriver is optional.
Step 1: Unplug and Inspect
Look for the slotted vents in the back.