How to Make a Mini Air Cooler

Written by devin backman
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to Make a Mini Air Cooler
Air conditioner repairs can be very expensive. (window air conditioner image by Aaron Kohr from

Air conditioners work by lowering the temperature of the air in your home, unlike a fan which simply moves the air to create wind. Both a new air conditioner and air conditioner repairs can be costly, especially during the summer months when air conditioners are used more frequently. An inexpensive alternative to purchasing an air conditioner or having to call for repairs is to build a small air cooler yourself. You can build one of your own using a few simple tools.

Skill level:

Things you need

  • 1 box fan
  • Screwdriver
  • Scissors
  • Knife
  • Fountain pump
  • Copper tubing
  • Vinyl tubing
  • 2 hose clamps
  • Zip ties
  • Water cooler

Show MoreHide


  1. 1

    Remove the fan from its box and put it on its back with the front facing upwards. You will work with the fan in this position until your air cooler is complete.

  2. 2

    Coil your copper tubing around the fan. Use a zip tie to attach the tubing to the fan grate for every 6 inches of tubing you use. This will be your heat-exchange system.

  3. 3

    Attach vinyl tubing to the feed-end of the copper. Connect the vinyl tubing to your aquarium pump.

  4. 4

    Cut the vinyl tubing in half and connect what's left to the return line of the pump. Clamp the vinyl and copper tubing together, using hose clamps and lead them into the water cooler. This allows the cold water to flow to and from the water cooler.

  5. 5

    Fill the water cooler with ice and water and plug in the pump. Wait for five minutes while the ice and water cool the heat-exchange system. Place the fan right side up and turn it on. You now have cool air blown into your room from the tubing of the fan.

Tips and warnings

  • Control the amount of cold air you want pumped into the room by using your fan's controls.
  • When you plug in the pump, it shows you whether or not there are any leaks in the system. If there are, correct them using a JB weld.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.