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11 DIY Air Conditioners to Keep You Cool This Summer

Are you having problems with your air conditioner? These DIY air conditioners will keep you cool in the scorching heat.

You are melting and need to cool off. You either have an Aircon on the blink or none, and you can’t deal with this insane heat.

What can you do then? It’s easy to build your air conditioner. Does that sound too complex? It’s not.

These DIY air conditioners demonstrate how simple it is to cool your home and beat the heatwave.

1. Homemade air conditioner with a fan and ice

Although there aren’t many DIY options, this is where DIY aircon projects start: A fan and some ice. The fan blows cool air, not air.

The ice, which is in the form cubes from your freezer, is placed on a tray. The fan is slightly angled and the air is cooled by the air passing over the ice. How does it work?

I tried it myself and found a few problems. The ice cubes are much easier to melt than larger blocks of ice. A faster fan will produce better results than one that is slower.

This DIY air conditioner system is easy to make. There is still a lot of room for improvement.

2. Aircon DIY: Easy plastic soda bottle

This is a better alternative. This video shows small soda bottles being attached to the fan’s back using cable ties.

The ice is contained within the bottles. The fan draws air through the bottles, and then cools it with the ice.

This air conditioner is very affordable and can be assembled in a matter of minutes. We have compiled a list of top soldering irons that beginners can use.

Cool box ice blocks are a great alternative to ice cube tray trays. Attach them to the fan’s back with cable ties. Make sure to keep any condensation from drippings under the bag.

3. Portable Air Cooler Milk Carton

This milk carton is small enough to keep you cool.

This build includes a computer fan, a 12V mains adapter and hot glue gun. The fan pulls in air and pushes it through ice cubes in the carton before pushing it out of the opening. This is an especially smart design as milk cartons are meant to keep the product as cool as possible.


It is suitable for use on a desktop. You could also run a USB fan from your computer, or use a portable powerbank instead of a 12V. It’s also a compact AC solution that can be used in your car. It can be easily plugged into your car using a car charger if you have a USB fan.

4. Cool Box Air Conditioner

This DIY air conditioner uses the same components: a fan, some water, and a container. It also features drainpipe tubing for an outlet.

Two circles are made into the cool box’s lid. The fan is fitted into one of the circles. The outlet pipe is the other. The cool box would normally contain food and drink. Inside the cooler is a large block of ice.


The fan draws air in, cools it, and then pushes out to chill the room.

5. Ice Chest Air Conditioner

YouTube has many variations of the project. All of them are worth checking out. This slightly better alternative is worth mentioning.

A Styrofoam Ice chest is combined here with a fan and two angled PVC pipe joints. This makeshift air cooler is large enough to store huge blocks of ice and will keep your room cool during heatwaves.

Keep an empty bucket nearby to empty the ice chest. Lifting the ice chest could cause structural problems that can lead to cracking. It is best to leave it where you find it to prevent leaks.


6. Portable Ice Bucket Air Conditioner

This is in a way a combination of the cool box and ice chest DIY aircon build above.

A compact fan is placed face down in a bucket lid. Two short lengths are attached to the pipe. You can attach the pipes with hot glue, expanding foam, or bathroom sealant.

You’re familiar with the process: air is drawn into the bucket and across the ice before being drawn out through the pipes.

The DIY air cooler can now be carried around. To transport the bucket, simply lift its handle. Keep it in reach of a power source or modify it to run on a battery to get you anywhere.

7. Convert your standing fan into an air conditioner

We’ve so far only considered projects that required a fan and some water. You can make your fan more air-conditioned by adding 1/4-inch copper tubing to it.

The tubing is mounted on the fan cage’s front. Cold water is then pumped through the tubing using a fountain pump. The water flows through the vinyl tubing first, then into copper tubing and back to the pump. Before it reaches copper, ice bags are placed on top of the vinyl tubes to keep the water cool.


It is more complex than some of the other projects, but the results look great and the process is very smooth.

8. Portable Fan Cannon for Air Conditioners

This DIY unit can be made with copper coiling and a fan-shaped fan.

The copper coil is wrapped around a large PVC tube and connected to the plastic tubing. The pipes are connected to the cooler box and circulate cold water through the system. A fan blows cool air over the copper pipes.

The cooler contains water, ice cubes and the water pump. The fan is located on the outside of the cooler box and can be moved around to direct air where you need it.

The build will take about 1.5 hours if you have enough tools and are willing to spend a little bit on parts. This design is ideal for humid climates. The fan won’t blow directly on water or ice like other projects so it won’t add humidity to your space.

9. Pump-Powered Pond Pump Swamp Cooler

This build does not require a fan and uses a pond pump as well as an evaporative cooler pad. The project builder claims it can lower indoor temperatures by more than 20 degrees F when pinned up to a wooden frame.


Evaporative cooling refers to the process of reducing the temperature by the evaporation liquid. This is basically the way sweat works. It removes heat from the skin’s surface. This method can also be used in industrial cooling systems. However, DIY evaporative cooling should not cost more than $100.

This is, admittedly, the most difficult project on this list and requires cool water.

10. Mini Evaporative Air Conditioner

This tiny container, weighing 34 ounces, can be transformed into an air conditioner. It is ideal for small apartments.

To fit a computer cooling fan into a plastic container, cut a hole and then solder the panel to create ventilation holes. Three sponges, standing up, should be placed inside the container. The fan can then be wired to a 12V power source.

It’s simple: an inexpensive, small, evaporative cooling unit that can be used in small rooms or apartments. Evaporative cooling adds humidity to the air so it is ideal for people living in dry climates.


11. DIY Peltier Thermoelectric Cooler Fans

A DIY AC setup without ice or cooler box is now possible! This amazing project will allow you to make the most of your computer parts.

This portable AC system does not use ice. Instead, it uses the Peltier-1276 thermoelectric cooler. It is a thin electronic component that cools down computers CPUs. To prevent the heat from burning, it is made from semiconductor material sandwiched between ceramic.

You will need a CPU fan and a second cooling fan. A PVC pipe is used to store the parts. Finally, connect a 12V, 5A, power supply via a DC Jack. The parts are glued together using a hot glue gun. Finally, a drill is used for creating air vent holes. You can also cool your room using the same method that cools a computer.

Here are some other ways to stay cool this summer

It’s difficult to do much in hot weather, except for watching TV, reading, and topping up your tan. Please use sunblock for only a short time and make sure you have plenty.

You can keep cool with a DIY air conditioner. Although it won’t work long-term, it can be a quick fix for a broken air conditioner. A DIY unit can also be used to cool areas that are subject to heatwaves.


These are some other ways to stay cool.

  • A cold shower/bath is This is a great option when things get too much.
  • Plan your windows. Close them when it’s warm during the day and open at night to let in cool air. Cool air should remain trapped in your windows for at least a few hours after you close them in the morning.
  • Turn off unnecessary electrics. Televisions, clothes dryers and computers must be turned off. They all increase the heat in your house, which can be dangerous in hot weather.

If you are reading this article because your air conditioner is not cooling properly, please check out our post on common air conditioner errors to avoid.




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