Can You Build a DIY Swamp Cooler for Under $100?

Gathering Materials

To build a basic DIY swamp cooler, you will need a few essential materials. Start by gathering a 5-gallon plastic bucket, a piece of 6-8 inches diameter PVC pipe, a 90-degree PVC elbow, a spray nozzle, a 12V fan (like a computer fan), a small pump, and a 12V battery or power source. The total cost for these materials is approximately $50-$70.

Assembling the Swamp Cooler

Assemble the DIY swamp cooler by attaching the PVC elbow to the PVC pipe and securing it to the top of the 5-gallon bucket. Next, attach the spray nozzle to the PVC elbow and the fan to the side of the bucket. Use a drill to create a few small holes in the bucket’s lid for the pump to draw water from the bottom of the bucket. This assembly will help circulate the water and create a cooling effect.

Operating the Swamp Cooler

To operate the DIY swamp cooler, fill the 5-gallon bucket with water and place it in an area with a temperature difference between the inside and outside. Turn on the fan and use the small pump to circulate the water from the bottom of the bucket to the spray nozzle. As the water is sprayed into the air, it will evaporate, creating a cooling effect. The ideal operating temperature for this DIY swamp cooler is between 70°F and 90°F (21°C to 32°C), making it suitable for dry climates with moderate temperatures.