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How to Build a Greenhouse Evaporative Cooler
How to Build a Greenhouse Evaporative Cooler. Greenhouses require a great deal of work but offer the reward of nourishing and delicious vegetables. A greenhouse evaporative cooler removes heat and moisture from the greenhouse so that it does not become too hot for the plants and vegetables. Evaporative coolers can be purchased at stores, or you can...
Greenhouses require a great deal of work but offer the reward of nourishing and delicious vegetables. A greenhouse evaporative cooler removes heat and moisture from the greenhouse so that it does not become too hot for the plants and vegetables. Evaporative coolers can be purchased at stores, or you can make your own. A good homemade evaporative cooler should lower the temperature in a greenhouse by 10 to 15 degrees. They are mostly used in areas where the temperature in a greenhouse can exceed 115 degrees Fahrenheit. A homemade evaporative cooler pumps water through a pipe, then spreads cooled air through the greenhouse using a fan with a filter.
Things You'll Need
Box fan
Fiber pad
Screws
Drill
Perforated PVC pipe 3 feet long and 1 inch in diameter
Small garbage can
Water
Submersible pump
Heavy-duty glue
How to Build a Greenhouse Evaporative Cooler
Cut around the edges of the filter pad so that it fits entirely over the front of the box fan.
Drill a hole in each corner of the fan and attach the filter over the fan with screws. It should fit completely without being loose.
Drill a hole in the side of the fan that is large enough for the perforated PVC pipe. Push about half an inch of the PVC pipe through the hole and glue around the outside rim of the pipe where it is inserted into the fan. Let it dry completely.
Fill a small garbage can three-fourths full of water. Submerge the pump and attach the other end of the PVC pipe to the pump.
Place the fan on a small table. Place the garbage can next to the table on the floor next to the box fan. Turn the pump and the fan on to cool the greenhouse.
