Evaporative coolers work well in dry climates where the humidity is below 50%. Air
is cooled 10° to 20° F by water evaporation as it is drawn through
the cooler and into the greenhouse.
Determine the volume of your greenhouse - length x width x height.
This number is the recommended "CFM rating" for your greenhouse
cooler. Select an evaporative cooler with this or a higher CFM rating.
See our Evaporative