Evaporative cooling is a method that can be used to lower temperatures in your greenhouse. For many years, the standard way to do this has been through the fan and pad system.
This system relies on exhaust fans to pull air through the large surface area of evaporative cooling pads. As water evaporates, it cools the indoor air as it moves through the cool pads.
As with our heating and ventilation systems, the Williamson Greenhouses team can match a cooling system to your greenhouse to reliably lower the temperature and help maintain a better growing environment. As you would expect, fan and pad systems need to be sized appropriately to achieve maximum cooling efficiency.
In this system, aspen or cellulose pads are mounted in one end wall or a sidewall of the greenhouse. The greenhouse cool pad is supplied with water from a pipe above the pads and excess water is collected in a gutter at the bottom.
Air drawn through the wet pads by fans mounted in the opposite end wall or sidewall is saturated and cools the greenhouse. The pads are sometimes removed for the winter to allow more light to enter the greenhouse.
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