Move and refresh the stagnant air in your greenhouse or building to create a healthier and more productive growing environment. These greenhouse exhaust followers are excellent for reducing plant and employee heat stress. Our exhaust followers provide excellent ventilation for high tunnels and chilly frames. Create a cooler convenient growing environment, that may directly contribute to productivity, quality and profitability for your greenhouse business. Exhaust followers also works great in workshops and buildings.
Move and refresh the stagnant atmosphere in your greenhouse to make a healthier and more productive environment. These exhaust & circulating fans are excellent for plant growth. Create a cooler more comfortable growing environment, which can directly contribute to productivity, quality and profitability for your greenhouse business.
The concept of cooling a greenhouse with thermal buoyancy and wind dates back to the start of controlled environment. All greenhouses built just before the 1950’s acquired some form of vents or louvers that were opened to allow the excess heat to flee and cooler outside air flow to enter.
When polyethylene was developed with large sheets covering the whole roof, placing vents on the top proved difficult. Engineers then came up with the concept of using followers that attract outside atmosphere through louvers in one endwall and exhaust it out the opposite end. With thermostatic control, this is, and still is the accepted way for cooling many structures where positive air movement is needed.
Growers with hoophouses possess discovered that roll-up sides work very well for warm time of year ventilation. Both manual and motorized systems can be found. A spot with good summertime breezes and lots of space between houses is needed. It can help to have greenhouses designed with a vertical sidewall up to the elevation of the attachment rail to lessen the amount of rain that may drip in.
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