Move and refresh the stagnant atmosphere in your greenhouse or building to make a healthier and more productive growing environment. These greenhouse exhaust enthusiasts are great for reducing plant and employee heat tension. Our exhaust followers provide excellent ventilation for high tunnels and cold frames. Create a cooler convenient growing environment, which can directly contribute to productivity, quality and profitability for your greenhouse business. Exhaust enthusiasts also works great in workshops and structures.
The idea of cooling a greenhouse with thermal buoyancy and wind dates back to the start of controlled environment. All greenhouses constructed prior to the 1950's experienced some kind of vents or louvers which were opened to enable the excess heat to escape and cooler outside air flow to enter.
When polyethylene originated with large sheets covering the whole roof, putting vents on the top proved difficult. Engineers after that came up with the concept of using enthusiasts that draw outside air through louvers in a single endwall and exhaust it out the contrary end. With thermostatic control, 
this was, and still may be the accepted method for cooling many structures where positive atmosphere movement is needed.
Growers with hoophouses possess discovered that roll-up sides work well for warm time of year ventilation. Both manual and motorized systems are available. A location with good summer season breezes and lots of space between houses is needed. It helps to have greenhouses made with a vertical sidewall up to the height of the attachment rail to lessen the amount of rain that may drip in.
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