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 superb ventilation for high tunnels and cool frames. Create a cooler more comfortable growing environment, that may directly contribute to productivity, quality and profitability for your greenhouse business. Exhaust fans also works great in workshops and structures.
Move and refresh the stagnant air in your greenhouse to 
create a healthier and more productive environment. These exhaust & circulating fans are great for plant growth. Create a cooler convenient growing environment, which can directly contribute to efficiency, quality and profitability for your greenhouse business.
The concept of cooling a greenhouse with thermal buoyancy and wind goes back to the start of controlled environment. All greenhouses built just before the 1950’s experienced some type of vents or louvers which were opened to enable the excess heat to escape and cooler outside atmosphere to enter.
When polyethylene was developed with large sheets covering the whole roof, placing vents on the top proved difficult. Engineers after that came up with the concept of using fans that draw outside surroundings through louvers in a single endwall and exhaust it out the opposite end. With thermostatic control, this was, and still may be the accepted method for cooling many structures where positive air flow movement is needed.
Growers with hoophouses possess found that roll-up sides work well for warm season ventilation. Both manual and motorized systems are available. A location with good summer breezes and plenty of space between homes is needed. It helps to have greenhouses designed 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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