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greenhouse exhaust fan

Move and refresh the stagnant surroundings in your greenhouse or building to create a healthier and more productive developing environment. These greenhouse exhaust enthusiasts are great for reducing plant and employee heat stress. Our exhaust supporters provide exceptional ventilation for high tunnels and frosty frames. Create a cooler convenient growing environment, which can directly contribute to efficiency, quality and profitability for your greenhouse business. Exhaust followers also works great in workshops and structures.
Move and refresh the stagnant surroundings in your greenhouse to create a healthier and more productive environment. These exhaust & circulating fans are excellent for plant development. Create a cooler more comfortable growing environment, which can directly contribute to efficiency, quality and profitability for your greenhouse business.
The idea of cooling a greenhouse with thermal buoyancy and wind goes back to the beginning of managed environment. All greenhouses built prior to the 1950’s acquired some form of vents or louvers which were opened to allow the excess heat to flee and cooler outside air to enter.

When polyethylene originated with large sheets covering the whole roof, placing vents on the top proved difficult. Engineers after that came up with the idea of using followers that draw outside air flow through louvers in one Greenhouse Exhaust Fan 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 atmosphere movement is needed.

Growers with hoophouses have found that roll-up sides work very well for warm season ventilation. Both manual and motorized systems are available. A spot with good summer 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.

Greenhouses with roof and sidewall vents are powered by the principle that warmth is removed by a pressure difference created by wind and temperature gradients. Wind plays the major function. In a smartly designed greenhouse, a wind quickness of 2-3 miles/hour provides 80% or even more of the ventilation. Wind moving over the roof creates vacuum pressure and sucks the heated air flow out the vent. If sidewall vents are open up, cool replacement surroundings enters and drops to the floor level. If the sidewall vents are closed, great air enters underneath of the roof vent and the heated are escapes out the very best of the vent.

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The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.