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What if the pad is located outside the air inlet opening?

April 26, 2017air Inlet located opening outside pad

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What if the pad is located outside the air inlet opening?

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10 Posted

If the pad is located outside the air inlet opening, it should be continuous, have no large obstructions and should be centered in elevation on the center of the pad so that the airflow is horizontal as it leaves the opening. When the height of the pad exceeds that of the air inlet opening, the pad will extend above and/or below the opening. When this occurs, the pad should be set back from the wall or sash at a distance of at least half the amount of the extension to provide ample room for air to pass uniformly through the entire pad. When possible the pads should be located on the prevailing wind side of the greenhouse. When the greenhouse is sheltered from prevailing winds by another building or greenhouse located within 25 feet, the location of the pads in relation to prevailing winds is not significant.