Wherever your greenhouse is located, it can get hot at many times of the year. It is crucial that you get those high temperatures out of the greenhouse not only for your growing pleasure but for the comfort of your plants. Rion has come up with several products to help you control those high swings of temperatures with windows and vents. If you have any questions on any of these accessories please feel free to email us back at questions or if you prefer you can call us toll free, Monday-Friday, 10:00 AM - 4:00 PM Eastern Standard Time, at 1-800-635-3621.

	Rion Windows
	Rion has designed a louvre window that replaces one of the back panels in the greenhouse. Shown to the left is actually two louvre windows. All the GH40 greenhouses come with one louvre window but in hotter climates, we recommend you purchase an additonal window. This item ships freight free if ordered at the same time as the Greenhouse order.
	Louvre Window

	Rion Automatic Venting Window
	Automatically opens and closes Roof Vent when temperature changes. The opener has a metal cylinder containing a mineral which expands when heated. This pushes a piston that opens the vent. As the temperature cools, the mineral shrinks and a spring closes the vent and resets the piston. The opening and closing of the vent is gradual, allowing just the right amount of air flow for cooling. Like the Juliana automatic venting windows,we recommend removing the cylinder during periods with frost as the openers may try to open the windows when the sun warms up the cylinders. If the windows are frozen, this may cause the cylinders to burst due to their demand for getting rid of their surplus energy. This item ships freight free if ordered at the same time as the Greenhouse order.

	Rion Roof Window
	Designed for the Rion 40 Series. These roof windows have an adjusting lever to manually open and reduce air temperatures inside the greenhouse   This item ships freight free if ordered at the same time as the Greenhouse order.

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