The rion automatic greenhouse vent opener automatically controls the temperature in all rion greenhouses.
Rion automatic roof window opener.
The shutters are controlled manually for unsteady airflow to aid in cooling on warmer conditions.
The opening and closing of the window is gradual allowing just the right amount of air flow for cooling.
The vent arm was designed with the use of natural wax that expands as the air gets warmer to push a piston which raises the window then contracts as it cools closing with the use of a spring.
The rion side louver window is intended to enhance the air circulation and help control the temperature in your rion ecogrow hobby gardener grand gardener and prestige greenhouse.
The shutters are controlled manually for variable airflow to help aid in cooling on warmer days.
W x 2 4 in.
The automatic vent opener was designed to automatically control the temperature in all rion greenhouses.
The side louver window can be fitted with rion s automatic louver opener to provide the ideal airflow into the greenhouse.
Second these openers are not made by rion but by palhram and are in fact palhram 701338 openers which can be purchased for far less money in many places including this very web site.
D x 25 2 in.
Overview the rion automatic louver side window opener is designed to automatically control the temperature and provide additional ventilation in all rion greenhouses.
H adjustable ventilation provides and increase airflow and aides cooling during warmer days interior shutters are operated manually for variable airflow.
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The side louver window can be fitted with rion s automatic louver opener to provide the ideal airflow into the greenhouse.
Free shipping by amazon.
Only works with all rion greenhouse models.
All you need to do is to install it on your roof vent window and it automatically starts working.
Works with all rion greenhouse models only.
As the air inside the greenhouse warms the vent gradually opens to allow the correct amount of air flow into the greenhouse and closes when the optimal temperature is reached.
When paired with the roof vent the louver window can provide improved air circulation.
Rion ecogrow 2 roof vent.
As the air inside the greenhouse warms the vent gradually opens to allow the correct amount of air flow into the greenhouse and closes when the optimal temperature is reached.
Bibistore auto vent opener agricultural greenhouse solar powered automatic window opener heat sensitive roof ventilation controller lifts 15 lbs no power needed two springs 4 0 out of 5 stars 1.
Usually ships within 2 to 3 days.
As the air inside the greenhouse warms the vent gradually opens to allow the correct amount of airflow into the greenhouse and closes when the optimal temperature is reached.
Automatically opens and closes the roof vent window.
