D x 25 2 in.
Rion automatic roof window opener.
All you need to do is to install it on your roof vent window and it automatically starts working.
The shutters are controlled manually for variable airflow to help aid in cooling on warmer days.
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 automatic greenhouse vent opener automatically controls the temperature in all rion greenhouses.
The automatic vent opener was designed to automatically control the temperature in all rion greenhouses.
Overview the rion automatic louver side window opener is designed to automatically control the temperature and provide additional ventilation in all rion greenhouses.
Free shipping by amazon.
Only works with all rion greenhouse models.
W x 2 4 in.
Rion ecogrow 2 roof vent.
The side louver window can be fitted with rion s automatic louver opener to provide the ideal airflow into the greenhouse.
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.
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.
Automatically opens and closes the roof vent window.
I did not appreciate having to pay 20 more per opener for the rion name when rion isn t even the manufacturer.
The opening and closing of the window is gradual allowing just the right amount of air flow for cooling.
1 0 out of 5 stars 1.
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.
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.
Works with all rion greenhouse models only.
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.
The shutters are controlled manually for unsteady airflow to aid in cooling on warmer conditions.
When paired with the roof vent the louver window can provide improved air circulation.
H adjustable ventilation provides and increase airflow and aides cooling during warmer days interior shutters are operated manually for variable airflow.
Usually ships within 2 to 3 days.
