As the temperature cools the material shrinks and a spring closes the vent and resets the piston.
Rion automatic roof vent opener for optimal airflow.
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.
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.
Provides and increases airflow.
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 temperature cools.
The rion automatic roof vent opener is designed to automatically control the temperature in all rion greenhouses.
The rion automatic louver side window opener is designed to automatically control the temperature and provide additional ventilation in all rion greenhouses.
Manual adjustment for variable airflow.
This roof vent will also enable you to improve the sun rooms air circulation.
Manual adjustment for variable airflow.
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.
Aids in cooling your sun room on warmer days.
This rion roof vent kit provides additional air ventilation increases circulation and helps regulate temperatures.
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.
Helps regulate temperature and humidity levels.
Automatically opens and closes the roof vent window when temperature changes.
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.
Polycarbonate panels for 100 uv protection.
This pushes a piston that opens the window.
The opener has a metal cylinder containing special material which expands when heated.
Can be fitted with the rion automatic roof vent opener for optimal airflow.
I did not appreciate having to pay 20 more per opener for the rion name when rion isn t even the manufacturer.
Can be fitted with the rion automatic roof vent opener item 47315 sold separately for automatic optimal airflow.
The automatic vent opener was designed to automatically control the temperature in all rion greenhouses.
