Rion Automatic Roof Vent Opener for Rion Greenhouses antique potting bench Durable laser cut

Durable laser cut

82Class: 150Sub: 4SHIPPING FROM CITY

It has a commercial exhaust fan

1 – Two-stage commercial thermostat to control fan & shutters and 1- single-stage thermostat for second fan

peak): 139Dimensions (in): 506" L x 141" W x 139" HSidewall Height (in): 120Total Product Weight: 1065Snow Load (Lbs/Sq Ft): 30

Rion Automatic Roof Vent Opener for Rion Greenhouses antique potting bench Durable laser cutThe Automatic Vent Opener was designed to automatically control the temperature in all Rion Greenhouses. 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 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