Only 4 left in stock order soon.
Temp activated roof ventilator.
They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling.
Opening temperature can be adjusted from 56 f to 70 f and maximum opening of 18 is reached at approximately 20 f above opening temperature.
This switch works opposite of that so it is of no use for controlling an attic cooling fan.
Greenhouse vent automatic opener autovent solar heat sensitive greenhouse window roof vent adjustable temperature sensor 1 0 out of 5 stars 1.
They are typically easier to install and won t detract from the appearance of your roof.
They are typically easier to install and won t detract from the appearance of your roof.
Normally an attic fan control switch turns an exhaust fan on when the attic gets around 105 degrees and then turns it off when the attic temperature drops to around 95 degrees.
This is the strongest vent opener available with a lifting capacity of 65 lbs.
Window opener greenhouse window opener vent autovent solar heat sensitive automatic greenhouses roof lifts 15 lbs.
Master flow egv5 gable mount attic ventilators are master flow egv5 gable mount attic ventilators are a great choice for exhaust ventilation.
Automatic vent openers are a popular choice with many greenhouse growers because they are completely solar powered and do not require any electricity.
When heat builds up within the cylinder mechanism the vent begins to open and later when the temperatures cool down the vent starts to close.