Auto Vent Replacement Cylinder

Auto Vent Replacement Cylinder

Replacement cylinder for automatic vent openers.

Refresh your vent openers without replacing the entire mechanism.

Replaces all Winter Gardenz greenhouse cylinders as well as many other models.

1 year warranty

*Note: This is for the black replacement cylinder only and not the complete mechanism.

These cylinders work on a wax mechanism, without electricity. The wax wears down over time and hence the cylinder will need to be replaced. They typically last 1-2 years, but can last longer if you unscrew them over the winter when it's cold and they would be closed anyway. Coastal locations are particularly tough on them, hence they are not recommended for a beach-front property.

Trouble-shooting: If your autovent isn't closing, please check that it is not getting hung up on the roof ribs either side of the roof vent. This can happen sometimes if the vent catches in a strong wind and slides a little along the roof ridge. Simply slide it back into place to where it is sitting in between the roof ribs and not catching on them. Depending on the temperature (ie, if it's above 17 degrees C), you may have to disengage the cylinder to test if the vent fully closes, as it's designed to start opening at 17 degrees anyway.