Greenhouse Cylinder auto-vents: How do I set temp? + ideal opening temperature?
Hello all, Re Greenhouse cylinder auto-vents (i.e. the ones sat in the greenhouse roof that automatically open/close a roof pane depending on the temperature). I have a new greenhouse, it will be used as a "cool" greenhouse (i.e. it stays above 7.c during winter in order to keep the plants alive). But once it hots up in spring/summer, what temperature range should I aim to keep it within? In other words:
1. What is the best temperature to set the cylinder auto-vents to open/close at?
2. How do you set the auto-vents to open at a certain temperature in the first place?
Thanks for any help!