hey guys i want to learn more on climate control for grow tents for temp and humidity all i have found are types of control boxes that manage temp and hum via exhaust fans but they are over $100 wondering if there are any DYIs on climate control?
Humidity. I wouldn't really worry much about it. I did my first grow when it measured around 15.. I started friking out but one smart person told me to do nothing about it, so after few watering sessions and all it got up to 35 and just stays there. I do not have anything to adjust it. Just to measure.
as long as the plants aren't falling over/wilting from being underwatered and the leaves aren't turning white at the tips and the roots aren't getting moldy/rotting from being overwatered don't worry about humidity, obviously if the humidity is too high it will be easy to overwater which is why I have a $10 humidity monitor/thermometer from canadian tire to watch for extremes. Temp is easier to stabilize, I have a space heater from Wal-Mart in a small room that I set to a certain temp and it turns on if the room becomes too cold. Very easy solution if your room is small and cold.