Quote Originally Posted by tlranger
Think you right there, do you have thermometer with the minimum/maximum feature.
Yes, I do. Maximum was 32 °C - Minimum 19 °C. But I believe the 32 is from the time I had them by the window. In the growroom the highest was 27 °C - lowest 19 °C but before I installed a heater. The heater now will run if the temperature falls under 23 °C. The problem with these heaters is that they dry the atmosphere too much, the humidity might drop to 35% with this thing running. And the fact that they consume 1000W!