Hi,
My scope is at a remote site. When the roof closes the humidity drops but I Ieave the dew heater on in case the roof opens again and the humidity rises.
On nights when it's cloudy and the roof is closed, I keep the cooler off as I am not imaging. But I turn the dew heater on in case the clouds disappear and the roof opens.
Is it OK to leave the dew heater on when the cooler is off?
Thanks,
Jerry