free cooling

  1. Perfect Sun LED

    DIY dry ice cooler

    I have been thinking of cheap ways to cool my grow tent in the summer. I keep it inside the houe right now. It doesn't get too hot here in Oregon, about 85 highs, and a few days it gets in the low 90s. Once in a great while there will be a day or two at 98 or something. First here is a pic of...
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