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Inline exhaust fan before or after carbon filter?
Posted 18 January 2010 - 02:13 AM
Posted 18 January 2010 - 03:36 AM
Thanks johnk, I also have same htg HPS system, only the 250 Watt model. Does your ballast stay cool enough mounted outside the box? I have limited space and currently have mine mounted above my grow area on a shelf. I was thinking of buying an aux. fan to keep air circulated around the ballast. Do you think a aux. fan is necessary or would it be ok to leave it as is? BTW, the space is only 3X3 ft. with about 8 ft. of vertical height. Thanks again from a newbie!
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