Quote Originally Posted by dontbugme
What happens if I don't add ventilation? Because I really can't, short of just opening the cabinet.

This cabinet is 20 inches tall. This is much too small to flower any decent plants right? Anybody have any ideas how I could make it work?
You have the same $2 (literally) crackfan from walmart in your grow cab as I do!

Wally world sells these crackfans without the AC adapters they require.. either find a 3 volt adapter or use batteries...

They die so quickly... I have to buy a new fan once a week, this week twice... and I only run them 12 hrs a day

I can't find any other fans that are small enough to fit in my space though, so I have to keep using them

What you could do for ventilation is to drill some holes (or cut out a 4-5 inch in diameter hole directly behind your fan. The fan will then draw cool air from the outside from directly behind it into your cab. Then have a small opening or some holes drilled at the top of your cab so the hot air rising can flow out.

good luck and keep us updated

peace