sunny747
Well-Known Member
Here is what I have learned. Hopefully it helps. Managing heat in a small cab is tough. If you are not pulling enough air from the top adding a small circulating fan just moves the hot air all around rather than letting the hot air flow to the top of cab.
Another benefit of the air purifier is that it doesn't allow for light leaks like a regular fan. During flower this will be of importance.
The best way I have found to extract air from a small cab is by using a $40 air purifier from Walmart. It also filters some of the stink. These things draw a lot of cfms and are stronger than regular fans. I found computer fans didn't do crap for my heat issues. The air purifier should be placed at the very top of your cab. Cut a hole in the top and tape it in really well with duct tape. Then mess with your intake holes to find the right amount of negative pressure.
![2014-04-11 14.25.57.jpg](/data/attachments/2435/2435792-3987ca167a74e597ebba09b002ab8806.jpg)
I have a similar thermometer. I feel like it's most accurate if I put it in the shade. The direct light seems to mess it up.
Another benefit of the air purifier is that it doesn't allow for light leaks like a regular fan. During flower this will be of importance.
The best way I have found to extract air from a small cab is by using a $40 air purifier from Walmart. It also filters some of the stink. These things draw a lot of cfms and are stronger than regular fans. I found computer fans didn't do crap for my heat issues. The air purifier should be placed at the very top of your cab. Cut a hole in the top and tape it in really well with duct tape. Then mess with your intake holes to find the right amount of negative pressure.
![2014-04-11 14.25.57.jpg](/data/attachments/2435/2435792-3987ca167a74e597ebba09b002ab8806.jpg)
I have a similar thermometer. I feel like it's most accurate if I put it in the shade. The direct light seems to mess it up.