Originally Posted by GreenMtBrewer
What a great looking build. Nicely done. What is the ambient temperature of your brewing space, and how often does your AC unit cycle on to maintain the 68 F in the top chamber?
It's been pretty warm here in Northern California lately so my brew space has probably been getting up to low-mid 90's.
The AC unit was kicking on frequently when i first plugged it in but once I got some kegs and carboys in there to build up the thermal mass it's been only turning on maybe for 1-2 minutes every 20 minutes.
The top is cooled by two 80mm fans that cycle cold air from the bottom and return hot air from the top. Right now they have been running more than I would like to maintain fermenting temps up top but I think that is mostly due to the low watt cell phone charger i'm using to power the fans. Once I find a better power supply I should be able to get more speed and better air movement with them, if it's still low I will upgrade them to 120mm fans.
I have only had it finished for about a week and haven't had much time to really push it to see what the max performance can be. But where I have it set at now is right around where i see myself keeping it most of the time and even with the hot weather it's holding strong!