Originally Posted by stevehaun
Unless you already own the fermenters, I would consider buying jacketed fermenters and using a glycol system to control temps. 2 barrels is starting to get too big to control fermentation temps using ambient temp unless you have a serious cold room.
Yes i already have the fermenters, they have a coil inside with glycol system, i already test it and went down to lager temps, just wanna insulated them to make the system more efficient. With the material in question will do the trick?