Chronical FTSs Heating and Chilling Package - 1/2 bblSet a temperature on the controller, provide a source of chill water for your system, tuck the heater pad underneath the neoprene jacket, plug into the wall and walk away. This system will hold your set temp both when it gets cold and when it gets warm! This kit is for owners of the Ss standard edition Chronical Half Barrel fermenter that are looking for a two way switchable controller with both heating and chilling functionality. Kit contents