The best unit to control any reactor cannot be accurately determined through a calculation (but a calculation is a good indicator). A tight budget can encourage compromises and breed disappointments. The best unit is determined by the process requirements. Huber’s case studies show empirical performance data so that the user can properly compare cost, process requirements and performance. Here we see Huber’s Petite Fleur controlling the process temperature in an Asahi 10-litre vacuum insulated reactor between -20°C and 120°C. The process mass is simulated with M40.165/220.10 with DW-Therm as the heat transfer fluid (HTF).