It's a solved problem, but I actually prefer a simple web UI.

RS South Africa has been named Master Distributor for the Arduino UNO Q. This appointment follows RS’s recognition at the Arduino Partner Conference in Milan, where it received two prestigious awards: ...

##Summary Simple logic, fuczzy logic, and PID control program resides on the Arduino which also reports thermocouple data. The PC python GUI sends command of setpoint and on/off command to Arduino.