I am a good DIYer, so I know I have the skills to solder a circuit together, but I can't design anything! Hoping a kind soul here can shed some light. I have a space heater that is being used to heat a very small space, and the problem is that on its lowest setting once the area comes up to temp there is still so much residual heat left in the heater that the area coasts up a few more degrees than desired. I want to design a 120v circuit that will cycle the heater on and off, effectively reducing the power output. For example, on and off every 30 seconds may be a good place to start, or on for 20 seconds and then off for 40, continuously. It has to be mechanical, or analog, meaning, it can't use any kind of logic because when the desired temperature is reached the power is removed (its hooked up to a temperature-sensing relay). Thanks!