Code for Water Heater Controller

I need a code that will work on a 8051 or Atmel 89C2051 microcontroller which will control a water heater/geyser. part of the requirements is for the user to be able to set temperature, and desired operation times or ON/OFF times; which implies that the system will have some kind of display and keypad. there should also be a fixed max and min tempearture setting of the heater which can be entered by the user. desired operation times of geyser should also be accomodated. if anybody can help me in anyway be it with information concerning this kind of project, please email me at [email protected]

thanks!