Hot-case or Nut-case
Here is the problem statements - Employees want something in office to heat food. 300 Employees approx. (not all being food from home) Existing microwave becomes faulty. Probable cause is people keeping foil and steel utensils. Solution Install a hot case. Benefits - Cheap Less fault prone - People can use foil/steel utensils. More space Less electricity consumption. A perfect solution, only problem is that the Hot-case is just not used. This is what happens when the focus is on the problem and not on meeting the objective.