A way for businesses and homes to save on their fuel bills is to install a building energy management controller. A familiar story at work is an employee feels cold and turns up the heating thermostat. Instead of making a small adjustment, they turn it on full and when they get too hot, they open the window — thus wasting fuel. To counter this, the HeatingSave controller gets the temperature right so people don't feel too hot or cold. Secondly, if employees feel too cold, they can hit a button to increase the room temperature. The heating will be turned up for a while, but will then automatically turn back, keeping the employee at the right comfort temperature — and saving money.