How heater manufacturers can improve the effectiveness of heaters.

Ever notice how your electricity bill tends to increase during the winter?  One of the major uses of electricity in the winter is for portable electric heaters.  In a typical situation, people will place the heater in a cold room that usually has a window and turn the heater on.  If the room is still cold, they will turn the heater higher.  What most people do not know is that if the heater is far away from the window, much of the heat from the heater can end up at the ceiling while the floor remains cold.  The reasons for this, is that cold air from the window falls while hot air from the heater rises creating a circulation pattern.  See the picture below:

As you can see, when the heater is placed away from the window, the ceiling is hot while the floor is cold.  To solve this problem, the heater should be place near the window.  The warm air from the heater will rise, be slightly cooled by the window, move across the ceiling and then fall down the opposite wall and heat the floor.  This sets up a natural circulation that evenly heats the room.  Architects know this and if you look at the placement of floor vents in a house or a hotel room you will notice that the heater is always placed below the window.  See picture below:

As the picture shows, the cold air near the window is heated before it enters the room and the air on the floor comes from the ceiling  rather than from the window.  Heater manufactures should use the Behavioral Science concept of Anchoring to recommend to customers where to place the heater for maximum comfort.  When people place a heater in the room, their first choice will be near the window based because of the labeling on the heater.  Today people are given no recommendations and the probability that the heater will end up near the window is low.

By anchoring people to the concept of placing heaters near windows, heater manufacturers can help customers heat a room evenly and reduce electricity use. This will ultimately reduce the overall cost of ownership of the heater as well as increase the perception of effectiveness of the heater.

Warning:  There should always be adequate space between a heater and any loose cloth like drapes.  Also not that this concept is not as applicable to heaters with fans.

Special thanks to Leura Greunke for the trigger for this concept.