The output switch may require attention throughout the day. Before going to bed, the operator should switch the output to its minimum setting. This keeps as much heat in the bricks as possible. Enough will leak out into the room to make it warm in the morning. Only in exceptionally cold circumstances will the operator require output overnight. The operator may wish to slowly increase the output switch during the day to try to maintain the temperature in the house. Increasing the output will allow the heat to convect out of the heater. If the house is empty during the day, the output should be left at a minimum all day and then switched up when returning to the house in order to let more heat escape.