A method for displaying data is disclosed. In order to devise an auxiliary heater with has higher efficiency than known auxiliary heaters of the same size, both the heat transfer medium inlet and heat transfer medium outlet located on the first end area of the heat exchanger. The output shaft and the motor shaft have respective end surfaces opposing each other in the axial direction with a spacing therebetween under a condition that the ball is disposed between the output shaft and the motor shaft. An electrode is respectively provided inside the immersion tubes, whereby said electrode is connected to a voltage source in order to produce the required depth of gas so that said immersion tubes can be filled therewith upon contact with the electrolyte. The method comprises creating a hole in the earth, preparing the hole to influence the downward growth of the root system of a tree planted therein, planting a tree in a rooting medium in the hole, growing commercially valuable crops on the tree by providing water and nutrients to the tree, and harvesting commercially valuable crops from the tree. Each mini-release may include a small subset of the component parts to be focused on, allowing greater flexibility, without greatly increasing code release efforts.