The north window can't be better than the south window.

The problem of geomantic omen is considered a myth by many people. In fact, many geomantic principles are accumulated experience in people's daily life. The north window can't be bigger than the south window, which is a taboo of geomantic omen and a summary of life experience. Windows are used for lighting and ventilation. The north-south direction of the house, lighting by the south window. In winter, the north window is the focus of heat preservation. The bigger the window, the more difficult it is to keep warm. Therefore, the north window only plays the role of ventilation, not lighting, and heat preservation should be considered. So the north window is smaller than the south window.