Running a distant window fan while the central air conditioning is on can help circulate the cooled air throughout the house and potentially make it feel cooler. However, the overall effect on the temperature inside the house will depend on various factors such as the size of the fan, the layout of the house, and the efficiency of the central air conditioning system.
When the central air conditioner is operating, it cools the air and distributes it through the ductwork to different areas of the house. However, the airflow from the central system may not always reach every corner of the house effectively, especially if there are areas with poor air circulation. In such cases, using a window fan strategically placed in an area that requires additional airflow can help distribute the cooled air more evenly.
By positioning a fan near a window, you can create a cross-ventilation effect by drawing fresh air from outside into the house and exhausting warm air. This can facilitate the movement of air and enhance the overall cooling effect. Additionally, the fan can help reduce stagnant pockets of hot air and assist in removing humidity, improving comfort levels.
It's important to note that while a window fan can enhance air circulation, it doesn't actually lower the temperature of the air like an air conditioner does. The primary cooling effect still comes from the central air conditioning system. Therefore, using a window fan alongside the central air conditioning can help improve air movement and create a more comfortable environment, but it won't directly make the house cooler beyond the cooling capabilities of the air conditioner itself.