Setting the air conditioner at a low temperature, such as 68 degrees Fahrenheit, may feel more comfortable and cool, especially during hot weather. However, there are several reasons why it's generally not recommended to set the AC too low, and why setting it above 78 degrees is advised for energy efficiency and environmental reasons:
Energy Consumption: The lower you set the thermostat, the harder your air conditioner has to work to maintain that temperature. The cooling system will consume more energy and run for longer periods, resulting in higher electricity bills. During the summer months when AC usage is high, this can significantly increase your energy costs.
Environmental Impact: Higher energy consumption doesn't just impact your wallet; it also contributes to higher greenhouse gas emissions. The excessive use of air conditioners can lead to increased carbon dioxide emissions, which further contribute to climate change and global warming.
Air Conditioner Strain: Constantly running an air conditioner at very low temperatures can put extra strain on the system, potentially leading to more frequent breakdowns or a reduced lifespan of the unit. Regular maintenance and replacements can be costly.
Temperature Extremes: Setting the AC to very low temperatures can create extreme temperature differences between the inside and outside of your home. This could result in uncomfortable transitions when you go in and out, making it harder for your body to adjust to the temperature changes.
Humidity Control: Air conditioners not only cool the air but also help dehumidify it. Running the AC at excessively low temperatures can reduce its ability to dehumidify effectively, leading to a cold and clammy indoor environment.
While setting the thermostat at 78 degrees may not be as cool as 68 degrees, it strikes a balance between staying comfortable and being mindful of energy usage and environmental impact. If 78 degrees still feels too warm for comfortable sleep, consider using other methods to cool down your sleeping area, such as using a fan, keeping blinds or curtains closed during the hottest parts of the day, and using lightweight, breathable bedding.
Additionally, consider adjusting your thermostat settings when you're not at home or during the night when outdoor temperatures tend to be cooler. Many modern thermostats also allow for programmable schedules, enabling you to optimize your AC usage and maintain comfort without excessive energy consumption.