The reason some new air conditioners have a minimum temperature setting of around 64 degrees Fahrenheit (18 degrees Celsius) is primarily due to energy efficiency and design considerations.
Energy Efficiency: Air conditioners are designed to remove heat from indoor spaces and cool them down to a comfortable temperature. The lower the temperature setting, the more energy the air conditioner needs to use to maintain that level of cooling. As the temperature decreases, the cooling system has to work harder and consume more electricity. To promote energy-efficient operation, manufacturers often set a minimum temperature limit to prevent excessive energy consumption.
Design Limitations: The design and components of the air conditioner can influence its ability to achieve lower temperatures. Some air conditioners might not be optimized to handle extremely low temperatures, as they may face issues like freezing up or reduced efficiency. By limiting the minimum temperature setting, manufacturers ensure that the unit operates optimally within its intended parameters.
Human Comfort: Another factor to consider is human comfort. While some people might prefer very cool indoor temperatures, excessively low temperatures can be uncomfortable and even lead to health issues like cold-related illnesses if not managed properly. A minimum temperature setting around 64 degrees Fahrenheit is generally considered comfortable for most people while also preventing excessive cooling that might lead to discomfort.
If you find that a minimum temperature of 64 degrees Fahrenheit is not cool enough for your preferences, you could consider using other strategies to enhance comfort without overworking the air conditioner:
Use fans: Running fans in combination with the air conditioner can help distribute cool air more effectively and create a perception of lower temperatures.
Ensure proper insulation: Make sure your home is well-insulated to keep the cool air from escaping and the hot air from entering, allowing the air conditioner to work more efficiently.
Use curtains or blinds: Keep curtains or blinds closed during the hottest parts of the day to block out sunlight and reduce the heat entering your home.
Consider a different cooling system: If you prefer colder indoor temperatures, you might explore other cooling options, such as portable air conditioners or central air conditioning systems that are designed to handle lower temperature settings.
Always consider energy efficiency and your comfort needs when using air conditioning systems to strike the right balance between staying cool and avoiding excessive energy consumption.