In recent years, air conditioner manufacturers have made significant improvements in terms of energy efficiency, performance, and features. However, one unintended consequence of these advancements is that some new AC units may be perceived as noisier compared to older models. There are a few reasons why this could be the case:
High Fan Speeds for Improved Efficiency: Newer AC units are designed to be more energy-efficient. To achieve this, they often use variable-speed or multi-speed fans. While these fans can improve efficiency and provide better cooling, they may also operate at higher speeds, which can result in more noise generation.
Lightweight Materials: To reduce the overall weight and improve portability, modern AC units are constructed using lightweight materials. These materials might not provide as much sound insulation as the heavier components found in older units, leading to more noticeable noise levels.
Compact Design: Newer AC units often come in sleek and compact designs, which may limit the space available for sound-dampening materials. As a result, some of the noise generated by the internal components, such as compressors and fans, may be more audible.
Higher Cooling Capacities: Many modern AC units have higher cooling capacities than older models. The increased cooling power often requires larger compressors and fans, which can produce more noise.
Less Background Noise: As societies have become more advanced and urbanized, background noise levels have generally increased. This makes the noise from an AC unit more noticeable, even if the absolute noise level of the unit has not increased significantly.
Subjective Perception: People's perception of noise can vary widely. Factors such as individual sensitivity to sound, room acoustics, and personal preferences can influence how a person perceives the noise from an AC unit.
It's important to note that not all new AC units are noisier than older ones. Some manufacturers prioritize noise reduction and incorporate advanced sound-dampening technologies to ensure quiet operation. When shopping for a new AC unit, you can look for models with lower decibel (dB) ratings or ones specifically marketed as "quiet" units.
Additionally, regular maintenance, proper installation, and selecting an appropriately sized unit for your space can also contribute to a quieter and more comfortable cooling experience. If you're concerned about the noise level of a new AC unit, you can check customer reviews and consider visiting a showroom to hear the unit in operation before making a purchase.