LS Aircon Servicing Singapore

Aircon Energy-Saving

7 Myths About Aircon Energy-Saving

Aircon energy-saving is a crucial aspect of using air conditioning in Singapore. Given the hot and humid climate, air conditioning is a vital part of life in Singapore. With rising energy costs and environmental concerns, many people are looking for ways to save energy while keeping their homes cool and comfortable. 

However, several myths about aircon energy-saving can lead to ineffective practices and unnecessary costs. This article will debunk seven common myths about air conditioner energy-saving in Singapore, providing clear and accurate information to help you make better decisions for your home and wallet.

Common Myths on Aircon Energy-Saving

Aircons are indispensable for maintaining indoor comfort in Singapore, where temperatures often soar and humidity remains high year-round. However, extensive aircon use also means high electricity bills and a significant environmental footprint. As a result, many people seek ways to reduce their energy consumption. 

Unfortunately, not all advice about aircon energy-saving Singapore is accurate. To help you navigate the misinformation, we will explore and debunk seven prevalent myths about aircon energy-saving.

Myth 1: Setting the Thermostat to the Lowest Temperature Cools the Room Faster

One of the most common myths about AC energy-saving is that setting the thermostat to the lowest temperature will quickly cool the room. In reality, the aircon constantly cools, regardless of the set temperature. Setting the thermostat to an extremely low temperature will cool your room faster and cause the aircon to run longer, consuming more energy than necessary. 

To efficiently cool your room, set the thermostat to a comfortable temperature, such as 24-25°C. This setting provides a balance between comfort and energy efficiency.

Myth 2: Turning the Aircon Off When Not in Use Saves More Energy

Many believe that turning the aircon off whenever they leave the room and turning it back on when they return saves energy. While this can reduce energy consumption to some extent, it often leads to increased wear and tear on the unit due to the frequent cycling on and off.

A better approach is to use a programmable thermostat or timer to adjust the temperature when you are not in the room. For example, setting the temperature a few degrees higher while you are away and lowering it when you return can save energy without putting too much strain on the system.

Aircon Energy-Saving Singapore

Myth 3: Using a Ceiling Fan While the Aircon Is On Is a Waste of Energy

Another myth about aircon energy-saving is that using a ceiling fan and the aircon is wasteful. Ceiling fans can complement air conditioning by circulating the cool air more effectively throughout the room. 

This can make you feel cooler and allow you to set the thermostat a few degrees higher, thereby saving energy. Fans use significantly less electricity than aircon. Using them together can enhance the cooling effect and reduce overall energy consumption.

Myth 4: Bigger Air Conditioners Are More Efficient

A common misconception is that larger aircons are more efficient because they can quickly cool a room. However, an oversized aircon will cycle on and off more frequently, leading to inefficiency and increased wear on the system. This can also result in poor humidity control, making the room feel less comfortable. Choosing an air conditioner appropriately sized for the room is essential. 

A properly sized unit will operate more efficiently, provide better humidity control, and maintain a consistent temperature. If you need clarification on the appropriate sizing of the aircon, In that case, professionals like LS Aircon Servicing Singapore can assist you with their services, like aircon installation, gas top-up, aircon chemical wash, etc. 

Myth 5: Leaving the Aircon on All Day at a Constant Temperature Saves Energy

Some people believe that maintaining a constant temperature all day, even when they are not home, is more energy-efficient than adjusting the thermostat. However, keeping the aircon running at the same temperature all day uses more energy than adjusting the temperature when you are away.

Using a programmable thermostat to raise the temperature when you are not home and lower it before you return is a more effective way to save energy. This approach reduces the aircon’s overall runtime without sacrificing comfort.

Myth 6: Air Conditioners Only Need Maintenance When They Break Down

Another myth is that the aircon only needs maintenance when it malfunctions. Regular maintenance is crucial for keeping your aircon running efficiently and extending its lifespan. Neglecting maintenance can lead to reduced efficiency, higher energy consumption, and more frequent breakdowns.

Simple maintenance tasks such as cleaning or replacing filters, checking and cleaning coils, and ensuring the drain lines are precise can improve your aircon’s performance. It is also advisable to have a professional technician service your unit annually to keep it in optimal condition.

Myths about Aircon Energy-Saving

Myth 7: Closing Vents in Unused Rooms Saves Energy

Many believe that closing vents in unused rooms will save energy by directing more air to the rooms that are in use. However, central aircon systems are designed to cool a specific space. Closing vents can disrupt the airflow balance, causing the system to work harder, and potentially leading to increased energy consumption and wear.

A better solution is to use zone control systems, which allow you to cool specific areas of your home more efficiently. These systems can be adjusted to direct cooling to occupied areas while minimizing energy use in unoccupied areas.


Understanding the facts about aircon energy-saving can help you make informed decisions that improve efficiency and reduce costs. By debunking these common myths, we hope to provide you with practical tips that can lead to better energy management in your home.

Frequently Asked Questions

An energy-saving feature ensures that the compressor and fan will turn off once the space has been cooled.
The dry mode on an aircon consumes significantly less energy than the cool mode because its primary function is to reduce the moisture level in the air. Humidity, or the amount of moisture in the air, makes it feel warmer to the skin.
For maximum savings, consider setting your thermostat to around 78 degrees while you are at home and around 82 degrees while sleeping.