Many families try to save electricity by avoiding aircons and using electric fans instead. That sounds practical at first. But sometimes the real problem is not the appliance. It is how we use it.
A normal electric fan usually uses around 50 to 90 watts of electricity.
A 1-horsepower aircon usually uses around 700 to 1,200 watts while cooling a room.
That means:
• One 1 HP aircon can consume as much electricity as around 10 to 20 electric fans.
That sounds expensive at first. But comfort matters too.
An electric fan only pushes air around. If the room itself is hot, the fan is still blowing warm air. That is why some people sleep with two or three fans running all night and still wake up sweaty like toasted pandesal.
An aircon removes heat from the room itself. Once the room becomes cool, it does not always continue running at full power.
The main cooling part of an aircon is called the compressor. This is the part that consumes most of the electricity.
Here is how it works:
• When the room is hot, the compressor turns on and the aircon starts cooling the room.
• Once the room reaches the target temperature, the system changes behavior depending on the type of aircon.
For non-inverter aircons:
• the compressor usually stops once the room is cool
• then turns on again when the room becomes warm
For inverter aircons:
• the compressor usually stays running at lower speed instead of fully stopping
• this helps maintain the temperature using less electricity
That is why inverter aircons are usually more efficient during long use.
This is also why constantly turning the aircon off and on is not always the best way to save electricity.
When an aircon starts again, it usually needs stronger power to cool the room back down.
Here is a simple guide:
• Leaving the room for 5 to 20 minutes
Usually more practical to keep the aircon on.
• Leaving for around 30 minutes
Still usually okay to leave it on, especially inverter models.
• Leaving for 1 hour or more
Turning it off usually saves more electricity.
The room itself also affects the electric bill more than many people realize.
These conditions can make the aircon work almost nonstop:
• open windows
• thin curtains
• sunlight hitting the walls
• gaps under doors
• people constantly entering and leaving
Meanwhile, a sealed room with curtains and less heat entering can cool much faster and consume less electricity even during longer use.
Sometimes people blame the aircon when the real enemy is the afternoon sun quietly cooking the whole room from outside.
Saving electricity is not always about suffering in the heat. Sometimes it is simply about using appliances smarter.
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