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The Latent Heat Factor: Understanding Energy Consumption in Your Air Conditioner - Solenco South Africa

The Latent Heat Factor: Understanding Energy Consumption in Your Air Conditioner

When it comes to energy consumption, your air conditioner is often one of the biggest culprits. But have you ever wondered why? One key factor lies in something known as latent heat. In this blog post, we'll explore the concept of latent heat, how it influences the energy consumption of your air conditioner, and what you can do to manage it.

The Concept of Latent Heat

Latent heat is a type of heat energy that's involved when a substance changes state - for example, when water evaporates into steam, or when moist air condenses into water droplets. This heat isn't visible because it doesn't raise the temperature of the substance; instead, it's "hidden" in the process of transformation.

This concept is central to understanding how air conditioners work. In humid climates, the air contains a significant amount of moisture. When your air conditioner cools the air, it not only has to lower the air temperature (sensible heat) but also remove the moisture (latent heat). The latter process consumes a significant amount of energy, which can drastically increase your electricity bill​.

The Energy Consumption of Air Conditioners

Air conditioners are notorious for consuming a lot of energy. This is particularly true in warm and humid climates where they need to work harder to cool and dehumidify the air. By removing excess moisture from the air, air conditioners create a more comfortable environment. However, the dehumidifying process of an air conditioner consumes a substantial amount of energy, sometimes accounting for up to 50% of an air conditioner energy consumption​.

The Role of Dehumidifiers

This is where a dehumidifier can be a game-changer. A dehumidifier, like the Meaco Arete 25L, efficiently removes moisture from the air, easing the burden on your air conditioner. By allowing your air conditioner to focus on cooling the air rather than dehumidifying it, you're effectively reducing the energy your cooling system needs to operate.

Consider this: an air conditioner might use around 3000 Watts of power. If 50% of that energy is dedicated to dehumidification, that's 1500 Watts. Now, if you use a dehumidifier like the Meaco Arete 25L, which consumes 365 Watts @ 30°C and 80%rh to do the same job, you're saving over 1135 Watts per hour of operation. Over a month, this could result in significant savings on your electricity bill​.

Additional Benefits of Dehumidifiers

Beyond the energy savings, using a dehumidifier offers a plethora of other benefits. These include prevention of mould and mildew, protection of home infrastructure, improving respiratory health, increasing comfort, insect control, and energy efficiency​.


Understanding the concept of latent heat and its impact on the energy consumption of your air conditioner is essential for effectively managing your home's energy use. By using a dehumidifier to handle the latent heat, you can significantly reduce the load on your air conditioner, resulting in considerable energy savings. Investing in a dehumidifier like the Meaco Arete 25L is not only a smart choice for your comfort and health, but also for your wallet.

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