Room cooler buying guide 2025: 7 important things to keep in mind
For effective cooling, match room cooler capacity to room size and ensure proper ventilation by placing it near an open window or door. Poor ventilation increases humidity and reduces cooling. Select a cooler appropriate for both climate and room dimensions. Eight key factors should guide the purchase decision.
Consider the room size Air cooler capacity is rated by cubic feet per minute (CFM), denoting air circulation volume. Determine the needed CFM by calculating the room's cubic volume (length x width x height) and halving it. This yields the air exchange time, crucial for assessing the cooler's suitability for the room. Larger spaces necessitate greater CFM.
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Select the water tank capacity The water tank size, measured in liters, determines how long the cooler can operate before it needs a refill. A larger tank offers longer, uninterrupted cooling. For small rooms, a tank capacity of 15 to 30 liters may be sufficient. Medium-sized rooms typically require a 30 to 60-liter tank, while large spaces benefit from tanks that are 60 liters or larger. Some models include an auto-fill function for continuous operation.
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Choose the cooler type There are three main types of room coolers: Personal coolers: These are compact units suitable for small spaces or individual use. They have smaller water tanks and lower power consumption. Tower coolers: These have a slim design, making them suitable for medium-sized rooms where floor space is a consideration. They provide targeted airflow. Desert coolers: These are larger units designed for big rooms and dry climates. They have large water tanks and powerful fans for maximum cooling.
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Check the cooling pads Cooling pads are essential for the cooling process. There are two common types: Honeycomb pads: Made of cellulose material, these pads have a high water retention capacity and are durable, typically lasting for two to three years. They are known for efficient cooling. Wood wool pads (Aspen pads): These are made of wood shavings and are less expensive. They require more maintenance and generally need to be replaced annually.
Review power consumption An air cooler's power consumption is rated in watts. Coolers consume less electricity than air conditioners. To manage energy use, check the power rating of the model. For areas with frequent power cuts, selecting a cooler that is compatible with an inverter is a practical choice. Models with brushless direct current (BLDC) motors are also available, which consume less power.
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Consider build and portability The body of the cooler is typically made from plastic or metal. A durable build quality ensures a longer lifespan. For convenience, look for models equipped with castor wheels, which allow the cooler to be moved easily between different rooms.
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Evaluate additional features Modern coolers come with features that add convenience. A remote control allows you to adjust settings without getting up. An ice chamber can be filled with ice to lower the water temperature for faster cooling. Timers can be set to turn the cooler off automatically, and some models feature dust filters to improve air quality.
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