Air coolers are the cost-effective alternatives for the power-guzzling air conditioners. They function quite well in dry areas and are good cooling alternatives to beat the heat while keeping your bills low. Want another reason to invest in them? They are eco-friendly too!
Read on to find out how to choose the best one for your home!
Type of Air Cooler: Confused between a desert and personal air cooler? Room coolers are more effective for mid-sized rooms, have a water tank capacity of 20-30 liters and are also priced lower. Desert coolers, on the other hand are suitable for small to mid-sized rooms, have a water tank capacity of 30-60 liters and are a little more expensive. They are more effective, but also require more power, space and water. There is also a third, lesser known type known as window air cooler. As the name suggests, these can be placed inside the window vent and have cooling pads on 3 sides.
Cooling-pad types: Cooling pad is the equipment that you see on the sides of the body. When air passes through it, the pads cool down the air. There are two types of cooling pads available in the market: Honeycomb and Aspen Wood Wool. Aspen wood wool pads are made of synthetic fiber, which looks like grass. Go for them if you are looking for something economical. Honeycomb pads are made of cellulose-like material and are more expensive. However, if you are willing to shell out some extra bucks, they are a better choice since they need less maintenance and are more durable and efficient. Additionally, the cooling pads should ideally be at least 90 mm thick.
Room size: It’s important to make sure that the air cooler you are planning to buy is sufficient for your room size. As mentioned earlier, desert air coolers are better for larger rooms and personal /window coolers are better for smaller spaces. Apart from this, make sure to check the product description of the unit. Look for the ‘Area covered’ /‘Cooling area’ specification in the model description. This should be equal to or more than your room size. Another factor that you can look at is the Air delivery or Air displacement (CFM). This denotes the measurement of the velocity at which air flows into or out of a space. The easy formula for calculating this is:
Room size in sq ft (X) ceiling height / 2 = CFM of airflow
Example: If the room is 500 sq ft and the ceiling height is 8 ft, then (500 X 8)/ 2 = 2000 CFM
This means that you will need a cooler with a minimum air flow of 2000 CFM
Additional features: Do look for additional features before making a purchase. The best add-on features are remote controls, variable speed control knobs for altering the fan speed and water level indicators to know whether the water tank is filled or not. Some high-end air coolers also come with fancy features such as an ice-cube tray which adds cool water to the water tank once the ice melts or an empty tank alarm which goes off once the water level is below the required level.
We hope we have made your decision easier. Do make sure to invest in branded coolers as they come with a warranty and additional features which the local ones might not offer.