The most important factors for choosing air conditioning
What decisions you need to make to purchase an air conditioner that suits your needs. You should know that even if you want to buy an air conditioner just to cool the house, you will definitely buy an air conditioner with a heat pump , a system that cools in the summer but reverses the cycle of operation and will also produce heat for the winter. In addition, this machine is also used to remove humidity from the room, which is why it is defined as an air conditioner not the same as an air conditioner.
Split air conditioner
Let's start with the first option: as you know, stationary air conditioners They consist of an outdoor unit and indoor stations, such as split, window or floor ceiling. It is usually a rule of thumb that each room has its own section; We often hear from our customers: “I want to install one splitter in the corridor to air condition all the rooms.” In fact, this is a mistake because in this way you will have a very air-conditioned corridor, perhaps with extreme temperature changes, while the other rooms will only be partially cooled, causing their high consumption.
So, if you only need air conditioning in one room, a single split will be sufficient if you need air conditioning in two rooms, you will need a double split known as a 2 x 1 split, a three room 3 x 1 multi split split and so on. .
Obviously, as the number of divisions increases, the power of the external machine will increase; In fact, a double-split motor is more powerful than a single-split motor.
The necessary power in air conditioners
Power is measured in kilowatts , but British thermal units are often used for air conditioners, which is an English measurement.
If you want to know exactly what power you need, trust an air conditioning technician, as it depends on several factors: the size of the rooms, the height of the ceiling, and the insulation of the walls. As a rule of thumb, below is a table showing the relationship between room size and BTU needed for cooling.
| Up to 12 m2 | 7000 units |
| From 12 to 20 m2 | 9000 units |
| From 21 to 30 m2 | 12000 thermal units |
| From 31 to 40 m2 | 15,000 units |
Energy efficiency of air conditioning units
Another essential factor in choosing the right air conditioner is its efficiency , allowing you to save money on your bills. It is possible to achieve these efficiencies thanks to a device called Inverter that allows the powers to be adjusted. Specifically, efficiency refers to the air conditioning consumption and is mainly linked to two factors, ROA and ROA :
ROA is the ratio between the energy produced by the machine to cool rooms and the energy absorbed by the electrical system. The higher this value, the greater the savings on the bill. To give an example, suppose an efficient device has an energy efficiency rating above 6.
The consideration for heating is called conditional , so if you have to use the air conditioner to heat rooms in winter, check this value as well. Suppose a good air conditioner to be effective must have a COP index greater than 4.2/4.5.
Air flow for air conditioners
On the other hand, a little studied factor is the air flow treatment machine . This value is expressed in cubic meters per hour and allows you to calculate how often the air is filtered and dehumidified. This value is essential both in polluted environments such as cities and in highly humid environments, as humidity is a factor that greatly affects heat perception. Obviously, the more air, the greater the comfort.
Another option is the noise level of both the outdoor and indoor device, measured in decibels.
In general, today's splits produce sound energy between 54 and 63 dB, while outdoor appliances produce between 60 and 65 dB, and the lower these values, the quieter the air conditioner.
In addition, we must find the value of the dehumidification function to minimize the air humidity .
Also consider an air conditioner with built-in Wi-Fi for remote management, which can be controlled using smartphones and tablets.
Another factor is the warranty: a good buy is also measured by the product's ability to last over time, and the longer the warranty on the device, the better. Most major manufacturers offer the same types of warranties.
Air conditioning price
Obviously, the final choice, as with any product, depends on the price. The price of the air conditioner varies according to all the information we have just listed, but also according to the brand. Obviously, the better brands cost a little more, but they also offer higher quality and reliability.
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