Key factors in choosing an air conditioner
What decisions should be made when buying an air conditioner? Whichever suits your needs. You should know that even if you only want to buy an air conditioner to cool your home, you will definitely buy a device An air conditioner with a heat pump is a system that cools in the summer but, when the cycle is reversed, also produces heat for the winter. Additionally, this machine is also used to dehumidify a room, which is why it is defined as... air conditioner It's not like an air conditioner.
Split air conditioner
Let's start with the first option: as you know, Fixed air conditioners consist of an outdoor unit and indoor units, such as split, window, or ceiling units. A general rule is that each room should have its own dedicated unit; we often hear from our customers, "I want to install one split unit in the hallway to cool all the rooms." This is actually a mistake because this way you'll have a heavily conditioned hallway, potentially with extreme temperature fluctuations, while the other rooms will only be partially cooled, resulting in higher energy consumption.
So, if you need air conditioning in just one room, a single split system will be sufficient. If you need air conditioning in two rooms, you will need a double split system known as a 2x1, and for three rooms, a 3x1 multi-split system, and so on.
It is clear that the more splits there are, the more powerful the external machine will be; in fact, a double-split motor is more powerful than a single-split motor.
The required power in air conditioners
power It is measured in kilowatts , but British thermal units It is often used for air conditioners, and is a scale in English.
If you want to know the exact power you need, consult an air conditioning technician, as it depends on several factors: room size, ceiling height, and wall insulation. Generally, a table below illustrates the relationship between room size and the required BTU for cooling.
| Up to 12 m² | 7000 units |
| From 12 to 20 m2 | 9000 units |
| From 21 to 30 m2 | 12000 BTU |
| From 31 to 40 m2 | 15,000 units |
Energy efficiency of air conditioning units
Another key factor in choosing the right air conditioner is Its efficiency allows you to save money on your bills. This efficiency is achieved thanks to a device called an inverter that allows for power adjustment. Specifically, efficiency refers to the air conditioning's power consumption and is primarily related to two factors. ROA and policeman :
ROA It is the ratio between the energy produced by the machine to cool the rooms and the energy absorbed by the electrical system. The higher this value, the greater the savings on the bill. To give an example, let's assume that an efficient machine has an energy efficiency rating higher than 6.
Consideration is given to heating This is a condition , so if you need to use air conditioning to heat rooms in winter, check this value as well. Let's assume that a good air conditioner, to be effective, should have a COP (Cost Per Oxygenation) greater than 4.2/4.5.
Airflow for air conditioners
On the other hand, the factor that has been little studied is An airflow 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 in both polluted environments like cities and in highly humid environments, as humidity significantly affects heat perception. Clearly, the more air there is, the more comfortable it is.
Another option is Noise level For both the external and internal device, measured in decibels.
In general, today's split systems produce sound power ranging between 54 and 63 decibels, while outdoor units produce between 60 and 65 decibels. The lower these values, the quieter the air conditioner.
In addition, we must find the value of a function Dehumidification to reduce 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 purchase is also measured by a product's ability to last over time, and the longer the warranty, the better. Most major manufacturers offer similar types of warranties.