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Split air conditioner - silent, efficient freshness at any time

An air conditioner is the ultimate gear for many people when the thermometer is marking tropical temperatures. Modern air-conditioning split units are an excellent choice for cooling down quickly the rooms of your house. A split air-conditioning unit is all about why it is worth buying a split air conditioner s summarised in the following information. But which one to go for? A wall mounted air conditioning unit?<(p>

Take a look at our range of split air conditioners, designed to ensure cool temperatures even in extreme heat. Manufactured using quality materials with high durability and a focus on energy efficiency, Klarstein split air conditioners are a smart investment to get you through the summer without sacrificing comfort in all areas of your home. Read on for more useful information before you buy, and once you've made up your mind, visit our product gallery. Don't miss out on our offers and buy conveniently online, with no shipping costs.

What is a split air conditioner?

A split is nothing more than the indoor unit of the most common fixed-system domestic air conditioners, where the pump that drives the air conditioner is usually located outside the house. In contrast,the split unit circulates the air - more or less cooled according to the predefined settings - inside. When an air conditioner has more than one indoor unit, it is called a multi-split air conditioner.If our air conditioning needs are not limited to one room, you may need to purchase a multi-split air conditioner.

Mono or multi-split air conditioner?

Klarstein Windwaker Eco split air conditioner

Are you planning to purchase an air conditioner that will function as a temperature control system for your sleeping room? Do you need to refresh more than one room? In these cases, your choice will be twofold.

1. You can purchase a single split air conditioner and position the indoor unit in the corridor where the daytime and night-time rooms are located. If you opt for this choice, it is better to choose an "on-off" air conditioner. Although these devices consume more electricity, they guarantee a constant flow of air without slowing down once the temperature in the corridor reaches the set temperature; in this way, the conditioned air maintains the necessary thrust to reach all the rooms. Obviously, in this case, it is essential to close the door of rooms that are not used or not to be conditioned, such as bathrooms or storerooms, to avoid dispersion of the air produced.

2. You can install a split for each room to be conditioned. In this case, an air conditioner with inverter technology is ideal. For this system to work correctly, it is necessary to know in advance both the power of the external motor and that of the individual internal splits. But beware that when you use the splits simultaneously, there may be problems with power reduction.

Primary criteria for choosing the best split air conditioner

About identifying the parameters that characterise the full functionality of air conditioners, it is necessary to know what their "right" power is: how much power they must have to "cover" a given room (or several rooms), to be more precise. You should, of course, bear in mind your actual needs and conditions, considering if you have one or more rooms, the purchase costs and those relative to the operation of the air conditioner, etc.

Split air conditioners: the main technologies

Air conditioners currently on the market fall into two categories according to the way they work:

  • air conditioners based on inverter technology

  • in air conditioners based on so-called on-off technology

The inverter technology is adopted in different fields and sectors, including quality air conditioning. An inverter is an electronic device that produces alternating current electrical energy from a direct current source. This technology allows you to automatically and continuously adjust the power and operating speed of the air conditioner. Thanks to the inverter technology, you can manage the temperature in the same way as thermostats and chrono-thermostats. In other words, an air conditioner based on inverter technology cools the room quickly by making full use of its power. However, once the set temperature is reached, the inverter slows down and keeps it running at a minimum to maintain the set temperature.

In this way, there is no excess energy consumption due to the unit stopping and starting p again. In addition, this idling produces approximately 30% less energy consumption in eight hours. Therefore, air conditioners based on inverter technology are more expensive at the time of purchase than those with on-off technology, ensuring a considerable saving if you use them for at least eight hours a day.

Air conditioners based on this on-off technology have higher energy consumption. When the compressor is switched on, it immediately works at its maximum power and operates at maximum capacity regardless of the room temperature. Once the programmed temperature has been reached, the on-off air conditioner switches off and then restarts at full power when the room temperature changes from the pre-set temperature. Due to their high quality, the latest generation of air conditioners with an energy efficiency class A++ (the one with the best efficiency) and those with class A++ have low electricity consumption.

When these air conditioners are connected to an existing domestic electrical system, they often do not need an increase in power capacity. The efficiency class factor is a crucial element. Therefore, before buying this appliance, it is essential to know which class it belongs to, as this gives us an idea of the impact it will have on our electricity bill. Energy classes below A+ are not considered to be particularly efficient. Their consumption is high, which may mean that you may need to increase the kilowatt (kW) power in our contract with our electricity supplier.

In this regard, it is sufficient to consider that, with the same performance, a class A air conditioner consumes approximately 890 while one in class A++ consumes only a third of that or 321 kWh. This is why the energy class of any household appliance - including an air conditioner - (that you are thinking of buying) is essential. It goes without saying that since the energy consumption of an appliance with a high/very high energy class is lower, it will allow us to save much more than the higher purchase cost in the long term.

The right size for a split air conditioner

The BTU (British Thermal Unit) is a unit of measurement of energy. The heat output of an air conditioner is measured in BTU/h, i.e. as the ratio between the amount of heat exchanged and time (one hour). When choosing - or rather, when sizing - an air conditioner, it is also necessary to think in terms of BTU/h. BTU is closely related to the cubic metres of the environment where the air conditioner is to be used: the air conditioner must be sized according to the volumes of the environment in which it is to operate. To calculate the BTU/h of the air conditioner, we can follow the following two steps:

Room size (in square meters) BTUs
9 to 16 8000
14 to 23 9000
23 to 28 10000
28 to 33 12000
33 to 37 1400
37 to 42 18000
42 to 60 25000
  • calculate the volume of the room to be conditioned. To do this - assuming we are in a room with the shape of a rectangular parallelepiped - we need only multiply its width by its length and height. For example, if we have a room that measures 5 metres in width, 4 metres in length and 3 metres in height, the calculation will be: 5 x 4 x 3 = 60

  • Multiply the result by 100. In our case we would get 6000 (60 x 100)

The result thus obtained represents the power of the air conditioner that you need to condition your environment. In your case, 600 BTU/h. Without having to resort to the (simple) calculations seen above, as a rule of thumb, you can rely on the following estimates:

Remember, however, that these estimates apply if there is only one room to refresh; if the room to be refreshed. However, if it is hot, as could be the case in an attic, you may need some extra BTUs to achieve the desired cooling effect. It is essential to use an inverter air conditioner, consult a specialised technician in these cases. Furthermore, if you want to make more precise calculations than the approximate estimates we have seen, you should consider other variables, one of which is the heat dispersion of the house. For example, in a house that has not been built recently and with poorly insulated windows, the cold air supplied by the air conditioner will undoubtedly tend to dissipate very quickly, without generating absolute comfort, but heavily impacting on the electricity bill.

The noise level

If you want to buy an air conditioner to cool your bedroom on summer nights, the appliance you choose must be silent because otherwise, it could compromise your rest. It is usually the external motor that makes the most noise, so it is advisable to avoid placing it near the bedroom when installing the air conditioner. Since the indoor unit can also be noisy, you should pay attention to its decibel level when you buy it, assuming that the best noise level (for night use) should be between 20 and 30 dB.

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