DIY

Air conditioning for home – efficiency and energy saving

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In the last few years a topic has become very topical worldwide and it is discussed everywhere. We talk so often and a lot about energy saving because of the world energy crisis and the rising oil and electricity prices. In addition to saving as a purpose, more attention is paid to the quality of life, comfort and the improvement of the indoor climate at home through the new air conditioning systems. Almost every family has one Air conditioning for the home, whether in the apartment or in the villa. Today we want to examine ways to save energy when heating and cooling with an air conditioner at home.

 Air conditioning for the home – the best device with energy-efficient heating and cooling functions

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the Air conditioning for the home is not a common household device that you can just turn on and then it starts to work. The air conditioning system consists of two, three and sometimes several different, combined units – aggregates. This requires specific installation and maintenance. Hopefully you can count on knowledgeable specialists in the selection, installation and regular maintenance of your air conditioner. This is particularly important for the entire operating process of your air conditioning system. Many catalogs with price lists can help you choose. An important indicator when buying should also be expressed in BTU / h or in watts.

Air conditioning for the home – what should be understood by BTU?

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Most air conditioning systems have a capacity measured in British Thermal Units (BTU). So a BTU is the heat energy required to heat one pound of water (0.45 kg) 1 degree Fahrenheit.

What are the chances for energy efficiency?

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EER (energy efficiency rating) is equal to the ratio of the dedicated cooling capacity in W compared to the electrical energy consumption in W (watt) in cooling mode. For example, if an air conditioner uses 3520 W in cooling mode and has 920 W output, the EER = 3.826. A similar coefficient is the Coefficient of Performance (COP), known in German as the achievement number. That is again the ratio of generated cold or. Thermal output in relation to the electrical output used. If the EER or COP coefficient is larger, the air conditioning system is more energy efficient. At first glance, we have the same system, the same heat exchanger, but the energy efficiency ratio is different. Why is that so? – This is so according to the physical properties of the refrigerants, they are not constant over the entire operating temperature range due to the different heat transfer.

Energy efficiency in Europe

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In the European Union, since 01/01/2004, air conditioning systems have been divided into different classes according to their energy efficiency. Class A (high energy efficiency) to G (lowest energy efficiency) air conditioning systems are now available in stores. The average service life of air conditioning systems is within 8 to 10 years. This reduces the power consumption for high-performance models (class A), provided that they are operated all year round. An air conditioning system with energy class A for heating during the autumn-winter season is recommended due to the lower power consumption and lower heating costs.

How do you get the best air conditioning performance longer?

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It is often said that a less powerful, even cheap, model would “work well” because it has a large maximum output and a high COP. Unfortunately, this is not true. After being switched on, the air conditioning system strives to achieve its maximum performance in order to reach the temperature selected by us in a very short time and then to function in normal operation at 30-40% workload. Only under these conditions is the air conditioning system quiet and efficient. Then you can easily heat your room and enjoy the comfort of the ambience. If you compromise and your air conditioner works with low air flow, you run the risk that it will soon fail.

What to consider when buying

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The first thing you have to consider before buying a device is the energy class displayed, which determines the level of energy efficiency. In the case of cooling systems, this is the highest grade A + +, which indicates the most cost-effective level at which the technology has developed. In the European Union, class A + for electrical devices shows that these have 25% higher fuel efficiency than class A devices and A + + devices are each 50% more efficient. Several classes are provided for household technology, which uses more consumables, such as washing machines and dishwashers, for energy saving, washing, drying, etc. So the class AA air conditioner is the cheapest device for you! The first letter A indicates the energy consumption in cooling, the second – in heating.

Research first, then buy

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If you are already determined to buy new high-energy home appliances, then do a really good research before you go to the store. The likelihood of acquiring a new electrical appliance that will currently increase your electricity bill is not small. In principle, almost all major manufacturers try to bring class A products onto the market. The reasons for this are both ecological and economic, as customers are becoming more and more demanding. Class A + or A + + devices are still not in great demand, even though they are more efficient. The main reason for this is their higher price. For many people, a few hundred euros are more or less crucial.

The inverter split systems

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The inverter split air conditioners are very inexpensive. Quite simply, these are systems that automatically regulate their performance, as opposed to the ordinary models in on-off mode. So you can easily maintain the temperature you want with a lower noise level and, most importantly, with energy savings of 25 to 70% compared to traditional air conditioning systems. The inverter air conditioning systems offer high performance and a much longer service life, because the power consumption here is reduced when the room temperature is close to the desired one. In this case, the inverter switches to low power so that the temperature remains in the optimal range without unnecessary loss of electricity. The inverter split systems are infinitely adjustable and thus constant temperature can be maintained without large fluctuations in the room.

There are 4 types of inverter – split systems

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. 1. The AC – AC (energy class B and C)

2 DC -. DC (energy class A)

3 DDC -. Digital DC (Class A and A +)

4. DDC Hybrid (energy class A + and A + +)

Generally speaking, all types of inverters are high-tech products. Here we want to enumerate their advantages again, and these are: a wide range of functions, very low noise, high energy savings, easy temperature control. You could say that an inverter air conditioner is ideal for the home. If you can afford the price, then opt for an inverter air conditioner for your apartment, house or office, you will certainly not regret that!

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