How to choose air conditioner to save electricity

The keywords consumers need to know when buying an air conditioner are: suitable capacity, energy saving, brand, features.

Suitable capacity

To choose the capacity of the air conditioner, users need to rely on the area and volume of the room that needs to be cooled. The general formula to apply is 600 BTU for 1m2, in which BTU is the British thermal unit, used to measure the capacity of heating or cooling equipment. 9,000 BTU is equivalent to "1 horse", or 1 HP. Higher BTU means more cooling capacity.

However, cooling capacity also depends on many other factors besides room area such as construction materials, direct heat source, number of people in the room, windows...

Therefore, each type of room can apply a different formula, often with a larger capacity than the standard. For example, rooms with direct sunlight, rooms connected to other rooms, rooms with ventilation fans... need to add 0.3 to 0.5 HP. Living rooms or kitchens should add 0.5 HP because there are often many people or there is a direct heat source. Air conditioners for cafes or restaurants, crowded places and frequently open doors need a large capacity type. Hotels that rent rooms for a short time need equipment that can cool quickly to meet the needs of users. Most offices have a stable number of people and often sit for long periods of time, so you can consider the types used for family living rooms.

Save electricity

There are currently two types of equipment: conventional air conditioners using thermal sensor relays and air conditioners using inverter technology, controlling temperature through a microprocessor electronic circuit.

Inverter machines are often advertised as being more energy efficient. However, this only happens if the device is run continuously for about 8 hours.every day and the amount of electricity consumed is significantly reduced. Recent testing by Samsung has shown that between inverter and non-inverter air conditioners, inverter air conditioners save 20% of electricity consumption per month. According to the pageThespruce,After 8.4 months, it can be said that users get their electricity bill back to make up for the difference when buying an Inverter.

Users can compare information about the unit's Energy Efficiency Ratio (EER). EER is required to be displayed on modern air conditioners. Units with higher EER ratings use less energy.

How air conditioners work (Source: YouTube)

Trademark

Each manufacturer has its own advantages, from design to accompanying technology. The brand also directly reflects the place of manufacture or the country of import of the machine, such as Japan, Korea, Thailand, Europe or China. Some brands have been famous in the market for their ability to save electricity and run smoothly without much advertising.

Users should choose a brand based on their preferences, but should also pay attention to the price difference between brands. A piece of advice that many people give is to try the air conditioner in the store before buying, to check in advance about the noise level and ease of use.

Features, technology

The main function of air conditioners is to cool and regulate the air. However, each type of machine with a different brand often has other accompanying features such as energy saving, air filtration, deodorization, antibacterial, health protection... Inverter machines also have the ability to maintain a stable room temperature, meaning users do not feel too hot or too cold during use. This feature is very suitable for people who are sensitive to temperature and for infants. Some brands even haveseparate modes for each use case to save electricity for consumers. For example, Samsung air conditioners have a Single User Mode that helps the compressor operate at lower capacity, reducing power consumption while still keeping the room cool; LG has a mosquito repellent mode; Daikin has a magic eye sensor...

Installation, maintenance, service

Each type of air conditioner has a different design and installation method. If not handled properly, the machine will not work well or will quickly break down, even consuming many times more electricity.Make sure the unit is the right size for the window or area you plan to install it in. If necessary, use an installation service. Although it costs more, it can save you time and reduce unnecessary injuries when installing it yourself.

The equipment also needs to be cleaned and components wiped at least once every 6 months or at the beginning of the season.hot to ensurelife as well as avoid risks during use.

According to VNE