Sunny days invariably rhyme with a drop in the energy bill, which is always appreciable.

Nevertheless, as soon as spring is over, summer once again threatens to weigh down our budget.

Because after the heating, it is the air conditioning that often runs at full speed!

And while only certain hot regions of France, and in particular the South, were previously concerned, global warming promises generalized temperature increases.

It is therefore urgent to adopt the right reflexes!

Identify their needs

Before running to buy an air conditioner as soon as the thermostat overheats, it is better to examine all the options available to you to make the wisest choice.

First determine what you want to use this device for.

Is it to be placed in the bedroom or in the living room?

Do you really need it all the time or just occasionally?

Depending on your thoughts, you can orient yourself towards different models.

But be careful not to stop at the cost of purchasing the equipment!

Also take into account its energy consumption and maintenance costs!

To avoid breaking the bank, opt for an efficient appliance, identifiable by the energy performance indicator affixed to the label and ranging from A++ to G--.

Conversely, forget the energy-intensive models (below C or even D), often less expensive but much more greedy.

To each his own model

The monobloc air conditioner is the most affordable device.

This column is responsible for recovering the hot interior air to extract it outside.

The mobile version costs between 200 and 300 € and can be moved around easily.

On the other hand, it makes a lot of noise and requires passing the exhaust pipe through a half-open window, which can be counterproductive.

Count around 850 € for a fixed version installed on the wall and its outlet that you will place on the exterior facade.

Models of so-called monosplit or multisplit air conditioners are more complex and require the use of a professional.

If they are less noisy, these devices involve installing a block inside, as well as a second outside the house.

Count at least €700 for a monosplit (excluding installation) and €1,300 for a multisplit with two indoor units, in order to cool two rooms.

Watch out for the thermostat

If the electricity consumption of an air conditioner varies depending on the model, keep in mind that the bill can quickly rise!

The magazine

60 million consumers

made the calculation during the summer of 2021, as it had explained to France Info: “At the rate of an average consumption of 1 kW/h, and taking an average tariff of l electricity, we arrive at €4.50 for a day of use.

For a week, the bill reaches 32 €”.

In detail, the cost can vary from 22 € for the most efficient devices, to 44 € for the most energy-consuming.

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HEAT WEATHER

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At these prices, it is therefore better to limit the use of the air conditioner to the hottest days, betting the rest of the time on a fan (which consumes nearly 100 times the energy!), closing the shutters during the day and the opening of the windows to ventilate once the evening has come.

Also, do not try to go from 35° to 20°C!

To reconcile comfort and energy saving, it is advisable not to exceed 8° difference with the outside temperature.

Also, to avoid over-consumption, don't set the air conditioning too low in hopes of cooling the house faster.

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The alternative: the heat pump

Rather than opting for a simple air conditioner to cool your house in the summer, you can turn to a heat pump.

If this device running on renewable energy represents a real financial investment, it allows you to save money all year round.

In winter, it reduces the heating bill, while if you opt for a reversible model, you can also cool your house during the summer.


While a heat pump costs around €12,000, the combination of MaPrimeRénov and the energy bonus (energy savings certificates) makes it possible to finance up to €9,000 of the bill, leaving €3,000 to be borne by the household. .

However, prefer an air/water heat pump to benefit from maximum financial aid.

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