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How to use the air conditioning to cool the house, without spending much?

How to use the air conditioning to cool the house, without spending much?

You are constantly using the air conditioning to cool the house, but want to reduce the impact on the bill? Read these 6 tips.

22 jul 2025 • 3 min


How to save on the electricity bill on hot days?  

Frequent use of air conditioning often results in a high cost on the electricity bill at the end of the month.  

At this time of increased heat, air conditioning consumption can represent up to 15% of the electricity bill - data from Seletra, cited in Notícias ao Minuto.

The institution shares some tips so that you can save on this expense.

"With the arrival of summer and rising temperatures, air conditioning once again becomes one of the most used appliances in Portuguese homes. However, its regular use can represent a significant burden on the electricity bill, in some cases, representing up to 15% of the total monthly amount," the quote can be read on Notícias ao Minuto.

6 tips to not spend so much on air conditioning

So, pay attention to these 6 tips from Seletra to avoid spending too much on air conditioning: 

  • "Set the temperature to 25°C in the summer (energy consumption of the air conditioning increases by 7% for each Celsius degree)."
  • "Use the ventilation or dehumidifier mode, which consumes less."  
  • "Keep doors and windows closed during operation"  
  • "Clean the filters regularly"  

In addition, you can also read the tip about Inverter devices with good energy rating: "The inverter technology is more efficient and maintains stable air conditioning, while the conventional one works in on/off cycles, consuming more energy."

"In very hot days, turn on the air conditioning in the coolest hours of the morning and keep the blinds or shutters closed," reads the quote in the news.

If you want to know similar tips, follow Poupança no Minuto on its various channels.

Savings in a Minute is a brand owned by Financefy, S.A., a credit intermediary registered with the Bank of Portugal under number 0006860. Authorized services include: Presentation or proposal of credit contracts to consumers. Assistance to consumers, through the performance of preparatory acts or other pre-contractual management work regarding credit contracts that have not been presented or proposed by them. Lenders: Bankinter, S.A. - Branch in Portugal, Caixa Geral De Depósitos, S.A., Banco BPIi S.A., Banco Santander Totta, S.A., Abanca Corporación Bancaria, S.A., Branch in Portugal, Banco Ctt, S.A., Novo Banco, S.A., Cofidis, BNP Paribas Personal Finance, S.A. - Branch in Portugal, Union De Créditos Inmobiliários, S.A., Establecimiento Financiero De Crédito (Sociedad Unipersonal) - Branch in Portugal, Bni - Banco De Negócios Internacional (Europa), S.A., Banco Bic Português, Sa, Unicre - Financial Credit Institution, S.A.  

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