The truth is, your HVAC system will be doing the same amount of work no matter your thermostat setting. You see, your AC creates a cooler indoor temperature by examining the temperature outside. To allow your AC system to find this balance efficiently, it’s best to have your thermostat on a higher setting.
Surprisingly, the ideal temperature would be around 25°C. It might be tempting to blast the AC at a lower temperature, but a higher setting will be more energy-efficient and save on bills.