Singapore advises 25°C for air conditioners to cut energy use

Setting an air conditioner to 18°C to cool a room faster is discouraged, with Singapore recommending around 25°C, as lower settings increase energy consumption without speeding up cooling. The compressor, the system's core component, works harder and longer at very low thermostat settings, wasting electricity and potentially harming the unit. Adjusting to 25°C balances comfort and efficiency, reducing bills and environmental impact. Combining the AC with a fan, sealing doors and windows, and using programmed shut-off times can maintain comfort at moderate temperatures. This approach also supports better sleep by avoiding excessive cold that disrupts rest.