HEATING HACKS: Octopus Energy says using residual heat - not higher temperatures - is the key to cheaper winter warmth (Image: Getty) Households looking to stay warm without driving up energy bills are being urged to follow a simple '30-minute rule' when using their central heating, according to advice from Octopus Energy. However, energy specialists say that approach is not always the most efficient way to heat a home - or the cheapest. Octopus Energy says timing is key, as most modern heating systems take time to warm up properly. However, Octopus Energy notes that the ideal warm-up time can vary. Well-insulated properties, on the other hand, are more likely to retain warmth for longer once the heating is turned off.

Source: Daily Mirror January 25, 2026 06:32 UTC