Overview

• BestHeating advises many households can wait to run central heating until outdoor temperatures fall below around 15°C, with 13°C flagged as a health risk level for vulnerable people.
• Skipping regular use in September could trim bills by roughly £180, according to coverage citing BestHeating estimates.
• Lowering the thermostat from the UK average 20.8°C to about 18°C may cut fuel costs by up to 10%—around £80—with larger savings possible by heating only occupied rooms and keeping the thermostat room’s radiator on.
• Met Office records reviewed in media reports identify 8 September as the likely 'switch‑on day' when average temperatures drop below the 15.5°C threshold for three days.
• HomeServe urges a short early‑autumn boiler run to spot faults, and those struggling are advised to seek help from local councils or energy suppliers.