Overview

• UK households are advised to close blinds, curtains and shutters at dusk, typically between 5:30 and 6:30 p.m. in autumn.
• The Energy Saving Trust estimates up to 40% of a home's heat is lost through windows and doors, underscoring the value of window coverings.
• Allan Reid of Art Windows and Doors says closing coverings creates an insulating layer that holds onto daytime warmth before the heating is switched on.
• He recommends pulling sofas and heavy curtains at least six inches away from radiators, noting furniture can absorb up to 60% of emitted heat if it blocks them.
• He also suggests placing reflective foil behind radiators and sealing letterboxes and keyholes with simple fittings to reduce draughts.