Damp sheet trick for cooler nights
As temperatures in the UK are predicted to reach up to 40°C in some regions, according to the Met Office, many Brits are struggling to keep their homes cool. British Gas engineer Peter Knowles has shared a number of home cooling tips, including one that may seem a little odd but is surprisingly effective: hanging a damp sheet from an open window.
"We all know how frustrating it is when our homes are hot and stuffy," Knowles said. "The good news is that there are some practical steps that households can take to help keep indoor temperatures down during the summer months."
How to make an improvised air conditioner
To create this DIY cooling system, soak a clean cotton or lightweight sheet in cold water and wring it out thoroughly so it is damp but not dripping. Position the sheet across an open window frame, and for best results, place a fan blowing air through the sheet and into the room. The moisture evaporates, cooling the incoming air naturally. You may need to re-dampen the sheet every few hours as the moisture evaporates.
For south- and west-facing windows that catch afternoon sun, Knowles also recommends reflective window film to reduce heat and glare.
Other tips to keep your home cool
British Gas has shared several additional tips for UK homeowners to try during the summer months. Some require forward planning, while others offer almost immediate relief from persistent heat at night.
Switch to cooler lighting: Traditional light bulbs generate a surprising amount of heat. A 60-watt incandescent bulb can release around 50 watts of heat into a room, while an LED with the same brightness emits just 1-2 watts.
Unplug heat-generating devices: Chargers, laptops, and other devices that are plugged in release ambient heat even when not in use. During a heatwave, multiple devices can contribute to that stuffy feeling, so unplugging what you're not using helps keep rooms cooler.
Save batch cooking and washing for cooler times: Use ovens, hobs, tumble dryers, and washing machines during the coolest parts of the day to prevent adding extra heat when temperatures peak. Batch-cook early morning or late evening, air-dry laundry outdoors when possible, and embrace lighter meals that don't require cooking during the hottest hours.
Keep windows closed during the day: It might feel contradictory, but during the daytime, it's best to keep windows closed to prevent warm air from entering your home. Light-coloured curtains or blinds in heavier fabrics can also be effective at blocking heat if kept closed.
Position fans thoughtfully: Place them at floor level to circulate cooler air rather than pushing warm air up to head height. In the evening, try pointing a fan out of the window to push hot air out. Opening windows at night also provides natural ventilation without running fans constantly.
