A British Gas engineer has shared an ingenious 'natural cooling' hack that can cool homes instantly during the ongoing heatwave without costing a penny. Peter Knowles, Service and Repair Engineer at British Gas, advises hanging a damp sheet in front of an open window during evening hours to naturally cool incoming air.
Simple and Effective Natural Cooling
As a four-day amber weather warning for extreme heat takes effect across large parts of the UK from today until Thursday, households are seeking affordable ways to stay comfortable. Knowles explains: 'We all know how frustrating it is when our homes are hot and stuffy. The good news is that there are some practical steps that households can take to help keep inside temperatures down during the summer months.' The damp sheet hack is highlighted as the standout tip due to its simplicity and immediate impact.
Additional Cooling Tips from British Gas
Knowles also recommends using reflective window film for south and west-facing windows that catch afternoon sun to reduce heat and glare. Other small changes that can make a real difference include doing washing in the evening, keeping windows closed during the middle of the day, and placing fans on the floor to circulate cooler air rather than pushing warm air around at head height.
Switch to Cooler Lighting
Conventional light bulbs produce surprisingly high levels of heat. According to Knowles, a 60-watt incandescent bulb can emit approximately 50 watts of heat into a room, whereas an LED with equivalent brightness releases merely 1-2 watts. Smart lightbulbs that can be managed via a smart home app are also an excellent alternative to traditional high heat-generating incandescent bulbs.
Unplug Heat-Generating Devices
Chargers, laptops and other devices left plugged in release ambient heat even when not actively in use. During a heatwave, multiple devices can contribute to that stuffy indoor feeling, so unplugging what you're not using will help keep rooms cooler.
Adjust Cooking and Washing Schedules
Operating ovens, hobs, tumble dryers and washing machines during the coolest periods of the day avoids introducing additional heat when temperatures reach their highest. Knowles advises: 'Batch cook early morning or late evening, air-dry laundry outdoors where possible, and embrace lighter meals that don't require cooking during the hottest hours.'
Help Your Fridge Run Smoothly
When it's hot outside, your fridge works harder and generates more heat in your kitchen. Knowles recommends checking the thermostat is set correctly, keeping the coils at the back clean and dust-free, and defrosting regularly to help it run more efficiently and produce less excess heat.
Keep Windows Closed During the Day
While it may seem counterintuitive, during daylight hours it's advisable to keep windows shut to stop warm air from infiltrating your home. Light-coloured curtains or blinds made from heavier fabrics can effectively block heat when kept drawn.
Fan Positioning Matters
Place fans at floor level to circulate cooler air rather than pushing warm air around at head height. In the evening, try pointing a fan out of the window to push hot air out. Opening windows at night also creates natural ventilation without needing fans running constantly.
Adapt Living Spaces to the Heat
Draping leather sofas with lightweight, breathable cotton or linen throws will enhance comfort during hot weather. Where feasible, relocating activities outdoors can prevent heating up indoor spaces.
