Heatwave: the simple switch-off habit that keeps your home cooler

When hot weather sets in, people often think they are doing the right thing by closing shutters during the day and airing the home at night. Yet one very simple detail can make a real difference. Sometimes, simply flicking a switch is enough to make the house feel a little less oppressive.

The basic habit is still useful, but it is not always enough

Closing shutters, lowering blinds and keeping windows shut during the hottest hours is still a sensible habit. The Ministry of Health advises it for good reason. It provides the first barrier against intense sunshine beating down on walls and windows.

However, during a heatwave, this approach has its limits. Even with good protection, a home often retains heat. The air becomes heavy, rooms feel stifling, and the night is not always enough to clear it all away.

This is where many people miss a more effective action. It costs nothing, takes a second and can genuinely help keep the indoors more bearable.

The Ministry recommendation that makes a difference

The advice is straightforward: switch off electrical appliances that are generating unnecessary heat. Do not merely turn them off with the remote control. Where possible, also cut their power at the extension lead.

Why? Because some appliances still give off a little heat while on standby. Television sets, internet routers, computers, games consoles and chargers left plugged in for no reason are all examples. Individually, this may seem minor. Together, they become a small, invisible heat source in the home.

It is not dramatic. But in an already warm bedroom, living room or home office, every degree matters. We often think about the sun, but can overlook everyday appliances quietly working against us.

Why this habit changes the feel of a room

A warm room is not heated only by the outdoor air. It is also affected by everything inside that releases warmth. A television left on, a running computer or a charger left plugged in may appear harmless. Yet each one contributes to that unpleasant sense of a gentle but persistent furnace.

By switching appliances off at an extension lead, you reduce these small energy losses. You also cut down on the number of devices needlessly left on standby. It is a smart step, almost unnoticed, but very practical when the temperature rises.

There is another benefit, too. Sorting through these appliances helps you identify what is genuinely needed and what is not. In summer, keeping things simple is a great help.

The right routine for cooling your home

During the day, keep the home closed on the side facing the sun. This is when outdoor heat is at its most intense. Opening windows then often simply lets scorching air inside.

Once the outside air becomes cooler, however, open everything wide. Early in the morning, late in the evening or overnight, windows can be left open to create a through-draught. This is often the best time to refresh the air indoors.

Here is a simple routine to remember:

• close shutters and windows as soon as the sun becomes intense
• switch off unnecessary electrical appliances at the extension leads
• air the home thoroughly once the temperature falls
• avoid running several appliances at the same time

It is not a magic formula, but it is a genuine strategy. And it works better than many people expect.

When the air remains too heavy, spend some time elsewhere

Sometimes, despite taking all the right steps, the home still feels stifling. In that case, do not hesitate to find somewhere cool for a few hours. A public library, cinema, museum or air-conditioned shopping centre can provide a welcome break.

The Ministry also recommends spending two to three hours each day in a cooler place where possible. This is not a luxury. It gives the body a chance to recover. Heat quickly causes fatigue, affecting sleep, mood and energy levels.

If you need to go out, take care when travelling by car. The inside of a vehicle can exceed 50 °C in under fifteen minutes. That happens very quickly - far too quickly to take lightly.

Heatwave habits to remember throughout the summer

Extreme heat calls for proper organisation. Closing shutters during the day and airing the home at night remains the foundation, but it is only one part of the answer. The frequently forgotten action is switching off electrical appliances that quietly generate heat.

During a heatwave, every small detail helps. A cooler home means less fatigue and a little more calm. When the days feel endless, this kind of simplicity can make a real difference.

Ultimately, there is no need to change everything. It is about making better use of what you already have: a closed shutter, a window opened at the right time and an extension lead switched off. It is a discreet trio, but a remarkably effective one.