Heatwave: the simple switch that helps keep your home cooler

When the heat sets in, it is common to think that closing the shutters during the day and airing the home at night is enough. Yet one very simple detail can make a real difference. Sometimes, pressing a switch is all it takes to make the house feel a little less stifling.

The basic habit is still helpful, but not always sufficient

Closing shutters, lowering blinds and keeping windows shut during the hottest hours remains a sensible habit. The Ministry of Health recommends it, and for good reason. It is the first line of defence against intense sunlight beating down on walls and glazing.

However, during a heatwave, this approach has its limits. Even when well shielded, a home often retains heat. The air becomes heavy, rooms feel airless, 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 one second and can genuinely help keep your home more bearable.

The Ministry’s recommendation that makes the difference

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

Why? Even on standby, some devices continue to give off a little heat. Television sets, internet routers, computers, games consoles and chargers left plugged in for no reason all contribute. Individually, this may seem insignificant. Together, they become a small, unseen heat source in the home.

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

Why this habit alters the feel of a room

A warm room is not only caused by the outdoor air. It is also warmed by everything inside that releases heat. A television left on, a running computer or a charger kept plugged in may appear harmless. Nevertheless, they add to that unpleasant feeling 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 move, almost unnoticeable, but very practical when the thermometer rises.

There is another benefit, too. Sorting through these items helps you identify what is genuinely useful and what is not. During summer, keeping things simple helps enormously.

The right routine for cooling your home

During the day, keep the side of the home facing the sun closed up. This is when outdoor heat is at its most intense. Opening windows then often means letting 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 temperatures fall
• avoid running several appliances at the same time

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

When the air remains too heavy, spend some time elsewhere

Sometimes, despite all the right habits, the house 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 advises spending two to three hours a day in a cooler place, where possible. This is not a luxury: it allows the body some time to recover. Heat quickly causes fatigue and affects sleep, mood and energy levels.

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

Useful habits to remember throughout the summer

Extreme heat requires proper organisation. Closing shutters in the daytime and airing the home at night remains the foundation. But it is only one part of the answer. The often-forgotten measure is switching off electrical appliances that silently generate heat.

In the middle of a heatwave, every small detail helps. A cooler home also means less fatigue and a little more calm. When the days feel never-ending, this kind of simplicity can make a real difference.

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