Electricity bill: place aluminum foil behind your radiators, the expert tip that works (Page 2 ) | March 22, 2025

Aluminum foil, an unexpected ally for your heating

Aluminum foil, that roll often forgotten in our kitchen drawers, can become your best ally against heat loss. Here’s how to do it:

 

Create your panel: Take a piece of cardboard the size of your radiator.
Cover it with foil: Carefully wrap the cardboard in foil, shiny side out, and secure it with staples or tape.
Install it: Place this panel between your radiator and the wall, leaving a small gap to allow air to circulate.

And there you have it! Your radiator instantly becomes more efficient, without any additional expense.

Alternative for the less handy

If DIY isn’t your thing, don’t panic. DIY stores offer aluminium thermal insulation films, often sold in rolls. Although more expensive (around €20 to €50 for 15 metres), this option is ideal for covering multiple radiators or for those who want a ready-made solution.

The concrete benefits of this tip

By reflecting heat back into the room, this method not only provides increased comfort, but also:

Reduce your electricity bills by optimizing the consumption of your radiators.
Extend the life of your heating, because your devices work less intensively.

In addition, this trick is particularly effective in older homes, which are often less well insulated, where every degree gained counts.

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