Radiator foil

Radiator foil

A silver rectangle against a blue wall with an arrow pointing down to a radiator.

What is radiator foil?

Radiator foil is a thin, shiny material you can put on the wall behind your radiators.

A tick beside a radiator that is front of a blue wall.

You should only use radiator foil behind radiators that are fixed to a wall. 

A radiator with red arrows of heat going from it to some silver foil.

What does radiator foil do?

The heat from the radiator goes on to the radiator foil. 

A radiator with red arrows of heat going from it to some silver foil and then red arrows going from the foil above and below the radiator and beyond it.

The radiator foil bounces the heat back into the room.  

A cross beside a radiator with red arrows of heat going out of it and through a wall.

The radiator foil stops the heat going out of the room through the wall. 

A group of people sitting in a lounge.  Beside them is a five pound note with an arrow pointing into a jar with notes and coins in it.

This helps the room stay warmer for longer and can help you to save energy and money.

A cylinder with numbers 1 and 0 at the bottom and a red arrow pointing to zero.

How to use radiator foil

Turn off the radiator by turning the valve on the side down to 0. 

A radiator.

Let the radiator cool down if it is warm. 

A radiator with a green arrow along the top and a green arrow down the side.

Measure the length and height of the radiator.

A pair of scissors.

Cut the radiator foil so it will fit behind the radiator.

A woman holding some polish and a duster in a room with a radiator.

Clean any dust from the wall behind the radiator.  This will make sure the radiator foil sticks well to the wall.

A roll of tape.

You can use double-sided tape or sticky pads with most radiator foil. 

A square of foil against a blue wall with jagged shapes on it.

Make sure the shiny side of the radiator foil faces out towards the room.

A square of foil with squares and rectangles of tape around the edges of it.

Stick the double-sided tape or sticky pads to the corners and edges of the radiator foil. 

A radiator with silver foil behind it and arrows from the silver foil to the wall.

Carefully stick the radiator foil on to the wall behind the radiator.  

A radiator valve with numbers on it and a red arrow pointing from number 1 towards number 3.

Turn the radiator back on by turning the valve back to where it was.

An outline of a house with red arrows going from inside the house to outside through the walls.

Extra tips for using radiator foil

It is best to use radiator foil on walls which are on the outside of the building because these walls lose the most heat.

A green tick beside a radiator which has some silver foil against a wall behind it.

It is a good idea to sometimes check the radiator foil is still sticking to the wall

A square of radiator foil and a wall with a green tick.

and to check the radiator foil and the wall are ok.

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How to get help

You can get help and advice on our website in the energy and money advice hub.

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If you are worried about money, contact our  Learning Disability  Helpline: 

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Call us Monday to Friday on 0808 808 1111

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Email us at [email protected]  

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Thanks to the British Gas Energy Trust for funding.