Is it safe to put curtains behind a radiator?

Author: Prof. Brady Stanton V  |  Last update: Wednesday, October 15, 2025

It is safe to hang curtains over radiators. The main reason for this is that hot water radiators are not capable of reaching the temperature to create a fire hazard. It is more dangerous to leave other heat sources such as candles with open flames on the window near the curtains.

Can you put curtains behind radiators?

If by chance your curtains do cover your radiator at all it is recommended that you tuck them behind the radiator and not block it. This advice applies to a whole range of radiators. This could be a single panel, double panel, horizontal, vertical or column model, it doesn't matter.

Can a radiator set fire to curtains?

Curtains. Curtains should be long enough to cover your window, but not long enough that they hang over your radiators. While it's very unlikely that a curtain will catch alight from being heated up to a high temperature, do you really want to take the risk.

Is it OK for curtains to touch radiator?

Curtains can touch radiators if made of non-flammable materials. Opt for fire-resistant fabrics like wool or polyester for added safety.

Do radiators get hot enough to start a fire?

Comments Section Water/radiator pipes can not get hot enough to start combustion. Steam forms at boiling pt around 212 degrees, typical wood ignition temp is 480 degrees. Not hot enough to be a fire hazard, but can hurt if you touch them. If you have pets or kids a radiator cover might be a good idea.

How to install radiator foil to keep the heat in and reduce your energy bills

Do long curtains block radiator heat?

Just like a radiator cover or large piece of furniture, curtains over radiators do block heat from entering the room efficiently. The reason for this can be explained by how radiators actually heat the room. The process is called convection.

Is it a fire hazard to cover a radiator?

The Quick Answer. Yes, radiator covers are safe, when installed correctly and used sensibly. However, you should make sure to follow any manufacturer's guidelines when installing a radiator cover, to ensure it meets safety requirements, and to prevent any unnecessary accidents.

How do I stop my radiator heat from going behind my curtains?

Fit a deep sill or shelf over the radiator, and position your curtains so that they touch the shelf. By touching the shelf your curtains will minimise draught from your windows, and the shelf will act to push the radiator heat out into your room, rather than into the void between the curtains and window.

Why are radiators under windows?

This is something most of us learn in school and it helps to explain why radiators are located underneath windows. As the hot air rises from the radiator, the cold air that is coming in through the window pushes against the warm air, circulating it around the room much more efficiently.

Is it okay if curtains touch the heater?

Electric baseboard heaters

You should never allow draperies/curtains to touch the heater.

Can curtains catch fire from heat?

Since curtains are usually made of flammable textiles or fabrics and synthetic fibres, they are prone to fire hazards, and curtain fires are commonly caused by overheating appliances such as high-power lamps, iron, and etc.

Can you put a couch against a radiator?

It's recommended to maintain a gap of at least one foot (12 inches) between your furniture and radiators. However, for extra protection, you can also use insulated or reflective barriers as heat protectors to safeguard your furniture from the adverse impact of radiator heat.

Can you put a towel on a radiator fire hazard?

No. Electric radiators should not be used for towel drying. Covering your radiators with towels, clothes or items of any other kind will reduce the radiators' performance and may cause a fire hazard.

How do you decorate behind a radiator without removing it?

Steps to Paint Behind a Radiator: Option 2 (Leaving the Radiator in Situ)
  1. Tape Around the Radiator: Apply painter's tape or masking tape to the edges of the radiator and any areas that you want to protect from paint.
  2. Apply the paint: Use an angled brush to carefully paint the areas closest to the radiator.

Does foil behind radiators work on internal walls?

On external walls, tests have shown that it reduces heat leaking through the wall outside, stopping waste. On internal walls, it will have the same effect where the temperature of the space on the other side of the wall is low (such as in a hallway or a neighbouring home in a terrace).

Can curtains block heat?

Curtains and Drapes

During summer days, you should close draperies on windows receiving direct sunlight to prevent heat gain. Studies demonstrate that medium-colored draperies with white-plastic backings can reduce heat gains by 33%.

Is it okay to cover a radiator with curtains?

Correctly fitted curtains should not cover the top of the radiator, but should stop just below the window ledge. Of course, badly fitting, leaky windows won't help.

Does tucking curtains behind radiators?

It is not a good idea to tuck curtains behind radiators when the heating is switched on. The typically thick fabric that is used in the makeup of curtains will cause panel blockages at the back and sides.

How long should curtains be above a radiator?

Areas with lots of traffic may benefit from having the fabric further away from the floor. We recommend ending the curtains 15cm below the windowsill. However, if you have a radiator in the way, finishing just 1 cm above the radiator is wise so as not to obstruct the heat.

Should curtains cover radiators on Reddit?

Having fabric covering the radiator when the radiator is in use is not a good idea. Leave it exposed.

Does keeping curtains closed keep heat out?

Close curtains and blinds

If you're on a budget consider only thermal lining the rooms with direct sun. White or light coloured curtains and blinds are better at reflecting heat and light away from your home. If you have thick, dark curtains, closing them will only trap heat in the room.

Can curtains catch fire from a radiator?

While unlikely, there is a small risk that a curtain placed in front of a radiator could catch fire. Although your radiator is there for heat, usually this is a bridge too far for people. This is more likely to occur if your curtain consists of flammable material and you have an electric radiator.

What should you not put around a radiator?

Chairs, sofas, couches, and other furniture will interfere with the circulation of heat generated from the unit. Items touching the radiator can also overheat and cause damage to the item or injuries and fire hazards for the people in the home.

What type of radiator cover is best?

This can vary greatly from one material to another. If you want the best heat conduction, a metal radiator frame is a good option for you. This is because metal takes over the radiator's heat, causing the metal itself to heat up and radiate this again.

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