How do you dress a window with a radiator underneath?

Author: Dr. Marie Willms MD  |  Last update: Friday, June 12, 2026

Floor-length curtains work best with radiators under the windows, but closing them means they'll block the heat generated by the radiator. Generally, pairing up floor-length curtains with other window coverings can do the trick.

Is it a good idea to put a radiator under a window?

Radiators should be positioned under the window - placing opposite a window will result in colder air from the window being drawn across the room. If placing it under a window is not possible, the next bext place is on the wall that is at 90 degrees to the window.

What curtains when radiator under window?

Shorter curtains

If you want your room to benefit from the heat generated by your radiator, one obvious option is to choose curtains that don't extend below your windows. It's a practical choice, as longer curtains would act as a barrier, preventing heat from circulating around the room.

Should curtains go above or below radiator?

Whether you have a double or single panel radiator, the bottom of the curtains should sit at least 2 – 4 cm above the top of the radiator. Or, at the same height as the window sill.

How to stop curtains from blocking a radiator?

How to hang curtains with a radiator in front? Use long curtains. When heating is on, curtains go up on the windowsill. This prevents heating the curtains and not the room. Take your curtain pole as wide as you can. Ensure curtains don't obstruct any radiator heat. If worried, Roman blinds are a good option.

How to Dress Windows | Window with Obstruction Below

How to style a window with a radiator underneath?

Floor-length curtains work best with radiators under the windows, but closing them means they'll block the heat generated by the radiator. Generally, pairing up floor-length curtains with other window coverings can do the trick.

Is it better to tuck curtains behind a radiator?

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.

Do curtains in front of radiator block heat?

When curtains are pulled in front of a radiator, the radiator releases warm air behind the curtain and heats only the window's space. During winter, days are shorter and curtains are pulled even earlier than usual. By doing so, we risk using more energy/heat more than necessary, leading to much higher bills.

Is the room warmer above the radiator or below them?

Step 3: Choosing the Ideal Placement

So it's recommended that you place your radiator in the horizontal space under the window. The heat will rise from the radiator, mixing with the cold air coming through the window which in turn will help the radiator's heat distribute around the room.

How far below a window should curtains hang?

In this case, you should measure up to 1cm before the window sill to ensure that the curtains do not drag. However, a more common style would be for curtains to hang slightly below the window sill and we would recommend measuring anywhere between 10cm to 20cm below the sill to provide sufficient privacy in most cases.

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.

Can curtains catch fire from baseboard heat?

Risk of Fire and Burns

Older baseboard heaters have gaps at the top of the heater where small toys can fall in and cause problems. Drapery or furniture placed too close to heaters can also be a problem.

Do radiator covers block heat?

Some radiator covers can impede the circulation of warmth, reducing the room's temperature, and ultimately hampering your radiator's heat output. There are so many different designs and materials homeowners can choose from, luckily, so it's fairly easy to avoid this issue.

Where should you not put a radiator?

Keep it away from furniture

Wherever you choose to put it, try not to position your radiator behind large items of furniture, such as the sofa or cabinets.

What height should a radiator be below a window?

If a radiator is to be installed under a window, the height of the radiator depends on the distance between the windowsill and the floor. The lower edge of the radiator should be placed at least 10 cm above the floor and the upper one at least 10 cm below the sill.

Where does the radiator go in Dusty Trip?

Put the radiator just ahead of the engine. (The Radiator is located at the table.)

Should you place a radiator under a window?

The traditional place to position your radiator is the coldest part of the room. Whether that's beneath your window or against the wall. This is due to conduction, with incoming cold air causing more effective heat conduction and pushing the hot air from your radiator into the middle of the room.

What does bleeding a radiator do?

Bleeding a radiator is the process of removing any excess or trapped air within the system. Air cannot be heated in the same way as water, so it is usually the reason why a radiator feels cold at the top. The air rises and becomes stuck, so the hot water can only reach about halfway up the radiator.

Should I put fan in front or behind heater?

By the way, the fan inside the heater housing is the primary thing moving the heat off the coils. The fan you set up behind it is mostly moving that heat to distant parts of the room in which it is sitting- which is a good thing.

How to dress a window with a radiator underneath?

Wood shutters in crisp white, are classic and practical. Open just the top shutters to let in light while preserving privacy, or open them all. Shutters work best on their own, so if you want to add curtains too, it's better to go with wood blinds. Roman blinds.

Why are radiators always in front of 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.

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 long curtains in front of a radiator?

When your curtains fall over your radiator make sure you aren't covering the radiator, remember to tuck them into the top of the radiator so the heat can still circulate. If you choose to go for floor-length curtains, make sure they don't cover your radiator, if they sit to the side, that's okay!

Do radiators under windows cause condensation?

Yes, placing a radiator directly under a window can cause condensation to form on the glass, due to the temperature difference between the warm radiator and the cold window surface. As the radiator heats the air, it rises and comes into contact with the cooler window, causing the air to cool down rapidly.

How to stop radiator heat going behind curtains DIY?

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.

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