What Is a Three-Sided Electric Fire?

A three-sided electric fire is one of the most popular styles for modern media walls and feature walls.

But if you are new to electric fires, the name can be a little confusing.

When people hear “three-sided”, they often wonder if it means the fire heats from three sides, opens on three sides, or needs to be installed in a special kind of wall.

The simple answer is this:

A three-sided electric fire has glass visible on the front and both sides, so you can see the flame effect from three angles.

That is what gives it the clean, panoramic, modern fireplace look you often see in media walls, chimney breast builds and open-plan living rooms.

Quick answer

A three-sided electric fire is an electric fire with glass visible on the front, left side and right side.

It is usually built into a media wall or false chimney breast, allowing the flame effect and fuel bed to be seen from multiple angles.

Many three-sided electric fires can also be installed as one-sided or two-sided fires by covering one or both side panels, depending on the model.

This makes them popular for modern homes because they give you more design flexibility than a standard front-facing fire.

The easiest way to think about a three-sided fire is this:

A standard inset fire is mainly viewed from the front.

A three-sided fire gives you a wider view of the flame because you can see the front and both sides.

That means the fire feels more open, more modern and more built into the room.

It is not just a box sitting on the wall. It becomes part of the architecture of the space.

That is why three-sided electric fires work so well in media walls and feature chimney breasts.

Why are three-sided electric fires so popular?

Three-sided electric fires have become popular because they suit the way people design living rooms now.

A lot of customers are no longer just replacing an old fireplace. They are building a full feature wall around the fire.

That might include:

• A TV above the fire

• Built-in shelving

• Wood slat panels

• A false chimney breast

• Storage cabinets

• LED lighting

• A clean plastered finish

• A wider living room focal point

A three-sided fire suits that style because it gives the wall more depth and presence.

You get that showroom-style view where the flame wraps visually around the front of the wall.

Is a three-sided fire the same as a media wall fire?

Not always, but they are often used together.

A media wall fire is any electric fire that is designed to work as part of a TV wall or built-in feature wall.

A three-sided fire is a specific style of fire where the glass is visible on the front and both sides.

So a three-sided electric fire can be a media wall fire, but not every media wall fire is three-sided.

Some media wall fires are front-facing only. Others can be installed as one-sided, two-sided or three-sided depending on the design.

One-sided, two-sided and three-sided: what is the difference?

This is where people can get caught out, so let’s keep it simple.

One-sided installation

A one-sided installation means the fire is viewed from the front only.

The side glass is covered or built into the wall, so you only see the flame through the front glass.

This gives a cleaner, more traditional built-in look.

Good for:

• Simple media walls

• Fireplace openings

• Smaller rooms

• Minimal modern walls

• Homes where you want the fire to sit quietly in the design

Two-sided installation

A two-sided installation means the fire is viewed from the front and one side.

This is often used on corner chimney breasts or where one side of the wall is exposed.

Good for:

• Corner media walls

• Rooms where the wall return is visible

• Open-plan layouts

• Feature walls with one exposed side

• Customers who want a bit more depth without a full three-sided look

Three-sided installation

A three-sided installation means the fire is viewed from the front, left side and right side.

This gives the most panoramic look.

Good for:

• False chimney breast builds

• Wide media walls

• Open-plan living rooms

• Statement fireplace designs

• Rooms where the fire is a main focal point

Do you need a special wall for a three-sided fire?

You usually need some form of built-out wall, false chimney breast or media wall structure.

That is because the fire needs to be recessed or built into a properly prepared opening.

You do not usually just hang a three-sided fire flat on the wall like a simple wall-mounted fire.

Before ordering, you should check:

• Wall width

• Available depth

• Fire dimensions

• Opening size

• Power access

• Clearances

• Airflow requirements

• TV position, if fitting one above

• Whether you want one, two or three sides visible

A good installer or joiner can usually build the wall structure, but the fire model should be chosen before the wall is built.

That way, the opening can be made to the correct size.

Can a three-sided electric fire go under a TV?

Yes, many three-sided electric fires are used under TVs in media wall installations.

This is one of the main reasons they are so popular.

However, you still need to plan the layout properly.

Before fitting a TV above the fire, check:

• The fire manual

• Heat outlet position

• Minimum clearance requirements

• TV height

• Viewing angle from the sofa

• Cable routing

• Wall depth

• Soundbar position, if using one

A common mistake is placing the TV too high because the fire, opening and wall design were not planned together.

The goal is not just to make the wall look good. It needs to be comfortable to live with every day.

Are three-sided electric fires hard to install?

They are not difficult for a competent installer, but they do need more planning than a simple wall-mounted fire.

The main thing is getting the opening, wall depth, power access and clearances right before the wall is finished.

If the wall is built first and the fire is chosen afterwards, problems can happen.

The best order is:

• Choose the fire

• Check the product dimensions

• Plan the wall depth and opening

• Plan the TV and power position

• Build the structure

• Install the fire

• Finish the wall around it

That is the safer and cleaner way to do it.

Do three-sided electric fires give heat?

Yes, many three-sided electric fires include a heater.

The heater is usually designed to give local warmth to the room, rather than replacing your full central heating system.

A big benefit of electric fires is that many models allow you to use the flame effect without the heater.

So you can enjoy the fire visually in the evening without always producing heat.

This is ideal for:

• Media walls

• Modern living rooms

• Open-plan homes

• Spring and autumn evenings

• Homes where the fire is mainly for atmosphere

Are three-sided electric fires expensive to run?

The running cost depends on whether you are using flame-only mode or the heater.

Flame-only mode is usually very economical because it is mainly powering the lights, flame effect and fuel bed display.

As a guide, many Lumo electric fires cost approximately 1c–3c per hour on flame-only mode, depending on the model and your electricity rate.

The heater costs more because it is producing warmth, similar to other electric room heaters.

The best way to use a three-sided electric fire is:

• Flame effect for everyday atmosphere

• Heater only when you want extra warmth

• Timer and thermostat settings where available

• Keep the fire correctly sized for the room

Running costs are estimates only and will vary depending on your electricity tariff, model, settings and usage.

What rooms suit a three-sided electric fire?

Three-sided electric fires work best in rooms where the fire is part of the design, not just an appliance added afterwards.

They are especially good for:

• Modern living rooms

• Media walls

• Open-plan kitchen/living spaces

• Large sitting rooms

• New builds

• Renovations

• Feature chimney breast builds

• Rooms with a TV wall

They can also work in smaller rooms, but you need to be careful with size and depth.

In a compact room, a slimline three-sided fire may be better than a very deep model.

When is a three-sided fire not the best choice?

A three-sided fire is not always the right answer.

It may be overkill if:

• You only want a simple wall-mounted fire

• The room is very small

• You do not want to build out a wall

• You are replacing a traditional inset fireplace

• You want the fire to sit quietly rather than become a feature

• You have very limited wall depth

In those cases, a wall-mounted fire, inset fire or front-facing built-in fire may make more sense.

This is why the room matters more than the trend.

A three-sided fire looks brilliant when the wall is designed around it. It can look forced if the space is not right.

Best Lumo three-sided electric fires

Several Lumo ranges are suited to media wall and three-sided style installations.

The best choice depends on wall depth, room size and the finished look you want.

Lumo Cozy Series

The Lumo Cozy Series is a slimline built-in electric fire range designed for modern media walls.

It is a great option if you want the three-sided look but do not want to build a very deep wall into the room.

Good for:

• Slimline media walls

• False chimney breast builds

• Modern living rooms

• TV feature walls

• Homes where wall depth matters

Lumo Ultra Series

The Lumo Ultra Series is a deeper electric fire range designed for a stronger fireplace presence.

It is best for customers who want the fire to feel more substantial, with a deeper fuel bed and a more premium media wall look.

Good for:

• Deeper media walls

• Larger living rooms

• Premium feature walls

• Main room focal points

• Customers who want more depth and presence

Lumo Odyssey Series

The Lumo Odyssey Series is a premium panoramic electric fire range for wider, more statement-style installations.

It suits larger rooms where the fire is intended to become a major design feature.

Good for:

• Wide media walls

• Large open-plan rooms

• Statement fireplace walls

• Premium interiors

• Panoramic flame effect

Which Lumo range should you choose?

Here is the simple version:

Choose Cozy if you want a slimline built-in media wall fire.

Choose Comfort if you want a flexible slimline fire for modern feature walls.

Choose Ultra if you want a deeper, more premium fireplace look.

Choose Odyssey if you want a wider panoramic statement fire.

If you are not sure, start with your wall depth.

Wall depth usually tells us very quickly which range will make the most sense.

Final advice

A three-sided electric fire is a great choice if you want a modern, built-in fireplace feature with a more open, panoramic view of the flame.

It works especially well in media walls, false chimney breasts and open-plan living spaces.

But the key is planning.

Check your wall width, wall depth, TV position, power access and installation style before ordering.

And if you are unsure, send us your wall measurements, room photos and the kind of look you want. We can help you choose the most suitable Lumo fire before you order.

FAQs

What is a three-sided electric fire?

A three-sided electric fire is an electric fire with glass visible on the front, left side and right side. This gives a wider, more panoramic view of the flame effect.

Is a three-sided electric fire good for a media wall?

Yes. Three-sided electric fires are very popular for media walls because they create a modern built-in fireplace look and can be viewed from more than one angle.

Can a three-sided electric fire be installed as one-sided?

Many three-sided electric fires can be installed as one-sided, two-sided or three-sided depending on the model. Always check the product manual before ordering.

Does a three-sided electric fire need a chimney?

No. A three-sided electric fire does not need a chimney, flue or gas supply. It does still need correct power access, clearances, airflow and installation planning.

Can you put a TV above a three-sided electric fire?

Yes, many customers install a TV above a three-sided electric fire in a media wall. Always follow the product manual and check heat outlet position, clearances, TV height and cable routing.

Are three-sided electric fires hard to install?

They need more planning than a simple wall-mounted fire, but they are straightforward for a competent installer when the wall opening, power access, depth and clearances are planned correctly.

Do three-sided electric fires give heat?

Many three-sided electric fires include a heater for local room warmth. The flame effect can often be used without heat, which is ideal for everyday atmosphere.

Are three-sided electric fires expensive to run?

Flame-only mode is usually very economical. As a guide, many Lumo electric fires cost approximately 1c–3c per hour on flame-only mode, depending on the model and your electricity rate. The heater setting costs more because it produces warmth.

Which Lumo fire is best for a three-sided media wall?

The Lumo Cozy, Comfort, Ultra and Odyssey ranges are strong options for three-sided and media wall-style installations. The best choice depends on wall depth, room size and the finished look you want.

What should I check before ordering a three-sided electric fire?

Check wall width, available depth, installation style, opening size, power access, TV position, clearances and whether you want one, two or three sides visible.