Guide · Media walls
Media wall electric fires: what to know before you build
Get three things right before the first batten goes up: the fire should be at least as wide as the TV above it, the recess depth must match the fire you choose, and the wiring goes in the wall before the boards do. Plan those and a media wall is a clean two-to-three day build.
Updated 11 July 2026
Size the fire to the wall and the TV
The proportion rule that separates designed walls from assembled ones: the fire sits below the television and should be at least as wide as it, ideally wider. A 50 to 55 inch TV pairs with a fire around 1200 to 1350mm; a 65 inch screen wants 1600mm or more. On the survey we tape the candidate widths onto your actual wall, which settles the size question in thirty seconds.
Wall width matters as much: the fire needs breathing space either side, so a two-metre fire wants a wall comfortably beyond two and a half.
Recess depths decide the build
Every inset fire has a minimum recess: the slim Fire FX Atmos range needs just 140mm, which fits inside a standard stud build, while the deeper British Fires New Forest fires want 300mm, a fuller build-out that buys a deeper, more theatrical flame box. Neither is wrong; they are different budgets of depth, and the wall design follows the fire, never the reverse.
This is why the fire is chosen before the joinery starts. Retrofitting a deeper fire into a shallow wall is a rebuild, not a swap.
The wiring goes in first
A clean media wall has no visible cables, which means everything is planned before boarding: a fused spur for the fire, power and data behind the TV, and any lighting circuits for shelving or niches. The electrical connections are made by a qualified electrician where needed, and the result is a wall with nothing on show but the screen and the flames.
Think about sockets you will want later, sound bars, consoles, and have them wired in now. Opening a finished wall for a forgotten socket is the expensive way to learn this.
What a media wall costs and how long it takes
The fire is the smaller line; the build is the bigger one: studwork, boarding, the recesses, wiring and finishing. Most complete walls we build run two to three days on site, quoted as one written figure after the survey, fire included. Panelling, niches with lighting and floating shelves extend the joinery rather than the concept.
Compared with a woodburner installation it is usually the cheaper and faster route to a focal point, which is exactly why chimney-free modern homes choose it.
Common questions
Can any TV go above an electric fire?
Electric inset fires are designed for TVs above them, with heat vented so it does not cook the screen. We still position to the fire manufacturer instructions and keep the TV within the width of the fire for proportions that look right.
Do media wall fires actually heat the room?
They warm it: typically 1.5kW, the same as a plug-in heater, with the flame picture running independently year round. Treat the heat as comfort on a cool evening, not as the heating plan.
Can you build a media wall on any wall?
Almost any: stud walls are ideal, solid walls take a built-out frame, and chimney breasts can often house the slimmer fires within the existing structure. The survey confirms depth, fixings and the wiring route before we quote.
One-sided, two-sided or three-sided fire?
From the British Fires New Forest 870 upward the fire can wrap a corner or sit in a peninsula wall, seen from two or three sides. It is spectacular in open-plan rooms and it changes the build, so the format is fixed at order, before the joinery.
How much does a complete media wall cost?
It varies with the fire, the wall size and the joinery, so the honest answer is a written quote after the free survey. As a shape: the build usually costs more than the fire, and the whole is typically well under an equivalent woodburner installation.
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