So you’ve decided on a media wall build and now you need to pick the fireplace that goes inside it. This is a different decision to the build itself, and it’s one worth getting right before you pick up a saw, because the fireplace you choose determines the size of the opening, the wiring you need, and how the finished wall actually looks and feels.
Having recently built a media wall with an electric fireplace myself, here’s what I’d tell a mate who was about to buy one.
Buy the Fireplace Before You Build the Wall
This is the one piece of advice I’d push hardest. Buy your fireplace and TV before you start framing anything. Manufacturer spec sheets are sometimes slightly out from the actual product, so physically measuring the unit you’ve bought is the only way to get the opening exactly right. Build to guesswork and you risk a gap round the edges or, worse, a fireplace that doesn’t fit at all.
Hole-in-the-Wall vs Wall-Mounted: Which Style Fits Your Media Wall?
Media wall fireplaces come in two main styles, and this is usually the first decision to make.
Hole-in-the-wall fireplaces sit inside a purpose-built opening, flush with the surrounding structure. This is the style I installed, and it gives a clean, built-in look where the fireplace reads as part of the wall rather than an addition to it.

Wall-mounted fireplaces are fixed to the wall with the media wall structure built around and over them. These come in 1, 2, or 3-sided configurations, sit well under a wall-mounted TV, and can be set flush for a flat finish. They tend to give a slightly more contemporary feel than a hole-in-the-wall unit.
Neither style is objectively better, it comes down to the look you’re after and how much you want the fireplace to disappear into the structure versus stand out as a feature. Decide on style first, because it affects the framing dimensions before you get to wattage, controls, or finish.
What to Check Before You Buy
Once you’ve settled on a style, these are the things that actually matter when comparing models.
Size and placement
Measure the space you’re planning to build into, and check the manufacturer’s clearance requirements from walls and furniture. Don’t assume the listed dimensions are exact, see the point above about buying first.

Heat output
Check the wattage and BTU rating against the room you’re heating, not just the wall. As a rough guide, 1,000 watts will heat around 400 square feet, but always check the specific heating area the manufacturer quotes for that model. I fitted a 2.4kW unit, which was the right output for the size of room it’s heating.
Features worth having
Remote control, a thermostat, and a timer make day-to-day use far more convenient. Some models add crackling sound effects for extra realism, which is a nice touch but not essential.
Safety features
Overheat protection, a cool-touch exterior, and a child lock are worth checking for, especially if the fireplace will be at floor or low-wall height in a family home.
Energy efficiency
Look at the running cost as well as the purchase price. An eco-mode or adjustable heat settings can make a real difference to what it costs to run day to day.
Design and finish
Realistic flame effects, adjustable brightness, and colour options all vary a lot between models. If you want to match your fireplace to your decor rather than the other way round, look at units with paintable or customisable surrounds.
Installation
Some units are plug-and-play, others need hardwiring or professional installation. Work out which one you’ve got before you plan your electrics, not after the frame is built.
Brand, warranty and reviews
A comprehensive warranty and genuine customer reviews are worth more than a spec sheet. Check real-world feedback on heat performance and reliability before committing.
My Own Setup

For my build, I went with a hole-in-the-wall style, 2.4kW electric fireplace with remote control and a thermostat, in a fairly large room. It’s been reliable, heats the room properly, and the flush finish was exactly the look I wanted for the wall. If you’re after a similar built-in look, that combination is a solid starting point, but always size the wattage to your own room rather than copying mine directly.
Final Thoughts
Choosing the fireplace before you build is the single biggest thing that will make your project go smoothly. Once you’ve picked your style, wattage, and features, the rest of the build process becomes a lot more straightforward, because you’re building around a known, measured unit instead of guessing.


