How to Measure for Electric Fireplace Insert? Compilate Process

Knowing how to measure for electric fireplace insert is essential to get the right fireplace for your home. You won’t be able to buy an insert that fits perfectly if you don’t do the measuring.

Electric fireplace inserts are measured based on the dimensions of the fireplace opening. So, you must assess the opening height, width, and depth accurately to get a proper measurement for the fireplace insert. Still, confused? No worries, as we’re going to provide a more in-depth explanation.

Table of Contents

The Measuring Process

Remember not to be hasty while measuring, because you’re looking for accuracy. If you fail to measure everything accurately, your insert isn’t going to fit. So, it’s quite important.

1. Measuring the Height

Let’s start with the height of the opening. Grab a measuring tape and take note of the height from the back. Also, from the opening and the lintel, if there is one. If your existing fireplace has an arched opening, you should take measurements of both the highest and the lowest points.

2. Measuring the Width

Next, you’re going to measure the width from the opening as well as the back using a measuring tape. If you’re accurate enough, you will find that square fireboxes have similar widths at all points.

3. Measuring the Depth

Congratulations, you’re almost done! All you have to do now is measure the depth of the opening, which is essentially the area from the face of the opening to all the way back. That’s it!

Electric Fireplace Insert Buying Guide

Here is a couple of things you should know before buying an electric fireplace insert:



You have a choice between log set inserts, plug-in inserts, and built-in inserts. Each comes with its own advantages and disadvantages. So, choose whichever you like the most.


Fireplace inserts are available in various sizes, ranging from small to large. You should choose the size based on your fireplace’s opening.


The installation process may be easy or complicated, depending on the type of fireplace insert you get. For instance, log set inserts are the easiest to install, while built-in inserts are significantly more complicated.


Consider the inserts’ features before buying to choose the most suitable one for you. Features like optional fans, remote controls, etc., make them more worthwhile.

Average Cost

The initial cost of a fireplace is only a fraction of the total cost because you will have to do a bit more spending on installation, maintenance, and power later.


  • Requires low maintenance
  • Easy to set up and use
  • Offers excellent heating
  • Suitable for apartments


  • Doesn’t produce real flames


Now that you know how to measure for an electric fireplace insert, you’re unlikely to end up with one that won’t fit your fireplace opening. Just make sure to be as accurate as you can when you measure. This will give you the best results.