Fireplace inserts provide a warm and inviting atmosphere to any home. They are also a great way to increase the value of your property. If you are thinking about installing a fireplace insert in your home, you will first need to measure the opening to make sure that you get the right size. In this comprehensive guide, we will answer common questions about how to measure for a fireplace insert and provide useful tips on what to look for when making your purchase.
How to Measure for a Fireplace Insert
It’s important to get the measurements right when you’re installing a fireplace insert. If the insert is too big, it won’t fit properly and could be a fire hazard. If it’s too small, it won’t heat your home effectively. Here’s a step-by-step guide to measuring for a fireplace insert:
Measure the width of the opening at the widest point. This is usually the back wall of the firebox.
Measure the height of the opening from floor to lintel or mantel shelf.
Measure the depth of the firebox from front to back. The depth will determine how far into the room the insert can protrude.
Now that you have these measurements, you can start shopping for inserts! Be sure to bring your measurements with you when you’re looking at inserts, so you can be sure to find one that fits properly.
The Proper Way to Measure Dimensions of a Fireplace
After you’ve decided on the type of fireplace insert that will best suit your needs, it’s time to focus on the measurements. The dimensions of a fireplace insert are critical because they determine both the size of the opening needed in the fireplace as well as how much heat the unit can generate.
You’ll also need to take into account the size of the flue collar, which is the part of the insert that attaches to the chimney. The standard sizes for flue collars are six inches, seven inches, and eight inches. To get an accurate measurement of your fireplace insert, it’s best to consult with a professional who can take all these factors into consideration.
Now that you know how to measure the fireplace insert, you can start shopping for the perfect one for your home! Be sure to check out our wide selection of inserts from top brands like Regency and Napoleon. We’re sure you’ll find one that fits both your style and budget.
Getting Your Fireplace Dimensions
The first step in measuring for your new fireplace insert is to get the dimensions of your existing fireplace. You’ll need to know the width, height, and depth of your fireplace opening. These measurements will be critical in helping you select the right size insert for your home.
There are a few different ways that you can go about getting these measurements. One option is to use a tape measure and take the measurements yourself. Another option is to ask a professional contractor to come and take the measurements for you. Either way, it’s important that you have accurate numbers so that you can purchase the correct size insert.
Once you have the dimensions of your fireplace opening, you’ll need to decide what type of insert you want. There are two main types of inserts: wood-burning and gas.
Gas fireplace inserts are another popular option. These inserts tend to be smaller than wood-burning models, but they can still provide plenty of heat for your home. Gas inserts are also easier to install and typically require less maintenance than wood-burning models.
Once you’ve decided on the type of insert that you want, it’s time to start measuring for it. The first thing you’ll need to do is measure the width of the fireplace opening. Make sure that the insert is at least as wide as your fireplace opening. Otherwise, it won’t fit properly and could cause damage to your home.
Next, measure the height of your fireplace opening. Again, make sure that the insert is at least as tall as your fireplace opening. If it’s not, then it could protrude from the opening and be a safety hazard.
Finally, you’ll need to measure the depth of your fireplace opening. This measurement is critical because it will determine how far back the insert can protrude into your home. You don’t want it to protrude too far and create a fire hazard, but you also don’t want it to be too shallow and not provide enough heat.
Once you have all of these measurements, you should be able to find the perfect size insert for your fireplace. Just remember to take your time and measure carefully so that you get an accurate measurement.
What Heating Needs Does Your Room Require?
Before you purchase a fireplace insert, it’s important to know how much heat your room needs. Depending on the size of your room and the climate, you’ll need to choose an insert that produces enough BTUs (British Thermal Units) to comfortably heat the space.
To calculate the BTUs needed to heat your room, use this formula:
BTUs = Length x Width x Height x 0.133
For example, if your room is 20 feet long by 20 feet wide with an eight-foot ceiling, you would need approximately 53,333 BTUs to adequately heat the space. Once you know how many BTUs your room needs, select a fireplace insert that produces at least that amount of heat.
If you live in an area with a mild climate, you may be able to get away with a lower BTU output. But if you live in a colder climate or your home is particularly drafty, you’ll need an insert that produces more BTUs.
How to Measure a Fireplace Opening
The first step is to measure the width of the fireplace opening at its widest point. Write this number down. Next, measure the height of the fireplace opening. Record this number as well. Finally, measure the depth of your fireplace by measuring straight back from the front edge of your fireplace opening until you hit a wall or another object. Make a note of this measurement too. With these three numbers in hand, you’ll be able to select an insert that will fit perfectly in your fireplace!
There are a few other things to keep in mind when measuring for an insert:
- Make sure to measure the opening at its widest point, from brick to brick or from the edge of one side of the firebox to the other.
- The height and depth measurements should also be taken from brick to brick or from the top of one side of the firebox to the other.
- If your fireplace has a mantel, you’ll need to take that into account when selecting an insert. Most inserts are designed to fit flush with the face of the fireplace, so a mantel will need to be removed before installation.
Making Sure Your Measurements are Accurate
You’ll need a tape measure, and it’s always best to have someone else help you with this part. Measure the width of the fireplace opening at the widest point, and then measure the height from the top of the fireplace opening to the hearth (the part of the floor in front of the fireplace).
Remember, most inserts are designed to be installed flush with the face of the fireplace, so you’ll want to ensure that there’s enough space around your fireplace insert for proper installation. 
Gas Inserts for Existing Fireplaces
Now that you know how to measure for a gas insert, it’s time to choose the perfect one for your home. There are a few factors that you’ll want to consider when making your decision such as style, BTU output, and price. But with so many great options on the market, you’re sure to find the perfect gas insert.
Wood Burning Fireplace Inserts
Wood-burning fireplace inserts come in a variety of shapes and sizes.
There are two main types: pellet and log.
Pellet inserts are more efficient than log inserts because they burn cleaner and produce less ash. Pellet inserts come with a variety of features, such as automatic ignition and self-cleaning systems.
Log inserts are less expensive than pellet inserts, but they are not as efficient. Log inserts also require more maintenance than pellet inserts because you have to clean out the ashes on a regular basis.
Once you have chosen the right insert for your fireplace, you need to install it properly. Installing a wood-burning fireplace insert is not a do-it-yourself project. You should hire a professional to install your insert to ensure that it is done correctly and that your warranty will be valid.
Typical Fireplace Insert Sizing
Most fireplace inserts will be either 27″ or 36″ wide. The depth of the insert will be around 12-13″. The height of the insert will be determined by the model, but they are typically shorter than a traditional fireplace.
To get started, take some measurements. Measure the width, depth, and height of the opening. Once you have those measurements, you can start shopping for an insert that will fit your space.
Ensure that the insert is properly sized for your space. Second, ensure that the insert has the right BTU output for your needs. And finally, make sure that the insert is compatible with your home’s heating system. 
Installing Fireplace Inserts
If you’re looking to install a fireplace insert, there are a few things to remember.
One of the first things you need to do is take measurements of your fireplace opening. This will ensure that the insert fits properly. Measure the depth of the fireplace so that you can choose an insert that’s the right size. Keep in mind that most inserts are designed to fit flush with the back wall of your fireplace.
Benefits of Fireplace Inserts
Homeowners choose to install fireplace inserts for a variety of reasons. Some people want to improve the appearance of their fireplace, while others want to increase the efficiency of their unit.
Fireplace inserts are available in a wide range of styles, so it is easy to find one that will complement the look of your home. Many models also come with blowers that help circulate heat, making them more efficient than traditional fireplaces. 
What size insert do I need for my fireplace?
The size of the insert will be determined by the size of the fireplace.
If you have a prefabricated or zero-clearance fireplace, measure the front width and back width of the firebox. The depth will be measured from the back wall to the front edge of the firebox opening. The height will be measured from the hearth to the top of the firebox opening. 
It is important to get accurate measurements because an incorrectly sized insert can cause problems with installation and operation. If you are unsure about taking these measurements, you can always ask a professional for help.
How do you measure for a replacement fireplace?
If your fireplace is in need of a facelift, you may be considering a replacement insert. But before you can install a new insert, you’ll need to take some measurements. In this comprehensive guide, we’ll show you how to measure for a replacement fireplace insert. We’ll also provide some useful tips to make sure your installation goes smoothly.
To measure for a replacement fireplace insert, you’ll need to take four measurements: the width of the opening, the depth of the firebox opening, the height of the firebox opening, and the back wall to front wall distance. Let’s take a closer look at each measurement:
The width of the firebox opening is perhaps the most important measurement when it comes to choosing a replacement insert. This is because the width of the insert must be smaller than the width of the firebox opening. Otherwise, the insert will not fit properly. To measure the width of the opening, simply use a tape measure to determine the distance between the two side walls of the firebox.
The depth of the firebox opening is also an important measurement. This is because you’ll need to ensure that your chosen insert has enough depth to fit snugly into the firebox.
The height of your firebox opening is another critical measurement. This is because most inserts are designed to fit snugly into the firebox. 
Finally, you’ll need to take a measurement from the back wall to the front wall.
What are the measurements of a fireplace?
A fireplace is typically made up of three main parts: the firebox, the surround, and the hearth. The firebox is where the actual fire burns and is usually made of brick or stone. The surround is the frame that goes around the firebox and is usually made of wood or metal. The hearth is the floor of the fireplace and is usually made of stone or brick.
Take three measurements: the width of the firebox, the height of the firebox, and the depth of the fireplace.
The width of the firebox is measured from one side to the other at the widest point. The height of the firebox is measured from top to bottom at the tallest point. The depth of the fireplace is measured from the back wall to the front of the firebox.
Fireplace inserts come in a variety of sizes, so it is important to choose one that will fit your fireplace properly.
There are a few things to consider when choosing an insert for your fireplace. First, make sure that the insert is tall enough to extend past the height of the firebox. This will ensure that smoke does not escape into your home through the opening at the top of the firebox. Second, make sure that the insert is wide enough to extend past the width of the firebox by at least 2 inches. This will ensure that the insert does not block any of the openings on the side of the firebox. Finally, make sure that the insert is deep enough to extend past the depth of the fireplace by 2 inches. This will ensure that there is enough space for air to circulate around the insert and keep it from overheating.
How wide is a 42-inch fireplace?
The average 42-inch fireplace is about 3.8 inches wide. However, the width of a fireplace can vary depending on the style and design of the insert. For example, a traditional wood-burning fireplace may be slightly wider than a gas insert. 
To get an accurate measurement of your fireplace’s width, measure the inside of the firebox from one side to the other. If you’re unsure of the size of your firebox, take a look at our guide on how to measure a fireplace.
When measuring for a new insert, it’s important to get an accurate measurement of both the width and height of your firebox. The width will determine what size insert you need, while the height will help ensure that your insert will fit snugly into your fireplace.
If you’re looking for a new insert for your 42-inch fireplace, we’ve got a great selection of both gas and wood-burning inserts to choose from. Just use our handy search filters to narrow down your options by width, height, and style.
Useful Video: How to Measure for your Fireplace Insert
Now that you know how to measure the fireplace insert, you can confidently choose the right size for your home. Keep in mind that the measurements should be taken carefully to ensure a perfect fit. With a little bit of planning and effort, you’ll be able to find the perfect fireplace insert for your home. Thanks for reading!