You Don’t Have a Fireplace Insert: Clearing Up the Confusion
At Magic Touch Mechanical and The Fire Place by Magic Touch, we frequently meet homeowners who are uncertain about different fireplace types. Many mistakenly believe they have a fireplace insert, while they actually own a built-in or zero-clearance fireplace. This common misunderstanding often leads to frustration when they realize their planned budget doesn’t cover unexpected costs. Let’s explore the key differences between fireplace types, why it matters, and what’s involved in replacing a fireplace.
What’s a Fireplace Insert?
A fireplace insert is a pre-assembled unit designed to fit into an existing masonry fireplace. It’s engineered to convert a brick wood-burning chimney into a gas fireplace. These brick chimneys, also called “site-built chimneys,” were usually originally wood-burning. Homeowners often choose inserts to enhance the efficiency of their open wood-burning fireplaces.
PRO TIP: If your home was built after December 31, 1998, in Maricopa County, you likely don’t have a fireplace insert. Wood-burning fireplaces were prohibited in new homes after that date.
Key facts about fireplace inserts:
- Inserts are only compatible with masonry fireplaces that have an existing firebox.
- They improve efficiency without requiring major renovations.
- Inserts are a cost-effective way to modernize older fireplaces.
What Is a Built-In Fireplace?
A built-in fireplace, also called a zero-clearance fireplace, is a factory-built unit installed directly against combustible materials. Built-in fireplaces are commonly found in newer homes and remodeling projects.
How built-ins differ from inserts:
- Built-in fireplaces don’t need an existing masonry firebox.
- Installation involves framing, drywall, and often replacing the entire vent system.

Builtin aka Zero Clearance Fireplace being installed
What Is a Direct Vent Fireplace?
A direct vent fireplace is an efficient, modern fireplace that uses sealed combustion. It draws air from outside and expels exhaust through a dual-pipe system. These fireplaces are highly efficient and safer than traditional models.
Direct vent fireplace features:
- Sealed combustion: Maintains indoor air quality and enhances safety.
- Custom venting: Requires manufacturer-specified vent systems for proper function and safety.
- Installation requirements: Walls inside and outside often need to be opened for venting.
- Power needs: Most direct vent models need new electrical circuits for fans and other features.

A peek behind the wall. To replace this direct vent fireplace, everything behind the wall inside and outside must be removed and replaced, then resealed and refinished.
Misconceptions About Fireplace Inserts
Many homeowners incorrectly assume replacing a fireplace insert is simple and low-cost. However, replacing built-in and direct vent fireplaces often requires extensive work that wasn’t anticipated during budgeting.
It’s understandable why some people think it’s easy. The term “insert” suggests simplicity—just “insert” it and presto, fire! Unfortunately, the fireplace industry hasn’t done enough to educate the public about the differences between gas fireplaces and gas inserts.
Replacement usually involves:
- Demolition: Removing the old fireplace and surrounding materials.
- Framing: Building a new opening for the unit.
- Venting: Installing manufacturer-approved vent systems.
- Electrical work: Adding circuits for modern features.
- Gas/Propane piping: Adjustments are often needed even if gas is already run.
- Clearance Planning: Manufacturers’ specific clearance requirements must be met.
- Finishes: Installing new surrounds, flooring (if the hearth changes), and even ceiling finishes depending on venting.
You can see how costs can add up quickly. Replacements can often exceed tens of thousands of dollars, which is more than most homeowners anticipate.
Affordable and Modern Fireplace Options
For homeowners with smaller budgets or those wanting contemporary designs, electric fireplaces are a great alternative. Converting a gas fireplace to an electric one can significantly reduce costs.
Replace Your Gas Fireplace with an Electric Fireplace:
- Gas fireplaces can be replaced with electric models. This is accomplished by disabling the gas, capping the supply, and sealing the chimney.
- Framing and drywall can update the space.
- Budget benefits: Electric fireplaces are typically more affordable to install and maintain.
- Year-round use: Electric models can operate with or without heat.
Why Knowing the Difference Matters
Understanding your fireplace type can save time and money. Here’s a breakdown:
- Fireplace inserts work for masonry (brick) fireplaces.
- Built-in fireplaces require framing, venting, and more.
- Direct vent fireplaces need custom venting systems and structural work.
A Fun Analogy
Replacing a built-in or direct vent fireplace with an insert is like trying to fit a square peg into a round hole. It sounds simple, but without proper adjustments, it’s impossible.
Costs and Benefits of Fireplace Replacement
Replacing a fireplace is a significant investment, but the benefits often outweigh the costs. You’ll enjoy:
- Increased energy efficiency.
- A remodeled look for a fraction of the cost of a full renovation.
- Easy operation with remote controls, Wi-Fi apps, and smart home systems.
- Modern safety features for added peace of mind.
- A stylish, updated design that adds value to your home.
Conclusion
Replacing a fireplace isn’t always straightforward, but understanding the differences between fireplace types can make the process much smoother. Whether you need a fireplace insert, built-in fireplace, or direct vent system, we’re here to help.
Contact Magic Touch Mechanical and The Fire Place by Magic Touch today to find the perfect fireplace solution. Let’s turn that square peg into the perfect fit for your home!

Author: Rich Morgan, CEO Magic Touch Mechanical & The Fire Place