All About Electric Fireplace Inserts

If you want to upgrade your home’s ambiance while keeping it energy-efficient, a fireplace electric insert may be exactly what you need. These electric inserts can breathe new life into old fireplaces, providing heat, safety, and a beautiful visual experience without the hassle of a traditional wood-burning hearth. They transform existing hearths into a clean, efficient, and visually appealing electric fireplace — without venting, fuel storage, or complex installation. 

This guide explains what an electric fireplace insert is, how it works, how to choose the best electric fireplace insert, and which features matter most for performance, realism, and long-term value.

What is a Fireplace Electric Insert?

A fireplace electric insert is a self-contained electric heating and flame unit designed to fit inside an existing fireplace opening. Unlike traditional fireplaces, it does not burn wood or gas. Instead, it uses electricity to generate heat and LED-based flame effects that mimic the look of a real fire.

They’re an easy-to-install solution for homeowners who want to repurpose a non-functioning or inefficient traditional fireplace.

Electric fireplace inserts are commonly installed in:

• Existing masonry fireplaces
• Old wood-burning fireplaces
• Non-working or decommissioned gas fireplaces
• Custom fireplace openings or framed wall cavities

Because they require no chimney or vent, electric inserts are among the easiest and safest fireplace solutions available.

Benefits of a Fireplace Electric Insert

1. Easy Installation

Electric inserts are among the simplest heating options to install. Unlike gas fireplaces, which may require costly venting or modifications to your existing setup, an electric insert can be set up by just plugging it in. This makes it a DIY-friendly solution, especially for those who don’t want to hire a contractor.

2. Energy Efficiency

One of the major advantages of a fireplace electric insert is energy efficiency. Unlike traditional wood fireplaces, which often lose heat through the chimney, electric inserts convert almost all of the electricity they use into heat. This means less waste. Many electric inserts even come with thermostat controls, allowing you to manage the temperature more precisely.

3. Safety

If safety is a priority — particularly in homes with children or pets — then an electric insert is a great choice. Unlike wood or gas fireplaces, they do not produce sparks, toxic fumes, or excessive heat on their surface. The heat is contained and can even be turned off if you’re just interested in enjoying the flickering flame effect.

4. Zone Heating

Electric inserts typically heat rooms up to 400–1,000 square feet, depending on the wattage and blower design. This makes them ideal for zone heating: warming the room you use most without heating the entire house, resulting in utility savings.

5. Low Maintenance

Unlike wood-burning fireplaces, electric inserts require virtually no maintenance. You don’t need to worry about chopping wood, cleaning up ash, or arranging annual chimney cleanings. There is no ash, soot, or creosote. Maintenance is limited to occasional dusting and basic electrical checks. 

6. Year-Round Use

Most models allow flame effects to operate independently of the heater, providing an elegant and cozy ambiance even during warmer months.

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Operating Costs and Energy Efficiency

Electric fireplace inserts are cost-effective to operate compared to gas or wood-burning fireplaces.

• Average electricity usage: $0.12–$0.20 per hour on high heat (depending on local rates)
• Flame-only mode costs only pennies per hour

Because they provide zone heating, many homeowners use inserts to reduce reliance on central heating systems.

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Choosing the Right Fireplace Electric Insert

When selecting an electric fireplace insert, you’ll need to consider a few factors:

1. Size and Fit

Measure your existing fireplace before purchasing an electric insert. The insert must fit snugly within the dimensions of your fireplace cavity for a seamless appearance. Be sure to account for depth, height, and width to ensure a proper fit.

2. Heat Output

Most inserts operate at 1,400–1,500 watts on high heat, and provide between 4,800–5,100 BTUs. This is suitable for zone heating rather than whole-home heating.

3. Style and Aesthetics

Electric inserts come in a wide range of styles to match your home decor. From sleek and modern designs to classic, brick-style inserts, you can find an option that complements your living space. Also, many electric inserts include adjustable flame effects—brightness, color, and speed—so you can customize the mood to fit any occasion.

4. Flame Technology and Realism

Look for additional features such as remote control, timers, adjustable flame brightness, or even sound effects to mimic the crackle of a real fire. These extras can make a big difference in how much you enjoy your new fireplace electric insert.

Newer units also multi-color flame options and realistic log sets with glowing ember effects.

5. Thermostat and Controls

High-end models include extra features for convenience, such as:

• Built-in thermostats
• Remote control operation
• Programmable timers
• Smart-home or Wi‑Fi compatibility (select models)

6. Build Quality and Warranty

Metal fireboxes, high-grade glass, and long manufacturer warranties indicate a reliable, long-term investment. At Total Home Supply, we carry only the highest quality units from reliable manufacturers.

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Featured Fireplace Electric Inserts

Entry level:

Dimplex RLG20 Revillusion 20″ Plug-In Electric Log Set

This 20″ electric fireplace log set simply plugs in, no venting required, to a standard 120 volt household outlet.

Some features include Revillusion Flame Technology for larger, brighter and more random flames appearing through and from within the logs. The Mirage Flame Panel is a better option than a mirror. It is a partially frosted acrylic panel that shows only the flames and no reflections. Because this is a logset insert, you get a ThruView full depth view straight to the back of your fireplace. 

It comes with everything you need including a multi-function remote. An optional ember mat is available separately

Intermediate model:

Simplifire SF-INS30 30″ Electric Fireplace Insert

This 30″ electric fireplace insert features a traditional wood-burning fireplace design, and nice expanded viewing area at 27″ x 16.25″.

It offers low and high settings which are thermostat adjustable – the temperature adjusts the heater’s response to the ambient temperature conditions in the room 60°F – 82°F.  It also has a timer function up to 9 hours in 1 hour increments. Additionally the flame adjustment offers four flame effects. 

The inside features a detailed masonry style design and a log set. It includes a front frame for an appealing, finished look without adding a surround.

Top end model:

Dimplex CDFI500-PRO Opti-Myst Pro 500 20″ Built-In Electric Cassette

The Opti-Myst cassette makes flames with water and vapor, creating a heatless, dramatically beautiful focal point in any space. It measures 20″ long and can be combined with additional units* for a fireplace that is customized to your size. It can be used as a single sided, corner, three-sided or see-through 360° view fireplace. 

The Opti-Myst Flame effect utilizes ultrasonic technology to produce a fine mist that creates the illusion of flames and smoke. It also offers you the ability to customize the flame width and pattern as well as the flame volume. The pattern can be adjusted with movable spacers and slots. The water reservoir can be filled manually with enough water to give you a full 8 hours of continuous flame.

Frequently Asked Questions About Electric Inserts

1. How much electricity does an electric fireplace insert use?

Typically, an electric fireplace insert uses between 1,400 and 1,500 watts when heating. However, when only using the flame effect, electricity consumption is minimal, making it an energy-efficient way to add ambiance without significant power costs.

2. Can I use an electric insert year-round?

Yes! Electric fireplace inserts offer the advantage of using the flame effect independently of the heat function. This means you can enjoy the cozy ambiance of a fire even in the summer without overheating your home.

3. Are electric inserts better than gas fireplaces?

This depends on what you’re looking for. Electric inserts are great for easy installation, lower costs, and safety, while gas fireplaces may be preferable for those looking for a more traditional feel with slightly higher heat output. Electric is often a safer and more versatile option for homes with small children or for those prioritizing energy efficiency.

Final Thoughts

If you’re ready to enhance your home’s comfort and aesthetics with minimal effort, a fireplace electric insert may be the answer. It’s a convenient and cost-effective way to add warmth and character to any living space. Whether you prioritize energy efficiency, style, or ease of use, electric inserts deliver on all fronts.

Make sure to take the time to evaluate your options carefully. With the right electric fireplace insert, you can transform your living area into a warm and inviting oasis—perfect for family gatherings or just curling up with a good book.