Putting an Electric Fireplace in a Fireplace
Transform your old, unused fireplace into a modern, efficient heat source with an electric insert. This guide covers everything you need to know before you buy.
Quick Answer: Yes, you can absolutely put an electric fireplace inside an existing fireplace. This is one of the most popular and straightforward fireplace upgrades available. By using an electric fireplace insert, you can convert a drafty, messy wood-burning fireplace into a clean, efficient, and stylish focal point without the need for a chimney, gas line, or complex construction.
Why Put an Electric Fireplace in Your Existing Fireplace?
Many homeowners have an old fireplace that is more of a liability than an asset. It may be drafty, inefficient, and costly to maintain. Installing an electric insert solves these problems while preserving the character of your original surround and mantel. It's a smart way to choose the right fireplace for your home without a major renovation.
- Cost-Effective Transformation: An electric insert is a fraction of the cost of a gas or wood-burning conversion.
- No Venting Required: Electric fireplaces are ventless, meaning no chimney or flue is needed. This simplifies installation immensely.
- Zone Heating Efficiency: Modern electric inserts are excellent for heating the room you're in, allowing you to lower your central thermostat and save on energy bills.
- Clean and Safe: No ash, no smoke, no creosote, and no carbon monoxide. They are safe for apartments and homes without a chimney.
- Year-Round Enjoyment: You can use the flame effect without heat during warmer months for ambiance.
Pros and Cons of an Electric Fireplace Insert
Advantages
- Easy DIY Installation: Most models are plug-and-play. You just need a standard electrical outlet nearby.
- Zero Emissions: No smoke, odors, or harmful byproducts. Safe for indoor air quality.
- High Efficiency: Nearly 100% of the electricity is converted to heat. Features like thermostats and timers maximize efficiency.
- Low Maintenance: No chimney sweeping, ash removal, or annual service required. Just occasional dusting.
- Versatile Design: Available in many styles, from realistic-looking inserts to modern linear designs.
Disadvantages
- Requires Electricity: You need a nearby outlet. Using an extension cord is not recommended for high-wattage models.
- Heat Output Limitations: While great for zone heating, most models are not designed to heat an entire house. Check the BTU guide to understand capacity.
- Less Authentic: While flame realism has improved dramatically, it's not a real fire. Some people prefer the authentic crackle and smell of wood.
- Fan Noise: The heater uses a blower fan, which produces some noise. Look for models with quiet operation if this is a concern.
Choosing the Right Electric Fireplace Insert
Not all electric inserts are created equal. To ensure a perfect fit and desired performance, consider these key factors before you buy. For a broader overview of options, see our fireplace buying guide.
1. Measure Your Existing Fireplace Opening
This is the most critical step. Measure the width, height, and depth of the inside of your fireplace box. You need an insert that fits comfortably inside with a small gap for airflow. Many inserts are designed to fit standard fireplace dimensions, but always verify.
2. Determine Your Heating Needs
Electric inserts are rated in BTUs (British Thermal Units) or watts. As a general rule, a 1,500-watt (about 5,100 BTU) heater can effectively warm a room up to 400 square feet. For larger spaces, you may need a more powerful unit. Check our guide on how to size a fireplace.
3. Decide on Flame Realism and Features
Modern inserts offer incredibly realistic flames. You can choose from different flame colors, ember beds, and even crackling sound effects. Look for features like a remote control, thermostat, and multiple heat settings. Some models are wall-mountable as well, but for an existing fireplace, an insert style is what you need.
4. Check for Ventless Operation
Ensure the model you choose is a ventless electric fireplace. All electric fireplaces are ventless, but it's good to confirm. This means you do not need to open the damper, which can actually help prevent heat loss.
Installation Guide: Putting an Electric Fireplace in a Fireplace
Installing an electric insert is a simple project for most DIYers. Here's a step-by-step overview.
- Prepare the Fireplace: Clean out any ash, debris, and soot. If you have a gas line, it should be capped by a professional. For a wood-burning fireplace, ensure the damper is closed to prevent drafts. You may want to give your fireplace a makeover before installing the insert.
- Plan for Power: The biggest challenge is often getting electricity to the fireplace. The cleanest solution is to have an electrician install a new outlet inside the firebox. If that's not possible, you may need to run a cord to the nearest existing outlet, ensuring it's not a tripping hazard and doesn't run under rugs or furniture.
- Assemble the Insert: Follow the manufacturer's instructions to attach any legs, leveling feet, or trim kits to your new electric insert.
- Position the Insert: Carefully slide the insert into your fireplace opening. Adjust the leveling feet to ensure it sits straight and stable. The trim kit should cover the gap between the insert and the original fireplace opening.
- Connect and Test: Plug the unit into the outlet. Turn it on, test the flame effects and heater, and ensure the remote control works. Enjoy your new fireplace!
Ready to Upgrade Your Fireplace?
An electric insert is the easiest way to turn a non-functional fireplace into a beautiful and effective heating source. You don't need a contractor or a chimney sweep. You just need the right insert.
Read Our Plug-and-Play Installation GuideElectric Insert vs. Other Conversion Options
If you're considering a change, it helps to see how an electric insert compares to other popular fireplace conversions.
| Feature | Electric Insert | Gas Insert | Wood Insert |
|---|---|---|---|
| Venting Required | No | Yes (typically) | Yes |
| Installation Complexity | Low (DIY-friendly) | High (Professional required) | High (Professional required) |
| Maintenance | Very Low | Low | High (Cleaning, sweeping) |
| Heating Efficiency | High (Zone heating) | High | Medium to High |
| Best For | Easy upgrades, apartments, zone heating | Whole-home supplemental heat | Off-grid heating, ambiance |
If you're also considering a gas conversion, you might be interested in learning about converting a wood-burning fireplace to gas or the cost of converting a wood fireplace to electric.
Maintenance for Your Electric Fireplace Insert
One of the biggest benefits of an electric insert is its low maintenance. Here's what you need to do to keep it running smoothly.
- Dusting: Occasionally dust the exterior and vents with a soft cloth or vacuum brush. For a deeper clean, follow our cleaning electric fireplace guide.
- Inspect the Cord: Periodically check the power cord for any damage.
- Annual Check: A yearly electric fireplace inspection is a good idea to ensure all components are in working order.
Frequently Asked Questions
Can I put an electric fireplace in a wood-burning fireplace?
Yes, this is a very common and ideal use case. The electric insert fits inside the existing firebox, allowing you to keep your mantel and surround. It's a popular way to replace a wood-burning fireplace with an electric one.
Do I need to open the damper for an electric fireplace?
No, you should keep the damper closed. Electric fireplaces do not produce any exhaust or smoke. Keeping the damper closed prevents cold air from coming down the chimney and heat from escaping.
How much does it cost to put an electric fireplace in a fireplace?
The cost of converting a wood fireplace to electric is primarily the cost of the insert itself, which varies by brand and features. If you need a new electrical outlet installed, that is an additional professional cost. Overall, it is one of the most budget-friendly fireplace upgrades.
Will an electric insert fit my existing fireplace?
Most inserts are designed to fit standard fireplace openings. However, you must measure your opening first. There are many sizes available, from small inserts to large, 60-inch ultra-thin models. You can also find inserts specifically for old wood-burning fireplaces.
Can I use an electric fireplace insert as my primary heat source?
An electric insert is excellent for zone heating but is not typically recommended as a sole primary heat source for an entire home. To understand its heating capabilities, you can check our guide on electric fireplaces that heat up to 1000 square feet.
