How to size an electric fireplace?

To size an electric fireplace accurately, you must measure the total square footage of the room and the available wall space. A standard design rule is to choose a unit that occupies roughly two-thirds of the width of the wall or mantel where it will be anchored. This ensures the appliance provides balanced visual weight and adequate supplemental heat without overwhelming your living space.

Should the electric fireplace be the same size as the TV?

No, your electric fireplace should ideally be wider than the television mounted above it to create a visually stable foundation. A good standard is to select a fireplace that extends at least six to eight inches past the edges of your TV screen. If they are the exact same width, the overall wall setup will look top-heavy and poorly balanced.

Is it okay to run an electric fireplace all day?

Yes, it is perfectly safe to run an electric fireplace all day because they do not produce real combustion, carbon monoxide, or toxic fumes. Most modern units are equipped with automatic overheat protection sensors that safely shut the system down if internal temperatures spike. However, leaving the heater on continuously will noticeably increase your utility bill, so utilizing a built-in thermostat is highly recommended.

Does it take a lot of electricity to run an electric fireplace?

Operating just the visual flame effect uses a negligible amount of electricity, typically consuming less power than a standard LED light bulb. However, turning on the heater draws roughly 1,500 watts, which is equivalent to running a traditional portable space heater. This heating mode can add roughly 15 to 30 cents per hour to your energy bill depending on your local electricity rates.

How do I clean the inside of my electric fireplace?

Always turn off the power, unplug the appliance, and let it cool completely before carefully removing the front glass panel. Use a vacuum equipped with a soft brush attachment to gently lift dust and pet dander from the internal log set and heater vents. Finally, wipe the interior glass surface with a microfiber cloth and an ammonia-free cleaner before securing the panel back into place.

Electric Fireplaces

Electric Fireplaces deliver realistic flame visualization and supplemental zone heating from any standard household outlet, with no venting, no gas line, and no chimney required. Browse our fireplaces catalog to compare electric models alongside gas and wood-burning options for your home.

The Complete Guide to Choosing an Electric Fireplace: Format, Output, and Installation

Electric fireplaces give you more placement freedom than any other hearth format because you are not constrained by venting pathways, gas supply lines, or chimney geometry. The flame effect runs independently of the heater in most models, so you get the visual on a mild evening without adding heat to the room. Before you pick a model, the most important decision is which format fits your room and your walls.

Before locking in an electric fireplace, compare the full range of installation formats to find the right fit:

No framing bay or construction work: You can bracket a wall mount and floating electric fireplaces directly onto any finished wall surface, powered from a nearby outlet, with no cavity or structural work required.
Existing masonry or prefab firebox: You can slide an electric fireplace insert directly into the opening. It keeps your existing mantel and surround exactly as they are.
Full surround with no built-in work: An electric fireplace with mantel is a freestanding furniture console that arrives complete with shelf and surround, no wall modification needed.
New construction or renovation: Built-in electric fireplaces install flush with the wall inside a purpose-built framing bay for a clean architectural look.
Covered patio or outdoor space: Outdoor electric fireplaces carry weather-rated construction for semi-enclosed environments where a standard indoor unit is not listed for use.

For the complete comparison across all fuel types, browse our Fireplaces catalog.

The Flame Effect: What to Look for at Your Viewing Distance

The flame technology determines how convincing the visual looks from where you actually sit. LED-backlit ember beds create a glow effect and work well in smaller rooms viewed from 5 to 8 feet. Optiflame reflective systems use a rotating wheel projecting onto a mirror surface, creating movement and depth at close range.

3D water vapor systems produce actual water vapor illuminated by LED arrays, and that mist holds up realistically at 10 to 15 feet across a large living room. If your primary viewing position is across an open-plan space, the vapor system makes a noticeable difference.

Heating Output: Matching Wattage to Your Room Size

A standard 120V electric fireplace runs at 1,500 watts, which works out to roughly 5,100 BTU per hour. That covers supplemental warmth in 400 to 500 square feet of well-insulated space. If your room is larger than that, or if it has high ceilings, poor insulation, or a lot of window area, a 240V model rated at 2,000 to 5,000 watts delivers substantially more output. A 240V model needs a dedicated circuit installed by an electrician before the unit arrives. Most 120V models plug into any standard 15-amp household outlet with no upgrade required.

Running the Flame Without the Heater

One of the most practical things about electric fireplaces is that you can run the flame visual while the heater is completely off. This matters more than it sounds. You get the hearth ambiance on a spring evening, in a warm room, or in a room where you simply do not want to add heat. Flame-only mode draws roughly 30 to 60 watts, which costs less than a cent per hour to run. No gas fireplace can separate the visual from the heat output the way an electric model can.

The Outlet Question Before You Buy

Knowing where your outlet is before you order prevents the most common installation headache with electric fireplaces. Most wall mount and built-in electric fireplaces have a power cord that exits from the bottom, rear, or side of the unit. If your nearest outlet is not within cord reach of your planned mounting position, the options are to have an electrician add one at the right location or to route the cord through a surface-mount cord channel. Running the cord behind drywall without a listed in-wall kit is a code violation under NEC ANSI/NFPA 70, so plan the outlet before the unit ships.

Find the Right Electric Fireplace for Your Home

Whether you are choosing between a wall mount and a built-in for a renovation, sizing the right wattage for your room, or figuring out the flame technology that holds up at your viewing distance, our NFI certified experts can walk you through every specification and code requirement. Call us anytime, and enjoy free shipping on all qualifying orders over $99.

Frequently Asked Questions about Electric Fireplaces

How to size an electric fireplace?

To size an electric fireplace accurately, you must measure the total square footage of the room and the available wall space. A standard design rule is to choose a unit that occupies roughly two-thirds of the width of the wall or mantel where it will be anchored. This ensures the appliance provides balanced visual weight and adequate supplemental heat without overwhelming your living space.
Should the electric fireplace be the same size as the TV?

No, your electric fireplace should ideally be wider than the television mounted above it to create a visually stable foundation. A good standard is to select a fireplace that extends at least six to eight inches past the edges of your TV screen. If they are the exact same width, the overall wall setup will look top-heavy and poorly balanced.
Is it okay to run an electric fireplace all day?

Yes, it is perfectly safe to run an electric fireplace all day because they do not produce real combustion, carbon monoxide, or toxic fumes. Most modern units are equipped with automatic overheat protection sensors that safely shut the system down if internal temperatures spike. However, leaving the heater on continuously will noticeably increase your utility bill, so utilizing a built-in thermostat is highly recommended.
Does it take a lot of electricity to run an electric fireplace?

Operating just the visual flame effect uses a negligible amount of electricity, typically consuming less power than a standard LED light bulb. However, turning on the heater draws roughly 1,500 watts, which is equivalent to running a traditional portable space heater. This heating mode can add roughly 15 to 30 cents per hour to your energy bill depending on your local electricity rates.
How do I clean the inside of my electric fireplace?

Always turn off the power, unplug the appliance, and let it cool completely before carefully removing the front glass panel. Use a vacuum equipped with a soft brush attachment to gently lift dust and pet dander from the internal log set and heater vents. Finally, wipe the interior glass surface with a microfiber cloth and an ammonia-free cleaner before securing the panel back into place.