Electric Fireplace Buying Guide: 10 Features You Need to Know Before Purchasing

Last reviewed: September 8, 2026

Ten features separate an electric fireplace that fits a room from one that causes problems after delivery: safety listing, heat output, installation type, wall depth, circuit requirements, running cost, flame technology, controls, size, and maintenance. Most buying mistakes trace back to skipping one of them, usually the wall depth or the circuit.

Safety certifications and built-in protections

Electric fireplace safety comes down to an independent safety listing and the automatic shutoffs built into the unit. The listing is the one to check first, because it is verifiable and marketing copy is not.

Look for a UL, ETL, or CSA mark. Fixed and built-in units are tested to UL 2021, the standard covering fixed and location-dedicated electric room heaters. Portable and wall-hung units fall under UL 1278, which covers movable and wall- or ceiling-hung electric room heaters. An ETL mark means an independent lab tested the unit against that same standard, so ETL and UL carry equal weight.

Three built-in protections matter in practice: overheat protection that cuts power above a threshold, cool-touch glass that keeps the front surface safe with young children, and tip-over shutoff, which applies to freestanding units rather than built-ins. Our electric fireplace safety guide covers clearances and what a listing does not address.

Heat output

Heat output appears on every manufacturer spec sheet in watts and BTU per hour, and it varies more between models than most shoppers expect. Check the figure for the specific model rather than assuming a category standard.

Two numbers matter together. Wattage tells you what the unit draws and therefore what circuit it needs. BTU per hour tells you how much heat it produces. Many plug-in units run at 1,500 watts, which is roughly 5,100 BTU per hour, and higher-output models exist that may require a different circuit or voltage than a standard wall outlet provides.

Electric fireplaces are supplemental heaters. Sizing one as the only heat source in a large room usually disappoints regardless of brand. Our room-by-room heating guide covers what to expect by room size.

Installation type

Installation type determines the wall work, the electrical work, and the finished look, so it should be decided before brand or model. There are four options and they are not interchangeable.

Wall-mounted units hang on the surface using a bracket, with no framing and usually a standard outlet. Built-in and recessed units sit inside a framed cavity so the face finishes flush, which requires framing, drywall, and usually an electrician. Inserts drop into an existing masonry or prefabricated firebox, where the opening dictates the size. Freestanding units and suites need nothing beyond an outlet.

If a television is going above the unit, read can you mount a TV above an electric fireplace before framing anything, because vent direction affects the mounting height.

Wall depth

Wall depth determines whether a recessed unit can sit flush, and it is the measurement most often skipped. A standard interior wall framed with 2x4 studs gives roughly 3.5 inches of usable cavity, and many built-in fireplaces need considerably more.

In practice, this is the problem we hear about most often after the fact. Someone chooses a deep built-in unit, then finds they have around six inches of clearance where the fireplace needs twelve, and the only fix is building the wall out. That is framing, drywall, and finish work that was never in the plan, and it changes how the finished wall sits in the room.

Before ordering any recessed unit, find the required depth on the spec sheet rather than the product photos, measure your actual cavity depth accounting for studs and anything running inside the wall, and if the numbers do not match, decide whether you are building out or choosing a shallower model. Shallow-depth built-ins exist for exactly this situation.

Electrical requirements

At 120V, a 1,500W load draws about 12.5 amps. That calculation alone does not determine the permitted circuit or connection: check the exact model’s listing and installation instructions, the existing circuit, and applicable local requirements before ordering.

Circuit requirements vary by model and installation. For example, the manufacturer specifies a 15A, 120V supply for the 1,500W E-FX Slim Line 1000. Do not apply a universal 20A rule to every fireplace. Have an electrician reconcile the exact unit’s instructions and nameplate with the locally adopted code and other circuit loads.

In practice, the questions we get asked most before a purchase are about electrical capacity: what circuit is behind that wall, whether it is already shared with other rooms, and whether the panel has room for another one. Buyers who work that out before ordering rarely have installation problems. Buyers who assume the nearest outlet will do are the ones calling an electrician mid-project.

Our plug-in vs hardwired comparison covers the tradeoff, and the installation cost guide covers what adding a circuit typically runs.

Running cost

At an illustrative electricity rate of $0.1834 per kWh, a 1,500W heater costs about 27.5 cents per hour at full output. A 30–60W flame display would cost about 0.55–1.10 cents per hour at that same rate. Use your own electricity tariff and the model’s actual wattage for an estimate.

The formula is simple: multiply the unit's wattage by hours used, divide by 1,000, and multiply by your electricity rate. At 750 watts on low, that is roughly 14 cents per hour. The flame effect alone draws 30 to 60 watts.

Your electricity tariff and hours of use determine the energy cost. The rate above is a worked example, not a claim about today’s national or state average. Substitute the per-kWh rate on your electricity bill; fixed service charges are separate.

This is where zone heating pays off. Zone heating, meaning heating only the rooms in active use rather than the whole house, lets you lower the central thermostat and warm one room directly.

Flame effect technology

Flame realism is produced three different ways, and the method matters more than the brand name. Each approach has a distinct look and a significant price gap between them.

LED flame projection is the most common: a light source and a rotating refractor throw a flame image onto a screen. Layered LED with ember beds adds depth by lighting a glass or log media bed independently of the flame layer, which is where most mid-range and premium units sit. Water vapor uses ultrasonic transducers to produce a fine mist lit from below, creating flames you can pass your hand through, and it requires a reservoir refilled periodically.

If realism is your deciding factor, see the water vapor electric fireplaces collection, and our guide to the best electric fireplace brands covers which brands lead on which technology.

Controls and smart features

Control options range from a basic remote to full smart-home integration, and the practical difference shows up in how recessed the installation is. A built-in unit behind a media wall is harder to reach than a wall-mounted one, so controls matter more the deeper the install.

Common options include a handheld remote, standard on nearly every unit, a wall-mounted control panel, Wi-Fi app control, Alexa and Google Assistant compatibility, and a programmable thermostat or timer.

Smart control earns its cost when the fireplace is a room's main heat source, because a thermostat that cycles the heater is more efficient than running it manually.

Size and proportion

Fireplace width should be proportional to the wall it sits on, and common design guidance puts the unit at roughly half to two-thirds of the wall or media console width. Undersizing is the more frequent error.

Bedrooms, offices, and apartments generally suit 26 to 36 inches. Standard living rooms land between 40 and 60 inches. Media walls with a TV above usually want 60 to 80 inches, and large open-concept spaces start at 80 inches.

Measure the wall, not the room. Our electric fireplace sizes guide breaks down every band, and the extra large collection covers open-concept spaces.

Price tier and what each one buys

Price tracks flame technology, build quality, size, and installation flexibility rather than heat output, so compare spec sheets rather than assuming the more expensive unit runs warmer.

Our catalog spans all four tiers, from compact plug-in units to large architectural installations. Current pricing is on the electric fireplace collection page, and our guide on whether premium electric fireplaces are worth it covers where the extra money actually goes.

Maintenance

Electric fireplaces require no venting, no chimney, no fuel, and no annual inspection, which makes them the lowest-maintenance fireplace type available. Ownership comes down to three habits.

Dust the glass and the intake vents a few times a year. Keep the vent clearance the manual specifies, since blocked airflow is the most common cause of nuisance overheat shutoffs. Water vapor units additionally need the reservoir refilled and occasional descaling depending on your water hardness.

LED assemblies are typically rated in the range of tens of thousands of hours, which for normal use means the light source outlasts most other components. Check the rating on the manufacturer's spec sheet rather than assuming, since it varies by model. Our guide on how to clean an electric fireplace covers the routine.

Common mistakes to avoid

Four mistakes account for most electric fireplace problems, and all four are avoidable before you order.

Not measuring wall depth. The most expensive mistake, because the fix is framing a bump-out after the unit has arrived.

Not confirming the circuit. Surfaces at installation, when an electrician is suddenly needed.

Measuring the room instead of the wall. Proportion is judged against the wall, not the square footage.

Choosing the model before the installation type. Installation constrains the model list, so doing it in the other order wastes time. Our guide to common electric fireplace buying mistakes covers each of these in more detail.

Pre-purchase checklist

• Measured the wall cavity depth and compared it to the unit's required depth
• Confirmed the circuit type and amperage at the install location
• Measured the wall width and, for inserts, the firebox opening in three dimensions
• Decided on installation type before shortlisting models
• Checked for a UL, ETL, or CSA listing
• Checked the wattage and BTU rating on the spec sheet
• Checked vent direction if a TV is going above
• Confirmed the flame technology matches your realism expectations

Frequently asked questions

How deep does the wall need to be for a built-in electric fireplace?

Built-in electric fireplaces commonly require more depth than a standard 2x4 interior wall provides, which is roughly 3.5 inches of usable cavity. Required depth varies widely by model and is always listed on the spec sheet. If your available depth is short, you are choosing between framing the wall out and selecting a shallow-depth model, so measure before ordering.

Do electric fireplaces need a dedicated circuit?

Follow the exact model’s circuit and connection requirements. A 1,500W load draws about 12.5 amps at 120V, but wattage alone does not establish a universal 20A requirement. Have an electrician check the listed appliance instructions, applicable local code, and other loads on the circuit.

How much does it cost to run an electric fireplace?

Multiply kilowatts by hours and your electricity rate. At an illustrative $0.1834 per kWh, 1,500W costs about 27.5 cents per hour; 30–60W costs about 0.55–1.10 cents per hour. Actual cost depends on the model, heater setting, thermostat cycling, and your tariff.

Can I put a TV above an electric fireplace?

You can mount a TV above an electric fireplace when the unit vents heat forward or downward rather than straight up, and when you maintain the clearance the manufacturer specifies. Front-venting linear units are designed for this configuration. Confirm the vent direction on the spec sheet before framing, since the required clearance changes the mounting height.

What size electric fireplace should I get?

Electric fireplace width should be roughly half to two-thirds of the wall or media console it sits on, which puts most living rooms in the 40 to 60 inch range and most bedrooms in the 26 to 36 inch range. Undersizing is more common than oversizing and is harder to live with once installed. Our size guide breaks down each band with room examples.

Are expensive electric fireplaces worth it?

Higher-priced electric fireplaces buy better flame technology, build quality, larger formats, and more installation flexibility. If the fireplace is a design centerpiece in a media wall, the premium tiers show their value immediately. If it is a supplemental heater in a bedroom, an entry-tier unit may suit the room just as well, so compare heat output on the spec sheets rather than assuming price and warmth move together.

Where to go from here

The most useful next step is deciding the installation type, because it narrows the model list faster than anything else and tells you immediately whether wall depth is something you need to measure.

If you are building a fireplace wall, compare built-in electric fireplaces against the wall mounted collection to see what each finished install actually looks like.