What to Know About Electric Fireplaces | Heat Without a Chimney

An electric fireplace looks a lot like a gas model from across the room, but it runs on a 120-volt outlet and produces no real combustion. The flame effect comes from LED bulbs reflecting off rotating mirrors or from atomized water vapor lit by colored lights, while the heating element works like a large space heater rated at 1,000 to 1,500 watts. The trade-off is simple: you lose the BTU output of a gas or wood fireplace, but you gain the ability to install one almost anywhere — a bedroom wall, a basement corner, or an old wood-burning opening that no longer meets code. This guide covers the real costs, installation steps, and the three main types so you can pick the right one for your room.

Three Types of Electric Fireplaces and How They Work

Every electric fireplace uses one of two flame technologies, and the differences matter for both the look and the operating cost.

• LED flame effect: The standard method. LED bulbs shine onto a spinning reflector or a layered screen, creating a flicker that mimics a real flame. This uses minimal electricity — roughly 5 to 20 watts — so running just the flame costs pennies per week.
• Water-vapor flame effect: Uses atomized water mist lit by colored LEDs. The effect is more three-dimensional and closer to a real gas flame. These units consume 220 to 880 watts in flame mode and need refilling with tap water every few hours, but operating costs can be as low as $0.15–$0.55 per month at 2 to 4 hours daily use.

All units also include an electric resistance heater (usually fan-forced) that delivers 3,000–5,000 BTUs — enough to take the chill off a single room up to about 400 square feet. Hardwired models using 240-volt circuits can reach 800–1,000 square feet.

What to Know About Electric Fireplace Costs (2026)

The upfront price varies dramatically depending on whether you buy a simple plug-in insert or build a custom feature wall. Running costs stay modest either way.

Operating costs: On the heater setting at 1,500 watts and the U.S. average 17.5¢/kWh, expect roughly $0.26 per hour. Dropping to the 750-watt setting cuts it to about $0.13 per hour. Running only the LED flame effect costs roughly $0.01–$0.05 per hour. Professional installation averages $200 for a simple plug-in placement up to $1,000 for a recessed insert with electrical work — $10,000+ only for fully integrated builds with finishes. If you are comparing models in this size range, our tested roundup of the best 50-inch electric fireplaces covers the top-rated units for larger wall installations.

How to Install an Electric Fireplace (Two Common Methods)

Installation splits cleanly into two routes: dropping an insert into an existing fireplace opening, or mounting a unit onto a flat wall. Both are DIY jobs if you are comfortable with basic tools and a stud finder.

Insert Installation into an Existing Fireplace

1. Measure the opening. Record the height, width, and depth of the existing fireplace box. The insert must fit with an inch or two of clearance for air circulation.
2. Seal the flue. Close the damper and seal any gaps with non-fibrous insulation or firestop material to prevent rain, drafts, and debris from falling through the chimney into the unit.
3. Assemble the surround. Remove the decorative front panel (usually shipped on brackets). Slide the surround frame over the appliance from the top and fasten it with the provided screws.
4. Slide the insert in. Position the unit into the opening. Route the power cord through the bottom if the outlet is external, or plug it into a receptacle inside the cavity if one was installed. Level the unit with shims or leveling brackets.
5. Attach the front. Align the hooks on the decorative front with the slots on the insert and lower it until the magnets hold it in place. You should hear a solid click.
6. Power it on. Use the multi-function remote or the manual buttons to test both the flame effect and the heater.

The flame cycles through its brightness settings, and warm air flows from the top or front vents within 10 seconds of turning on the heat.

Wall-Mount Installation

1. Pick a location. Mark a spot on the wall that keeps 50 to 100 cm of clearance around the unit and avoids placing a power outlet directly above the fireplace (heat damage risk). Confirm the wall has wood or metal studs to support the weight.
2. Use the template. Tape the cardboard or paper template (included with most units) against the wall. Mark the screw-hole locations through the template onto the drywall.
3. Drill into studs. Locate the stud centers with a stud finder. Drill pilot holes at the marks that align with studs. If your layout forces a hole into drywall only, use toggle bolts rated for the unit’s weight.
4. Attach the bracket. Bolt the mounting bracket to the wall, checking level with a torpedo level. A crooked bracket produces a crooked fireplace.
5. Lift and lock. With a helper, lift the fireplace and hook its slotted back plate onto the bracket lugs. Lower it until the hooks seat fully. Secure with any locking screws provided.
6. Test everything. Clean the glass screen, reattach it, and run the unit through its modes before declaring the job done.

The unit sits flush against the wall with no visible gap at the top or sides, and the mounting screws are hidden behind the decorative front panel.

Common Mistakes and How to Avoid Them

Most installation problems come down to three avoidable errors. Buying a heater too small for the space is the most common — a standard 1,500-watt unit heats about 400 square feet. Rooms above that size need either an infrared model (the heat penetrates deeper) or a hardwired 240-volt unit that reaches 800–1,000 square feet. Placing an outlet directly above the fireplace — roughly a third of install photos on social media show this — invites heat damage to the receptacle and plugged-in cords. And when inserting into an existing chimney, skipping the damper seal means water, soot, and leaves will eventually end up on your new unit’s fan.

Best Electric Fireplace Brands and Models

The top names in electric fireplaces for 2026 are well-established manufacturers with strong warranty support and widely available parts. The table below shows the general positioning of each, with a specific example price for one popular unit.

Budget-conscious buyers can find functional units from R.W. Flame and other Amazon brands in the $120–$600 range. The trade-off is shorter warranties, less realistic flame effects, and plastic trim that may yellow over time.

If you want professional installation, an electrician charges roughly $200–$500 to run a dedicated circuit for a hardwired unit. The fireplace installer (not the electrician) typically charges $200–$800 to frame the opening and mount the unit, depending on complexity.

Electric Fireplace vs. Gas, Wood, and Other Heaters

An electric fireplace is not a primary home heating system. The output maxes out at around 5,000 BTUs, which is roughly a seventh of what a standard gas furnace delivers. It works best as a zone heater for a living room, bedroom, or basement where you want the visual effect plus enough warmth to take the chill off a 400-square-foot area. Gas and wood fireplaces produce 20,000–60,000 BTUs and can heat multiple rooms, but they require a chimney or direct-vent system, annual inspections, and permit compliance. Electric fireplaces produce zero emissions, need no venting, and have no firebox clearance requirements — you can install one under a TV without worrying about heat damage (as long as you keep the recessed unit’s own venting clear).

FAQs

Do electric fireplaces actually heat a room?

Yes, to a degree. A standard 1,500-watt unit delivers 5,000 BTUs, which is enough to warm a well-insulated room up to 400 square feet by about 5–10 degrees on a cold day. They are designed as supplemental heat, not a primary home heating source.

How much does it cost to run an electric fireplace per month?

Running the heater for four hours a day at 1,500 watts and 17.5¢/kWh costs about $0.26 per session, or roughly $31 per month. Running only the flame effect (LED mode) uses 5–20 watts, costing about $0.01–$0.05 per hour, or less than $5 per month.

Can I install an electric fireplace myself?

Yes, if you are comfortable with a tape measure, stud finder, drill, and level. Plug-in wall mounts and inserts are designed for DIY installation and typically include a cardboard template. Hardwired units that require a new circuit are best handled by a licensed electrician to meet local code.

What size electric fireplace do I need for a large room?

For a room over 400 square feet, look for a 240-volt hardwired unit or an infrared model. Infrared electric fireplaces heat objects and people directly rather than the air, so they feel warmer in large or drafty spaces even at the same 1,500-watt draw. Expect to pay $700–$1,500+ for a quality infrared model.

Do water-vapor electric fireplaces produce real smoke or fumes?

No. The “flame” is simply atomized water vapor, the same as the mist from a cool-mist humidifier. There is no smoke, soot, odor, or carbon monoxide. The vapor is safe for pets, electronics, and fabrics. The main maintenance task is refilling the water tank every 2–4 hours of continuous use.