Electric fireplace FAQ

Yes, up to about 256 square feet. A 1,500 W unit produces roughly 5,118 BTU per hour, and the common rule of thumb is 20 BTU per square foot. Above that size it is supplemental heat — noticeably warmer where you sit, not a heated room. Full working on do they actually heat a room.

About 27.5 cents an hour on full heat, at the June 2026 US residential average of 18.34 cents per kWh. That is roughly $99 across a 90-day winter at four hours a night. With the heater off and just the flame running, under two cents an hour. Put your own rate in the calculator.

Because a standard US household circuit is 120 volts and 15 amps, continuous loads are conventionally limited to about 12 amps, and 12.5 amps at 120 volts is 1,500 watts. Every plug-in unit hits the same wall. Exceeding it needs 240 V hardwired equipment, which is a different category entirely.

No. A $180 log set and an $1,800 recessed linear unit both produce about 5,118 BTU per hour, because they are both capped at 1,500 W. Price buys flame quality, housing, glass and warranty — never warmth.

Yes, and by a wide margin compared with any fuel-burning fireplace. There is no combustion, so no carbon monoxide, no smoke, no sparks and no flue. The genuine considerations are electrical — circuit load, cord routing and clearance. Detail on are electric fireplaces safe.

No. Carbon monoxide is a product of combustion and nothing in an electric fireplace burns. This is why they can be fitted in bedrooms and basements with no venting and no detector requirement.

No. Nothing is exhausted, so there is nothing to vent. If you have an existing chimney it can stay capped and unused — and closing the damper is worth doing, because an open flue draws heated room air out all winter.

Many manufacturers specify one. At 1,500 W a unit draws about 12.5 amps, which is roughly 83% of a 15-amp circuit before anything else is plugged in. Whether your existing wiring can carry it is a question for a licensed electrician — we are not electricians and do not give code advice.

No. Manufacturers prohibit it and the reason is sound: a continuous 12.5 amp load through a cord or power strip not rated for it is a genuine fire risk. Plug it directly into a wall receptacle.

In evening light, viewed head-on, modern layered-LED units are convincing enough that most visitors do not comment. In bright daylight or from a sharp angle, most are not. Which of those describes your room matters more than the price. See do they look cheap.

Ultrasonic water vapor — Dimplex's Opti-Myst mechanism — because the flame is illuminated mist occupying real three-dimensional space rather than a lit surface. It costs several times more than LED, needs refilling, and on most models the flame effect produces no heat at all.

Yes, on essentially every unit made — they are independent controls, and it is how most owners use them for most of the year. It also costs a small fraction of running the heater: under two cents an hour against 27.5.

Yes, and it is the most common use for one. A decommissioned masonry firebox needs no venting and no gas line. The two things to check are the opening dimensions at the BACK as well as the front, and whether there is a receptacle within reach.

About 3.5 inches, which is what a standard 2x4 stud wall provides. Units published under about 4 inches deep sit nearly flush in that. Anything deeper needs furring strips, a 2x6 wall, or a built-out chase.

70 inches or wider. A 75-inch set is about 66 inches across, so a 70-inch console carries it with clearance either side. Check the distance between the television's feet too — that is often the real constraint.

Generally yes. There is no combustion, no smoke and no soot, and these consoles vent forward rather than up through the top surface. The bigger risk in the room is furniture tip-over — fit the anti-tip strap that came in the box.

Only if you turn the central thermostat down and heat one occupied room instead of the whole house. Added to your existing heating, an electric fireplace increases the bill by about 27.5 cents for every hour it runs on high.

Worth it if you have a dead firebox you want to look alive, want zero venting and zero maintenance, and treat the heat as a bonus. Not worth it as a strategy for reducing a whole-house heating bill. The conditional answer is on are they worth it.

Check the setting first — many units default to the 750 W low setting, which is half the heat. Then check the room size against 256 square feet, then check nothing is blocking the heat outlet. Those three explain nearly every case.

No, and we say so on every relevant page. We do not own them and we have no lab. What we do is compile the published manufacturer specifications, compute running cost and heat output from formulas we show, and cite the source of every figure. The full method is on how we pick.