Cost to Run an Electric Fireplace | Real Numbers & Savings

That number surprises most people. A warm, glowing fire that heats a 400-square-foot room runs on the same wattage as a hair dryer. The real trick is knowing when you’re paying for heat and when you’re paying for the show — because those two modes have wildly different costs. One wrong setting choice can triple your monthly bill without making the room any toastier.

How Much Power Does an Electric Fireplace Actually Draw?

The answer depends entirely on which mode you’re running. A standard U.S. electric fireplace uses 1,500 watts on its highest heat setting — the same draw as a typical space heater. Most units offer a low-heat option at 750 watts and an ambience-only mode that sips power like a nightlight.

Here’s how the wattage breaks down across real operating modes:

Cost to Run an Electric Fireplace: The Exact Math

The calculation is straightforward and uses three numbers you can find in five minutes. The formula is: (Wattage ÷ 1,000) × Your Cost per kWh × Hours Used. Your electric bill shows your cost per kilowatt-hour — the U.S. average as of late 2024 is $0.18/kWh, but that varies from roughly $0.10 in some states to over $0.30 in others.

Switch that same session to low heat (750 watts), and the monthly tab drops to about $20. Use the flame-only ambience mode for those same five hours, and the monthly cost falls to roughly $0.47 — less than a cup of coffee.

If you want to know exactly what your specific unit costs, MagikFlame’s free cost calculator does the math for you with your own numbers.

Here’s what the full range of realistic usage scenarios looks like:

Where Most People Pay Too Much

The biggest mistake is leaving the unit on high heat when a lower setting would do the same job. An electric fireplace heats a room to its set temperature and then cycles off — running on high makes it hit that temp faster, but running on low over a longer period often keeps the space comfortable at half the per-hour cost.

The second mistake is confusing heat mode with ambience mode. The LED flame effects use less than 50 watts, so you can run the visual fire all evening for pennies a month. If you enjoy the look but don’t need the warmth, the high-heat setting is wasted electricity.

The third mistake is running the fireplace 24/7. At $0.15/kWh, continuous operation adds roughly $162 to your monthly bill. These units are meant for zone heating — warming the room you’re in, not the whole house.

Circuit Safety and Installation Reality

A 1,500-watt fireplace draws 12.5 amps of continuous current. That maxes out a standard 15-amp household circuit. If the fireplace shares that circuit with lights, a TV, or other electronics, you risk tripping the breaker. The cleanest solution is a dedicated circuit, but at minimum, avoid plugging anything else into the same outlet while the fireplace runs on high heat.

Electric fireplace installation runs $500 to $2,500, which is significantly less than a gas unit ($2,750 to $5,000) because there’s no venting, gas line, or chimney work required. The 100% efficiency rating means every dollar of electricity you pay for becomes heat — nothing goes up a flue.

What About Heating a Larger Space?

Most electric fireplaces produce 3,000 to 5,000 BTUs, which effectively heats about 400 square feet. That’s a single living room or a master bedroom, not an open-concept great room or a basement. If your space is larger, you’ll either need a higher-output unit or a secondary heat source. For readers looking to heat a bigger area, our roundup of fireplaces for 1,000 square feet covers units with the output and features to handle it.

Three Quick Ways to Lower Your Cost Today

These don’t require buying anything new, just changing how you use what you already own.

• Use the built-in thermostat. Set it to a comfortable temperature and let the fireplace cycle on and off. Running it on constant high is like leaving the oven door open.
• Switch to low heat when the room is warm. Once the space reaches temperature, dropping from 1,500W to 750W maintains the warmth at half the per-hour cost.
• Run the flames with the heater off. If you want the ambiance, flip the heat switch off. The LED display uses less than 50 watts, costing roughly 1 cent for an entire evening.

The bottom line: an electric fireplace costs roughly the same as running a space heater. Used smartly — thermostat on, low heat for maintenance, ambience mode when you just want the look — a season of cozy warmth runs well under $150.