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The short answer, as of 2026: a standard 1,500-watt electric fireplace on full heat costs about 26 cents an hour at the US average residential rate of roughly 17.5 cents per kWh (EIA) — $1.05 for a four-hour evening, about $32 a month used that way, and roughly $126 across a four-month winter. On the low heat setting, usually 750 watts, halve it. With the flames on and the heater off, it costs under a cent an hour. In California at 32 cents per kWh the same four-hour evening costs $1.92.
Because the thermostat cycles the element off once the room is warm, real-world cost typically lands 30 to 50 percent below the full-output figures. We do not physically handle the units we rank; our picks come from aggregated owner reviews and expert consensus, described in how we rank, with the ranked field in best electric fireplaces.
Cost by electricity rate and setting
Use the all-in rate from your bill — total charge divided by kWh used — which typically runs 15 to 40 percent above the advertised supply rate once delivery and fees are included.
| Rate per kWh | Flame only (20 W), 4 hr | Low heat (750 W), 4 hr | Full heat (1,500 W), 4 hr | Full heat, 4 hr × 30 days |
|---|---|---|---|---|
| 11¢ — WA, ID, ND | $0.01 | $0.33 | $0.66 | $19.80 |
| 14¢ — TX, TN, MO | $0.01 | $0.42 | $0.84 | $25.20 |
| 17.5¢ — US average | $0.01 | $0.53 | $1.05 | $31.50 |
| 25¢ — NY, NH, VT | $0.02 | $0.75 | $1.50 | $45.00 |
| 32¢ — CA, MA, CT | $0.03 | $0.96 | $1.92 | $57.60 |
| 44¢ — HI | $0.04 | $1.32 | $2.64 | $79.20 |
The formula behind every cell: watts ÷ 1,000 × hours × rate per kWh. A 1,500-watt unit uses 1.5 kWh per hour of full-output running, and 5,000 BTU per hour of heat is what that delivers — enough for roughly 400 to 500 sq ft of well-insulated space.
How it compares with other heat
| Heat source | Efficiency | Cost for the same 20,500 BTU (4 hr at 1,500 W) |
|---|---|---|
| Electric fireplace or space heater | 100% | $1.05 |
| Ductless heat pump, COP 3.0 | 300% | $0.35 |
| Natural gas fireplace or furnace, 90% efficient | 90% | $0.35 – $0.50 |
| Propane, 90% efficient | 90% | $0.70 – $0.95 |
| Heating oil furnace, 85% efficient | 85% | $0.60 – $0.85 |
| Pellet stove | 80% | $0.40 – $0.60 |
Electric is the most expensive per unit of delivered heat in most of the country. Its advantage is elsewhere: no venting, no chimney, no combustion products, no permit for a plug-in unit, no annual service, and installation measured in minutes rather than thousands of dollars. That combination is why the sensible use case is supplementing rather than replacing central heat.
Where it genuinely saves money
Zone heating is the real argument. Every 1°F you set a whole-house thermostat back over an 8-hour period saves roughly 1 percent of heating energy, according to long-standing US Department of Energy guidance. In a large or poorly zoned home, running 1,500 watts in the living room while dropping the house thermostat 6 to 8°F usually comes out ahead, sometimes substantially.
It stops working when you run several units at once. Three 1,500-watt fireplaces on top of a furnace that is still cycling is how people arrive at a $400 January bill. The arithmetic only favors electric zone heat when the central system genuinely runs less.
- Use the thermostat, not the on-off switch. A unit set to hold 68°F cycles and costs far less than one left on full.
- Run flame-only in mild weather. It provides the visual effect people actually want for about 2 percent of the cost.
- Close the door. Zone heating an open-plan space with 1,500 watts does not work.
- Shift to off-peak hours if you are on a time-of-use tariff.
Total cost of ownership
| Item | 2026 cost |
|---|---|
| Plug-in insert or mantel unit | $150 – $900 |
| Wall-mount linear unit | $300 – $1,500 |
| Built-in installation (framing, trim, outlet) | $400 – $2,000 |
| Electricity, four-month winter of evening use | $80 – $220 |
| Maintenance | Effectively none — occasional dusting, LED lasts the life of the unit |
Safety. Plug a 1,500-watt unit directly into a wall receptacle, never into an extension cord or power strip. Keep the recommended clearance from furniture and curtains, and never mount a unit above a heat-producing appliance or a working fireplace. Hardwired 240-volt models need a dedicated circuit installed by a licensed electrician, and both permits and inspection requirements are jurisdiction-specific — check with your local building department before any built-in installation.
For the wattage detail see how many watts an electric fireplace uses and do electric fireplaces use a lot of electricity. On what they can realistically heat, how many square feet an electric fireplace heats and do electric fireplaces really heat a room are the honest answers, and are electric fireplaces worth it weighs the whole case. Everything else is at the heating and cooling hub.