How much does baseboard heat cost to run?

Electric baseboard heaters run from 500 to 2,500 watts. The size scales with length: a unit draws roughly 250 watts per linear foot, so a common 6-foot heater is about 1,500 watts. The Cadet F Series 6F1500 and the Fahrenheat PLF1504 both sit at 1,500 watts. A longer 8-foot King Electric unit pushes 2,400. A small bedroom might use a single 750-watt heater; a large living room often needs two units or one long one.

That nameplate wattage is what the element draws when it is actually energized. A thermostat, either a dial built into the heater or a wall unit, cycles the element on and off to hold the room at the set temperature. When the room reaches the setpoint, the element shuts off completely and draws nothing until the temperature drifts back down. Over a cold evening, a baseboard heater's element is typically energized about half to two-thirds of the time it is on.

The baseboard heater calculator page uses a 55% duty cycle as the typical seasonal average. That accounts for the mix of mild evenings, deep cold snaps, and overnight setbacks across a real heating season. The monthly cost figures below all use that 55% average unless noted otherwise.

When the element is energized, a 1,500-watt heater draws 1.5 kWh per hour, which is $0.27 at the national average rate. Apply the 55% seasonal duty cycle and the effective cost is about $0.15 per hour. Run that heater for eight hours a day and it uses roughly 198 kWh a month, or about $36 at the national average. By state, that same single heater costs:

Louisiana at 12.44¢/kWh: $25 per month. Texas at 14.8¢: $29. National average at 18.05¢: $36. New York at 24.4¢: $48. California at 33.75¢: $67. Hawaii at 39.89¢: $79.

The single-heater number is the trap. Most homes that rely on baseboard heat have one unit per room, four to six heaters in total, because baseboard was the cheapest system to install when the house or apartment was built. A 1,000-square-foot apartment heated entirely by baseboard typically uses 1,200 to 1,800 kWh in a cold winter month. That is $215 to $325 at the national average, $290 to $440 in New York, and $405 to $610 in California. The full state-by-state rate breakdown covers all 50 states and DC with current 2026 residential rates.

A 1,500-watt space heater costs exactly the same to run as a 1,500-watt baseboard heater, because both are electric resistance. The baseboard heater's only real advantages are that it is wired in permanently, heats a room more evenly along the floor, and can take a dedicated per-room thermostat. If you are heating one room you spend the evening in, a portable space heater and a baseboard heater cost the same.

A heat pump is the cost difference that matters. Instead of turning electricity directly into heat, it moves existing heat from outdoor air into the house. Its coefficient of performance of 2 to 3 means it delivers two to three times as much heat per watt as any resistance heater. A ductless mini-split heat pump doing the same heating work as a room of baseboard uses one-third to one-half the electricity. Over a winter, that is the difference between a $1,200 baseboard season and a $450 heat pump season for the same rooms. The full math is in the heat pump running cost guide.

The DOE rates electric resistance heating at essentially 100% efficient. Every watt the element draws becomes heat in the room. There are no combustion losses, no flue, no wasted energy. By the efficiency number on paper, baseboard heat looks perfect.

The problem is the fuel, not the machine. Electricity at 18.05¢/kWh delivers heat at roughly $52.90 per million BTU. Natural gas at $1.20 per therm delivers the same heat at about $14 per million BTU after a 96% efficient furnace. The DOE's electric resistance page states the conclusion directly: resistance heat is the most expensive way to heat a home in most of the country, despite being technically the most efficient at converting its input into heat. That is the whole reason the electric furnace and baseboard heat both sit near the top of any cost ranking.

A heat pump is the long-term fix, but three changes cut a baseboard bill this winter with little or no capital outlay. First, put a programmable line-voltage thermostat on each heater. Many older baseboard systems run on a crude dial built into the unit or a single wall thermostat for the whole floor, which means rooms overheat and stay hot while empty. A per-room programmable thermostat cuts runtime 20 to 30%.

Second, seal the room before you heat it. Baseboard cost is roughly half driven by the building envelope, because every BTU that leaks out gets replaced at electricity prices. Weatherstripping doors, sealing outlet gaps on exterior walls, and adding attic insulation can cut 15 to 20%. The DOE's air sealing guide covers where homes lose the most heat.

Third, use the one structural advantage baseboard has: per-room control. Heat only the rooms you are in, keep unused rooms at 55°F, and drop bedroom heaters 5°F overnight. The DOE estimates every degree below 70°F saves 2 to 3% on heating costs. A house that zones aggressively can run baseboard at half the cost of one that heats every room to 70°F around the clock.

Heater wattage, daily run hours, and your state rate all change the monthly cost. Enter your numbers in the calculator below. For a single bedroom heater, try 1,500 watts at 8 hours. For a whole apartment, add up the wattage of every heater and use the hours the system actually calls for heat.

Baseboard heat lands near the top of the most expensive appliances ranking. If your winter bill jumped and you are not sure which appliance is driving it, the high-bill diagnostic walkthrough covers how to isolate the cause.