How Much Does It Cost to Run an Electric Wall Heater?
Bathroom and hallway wall heaters run at full resistance wattage whenever the thermostat calls — small room, real load. At the US-average rate of 16.5¢/kWh, running an electric wall heater costs about $30.08/month ($360.91/year) at typical use. Adjust the watts, hours, and your rate below for your exact number.
Cost to run an electric wall heater
$361/yr
- Per day
- $0.99
- Per month
- $30.08
- Energy per year
- 2,190 kWh
Cost = power (kW) × hours × days × your rate. Defaults are typical values — enter your appliance's actual watts (often on a label) and your real rate for a precise figure.
How much electricity does an electric wall heater use?
At 1,500 W for 4 hours a day, an electric wall heater uses about 6.0 kWh per day — roughly 183 kWh per month and 2,190 kWh per year. That's about 21% of the 863 kWh the average US home uses in a month. Energy use is the same everywhere — only the price per kWh changes your bill.
Wondering about the circuit instead? See how many amps an electric wall heater draws.
Cost to run an electric wall heater by electricity rate
Same 1,500 W appliance, 4 h/day — the bill changes with where you live.
| Scenario | Rate | Per month | Per year |
|---|---|---|---|
| Cheapest states (North Dakota) | 11.5¢ | $21.01 | $252.07 |
| US average | 16.5¢ | $30.08 | $360.91 |
| Most expensive (Hawaii) | 42.9¢ | $78.22 | $938.63 |
Find your state's rate on the electricity rates by state page, or see the appliance wattage chart for more devices.
Measure what an electric wall heater really costs you
The estimate above uses typical wattage and hours. This load is usually hardwired or on a 240 V circuit, so a plug-in meter won't fit it; a whole-home monitor's sensors clip onto the circuit's wires inside the panel and log its real kilowatt-hours. That means working in a live panel — hire an electrician if that isn't you.
We earn a commission if you buy through links on this page, at no extra cost to you. It does not change what we recommend — see our affiliate disclosure. As an Amazon Associate I earn from qualifying purchases.
Whole-home energy monitor
Emporia Vue 3 Home Energy Monitor (16 circuit sensors)
Best for: Measuring hardwired and 240 V loads, or every circuit at once
Frequently asked questions
Ask AI about this
Open an AI assistant with a question grounded in this page.