How Many Amps Does an Electric Wall Heater Use?
Electric Wall Heater draws about 6.3 amps at 240 volts (1,500 watts running). Electric Wall Heater runs on its own dedicated 240 V circuit — a 1,500 W load calls for at least a 15 A double-pole breaker (your unit's nameplate may require more).
Amps = watts ÷ volts. Enter the wattage from your appliance's nameplate or label for an exact figure.
Current draw — an electric wall heater
6.3 A
- At 240 V
- 1,500 W
- Typical breaker
- 15 A
Breaker figure is guidance for a simple resistive load, sized at 125% for continuous running — confirm against the nameplate and a licensed electrician.
Electric Wall Heater amperage at 120 V and 240 V
Same 1,500 W load — the current halves when the voltage doubles. Electric Wall Heater is typically a 240 V appliance in US homes.
| Draw | Watts | Amps at 120 V | Amps at 240 V |
|---|---|---|---|
| Running | 1,500 W | 13 A | 6.3 A |
Breaker and circuit for an electric wall heater
Electric Wall Heater runs on its own dedicated 240 V circuit — a 1,500 W load calls for at least a 15 A double-pole breaker (your unit's nameplate may require more). For a dedicated circuit, guidance is a 15 A breaker with 14 AWG copper (75°C terminations) — sized at 125% of the running current because it runs 3+ hours at a time (NEC 210.20).
Guidance only — actual circuit sizing depends on your unit's nameplate, wire run length, and local code. Confirm with a licensed electrician. See the wire & breaker size chart for the full NEC ampacity table.
Frequently asked questions
Ask AI about this
Open an AI assistant with a question grounded in this page.