Does a Space Heater Need a Dedicated Circuit?

Space heaters use less energy than HVAC running at the same temperature, so they’re great for keeping your energy bill low while still staying warm in the colder months. But if your space heater has been tripping your breaker, you should consider installing a dedicated circuit.

What appliances need dedicated circuits?

The National Electrical Code requires that all major appliances have dedicated circuits. Major appliances include refrigerators, stoves, washers & dryers, and some space heaters. Space heaters can range from 400 to 1500 watts, but a good rule of thumb is that the maximum watts per outlet should never exceed 1500 watts. In other words, yes, your 1500-watt heater needs its own circuit.

Why does my space heater keep tripping the breaker?

Portable space heaters use a lot of power and can overload circuits, cause breakers to trip, and even start an electrical fire. (This is also why you should never plug a space heater into a surge protector or an extension cord.) If your breakers trip when your heater is in use, then we recommend installing a dedicated circuit. This will help you stay safe while also ensuring that none of your other appliances are affected.

How Do I turn off power to my home?

Turning off the electrical power to your home is an important task that should be done carefully. Whether you’re doing routine maintenance, addressing an electrical issue, or preparing for severe weather, knowing where and how to shut the power off can prevent shocks, fires, and other hazards.

Where to find the Main Power Cutoff

The main power cutoff is the primary switch that stops electrical power from flowing into your home. In most homes, the main cutoff is located in one of two places:

Main electrical panel: This is usually mounted inside the home, often above or near the main circuit breaker. It may be labeled “Main” and is typically a larger switch that controls all branch circuits.
Main disconnect on the exterior of the home: Some homes have a weatherproof disconnect mounted on the exterior wall or near the meter. This external disconnect serves the same purpose as the panel’s main breaker but is located outside for easier access by utility workers or emergency responders.

If you’re unsure which location applies to your home, check both areas and look for a clearly labeled switch or lever. The main cutoff is typically larger than the other circuit breakers and is positioned at the top of the panel or immediately after the meter in exterior disconnects.

How to Turn the Power Off Safely

Assess the situation: If there’s a dangerous situation (sparks, burning smell, or smoke), call emergency services and do not attempt to shut off the power yourself.
Locate the main disconnect: Find either the main panel inside or the exterior disconnect. Confirm you’re at the main switch, not a regular breaker.
Turn off the main disconnect: Flip the switch to the OFF position (or switch the lever to the “Off” or “0” setting). You may need to push or firmly switch to ensure its fully disengaged.
Verify power is off: Check outlets or lights, on a safe circuit, to confirm there is no electrical power.
Resetting after electrical work: When you’re ready to restore power, switch the main disconnect back to ON. Then flip the individual breakers back to their original positions if they were tripped or manually turned off.

Speak With a Professional Electrician

If you’re unsure about shutting off power yourself, our electricians can help. Will Spurlock is a team of experienced electricians and has been serving Atlanta and Northeast Georgia for 30+ years. We’re committed to providing cost-effective, high-quality commercial and residential electrical services, including inspections, repairs, and installations.