Can I plug a space heater into a power bar?

You should never plug a space heater into a power bar or extension cord. Space heaters draw too much power and create a serious fire risk when used with power bars.

Why Space Heaters and Power Bars Don't Mix

Space heaters typically draw 1,500 watts (12.5 amps) of power, which is close to the maximum capacity of a standard 15-amp household circuit. When you plug a high-draw appliance like this into a power bar, several dangerous things can happen:

The power bar's internal wiring and connections aren't designed to handle sustained high current loads. This creates heat buildup at connection points, which can cause the power bar to overheat, melt, or catch fire. Even "heavy duty" power bars with surge protection aren't rated for continuous high-amperage loads like space heaters.

Extension cords create the same problem - the wire gauge in most household extension cords isn't sufficient for space heater loads. The cord will heat up along its entire length, creating a fire hazard that could ignite nearby materials.

The Safe Way to Use Space Heaters

Always plug space heaters directly into a wall outlet, and make sure that outlet is on a dedicated circuit or has minimal other loads. Check that the outlet isn't loose or damaged - a poor connection combined with high current draw is extremely dangerous.

Before using any space heater, inspect the cord for damage and ensure the heater has modern safety features like tip-over protection and overheat shutoff. Never leave space heaters unattended or running while you sleep.

ESA and Fire Safety Requirements

The Ontario Electrical Safety Code requires that high-draw appliances like space heaters be connected directly to appropriate circuits. Using power bars or extension cords with these appliances violates safety standards and could void your home insurance if a fire occurs.

If you find yourself needing space heaters regularly, it might indicate that your home's heating system needs attention or that you need additional dedicated circuits installed. A licensed electrician can assess your electrical capacity and install proper outlets where needed.

When to Call a Professional

If outlets feel warm when using any appliance, if breakers trip frequently, or if you smell burning odors, shut off the circuit immediately and contact a licensed electrician. These are signs of electrical problems that need immediate professional attention.

For electrical safety assessments or additional outlet installation in Ottawa, Electrical Ottawa's ESA-licensed electricians can ensure your home's electrical system safely supports your heating needs.

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Find a Licensed Electrician

Electrical Ottawa connects you with vetted, ESA-licensed electricians from the Ottawa Construction Network:Ottawa Electrical Contractors:

• Mike Fuller Electric
• Capital Electrical Solutions
• Marcel Electric