Question 1

Is a Challenger panel safe or should I replace it?

Accepted Answer

Challenger electrical panels are generally considered safe and do not require immediate replacement, unlike the notorious Federal Pacific or Zinsco panels that pose serious fire hazards. However, there are some important considerations for Ottawa homeowners with Challenger panels.

What Makes Challenger Panels Different

Challenger panels were manufactured by Challenger Electric from the 1980s through the early 2000s. While they don't have the widespread safety issues of Federal Pacific panels,

Question 2

What is the difference between 100 amp and 200 amp service?

Accepted Answer

The main difference between 100 amp and 200 amp electrical service is the total amount of power your home can safely use at one time. A 100 amp service provides 24,000 watts of power (100 amps × 240 volts), while a 200 amp service delivers 48,000 watts - exactly double the capacity.

Practical Differences in Your Home

With 100 amp service, you might experience breaker trips when running multiple high-demand appliances simultaneously - like your electric dryer, air conditioning, electric water h

Question 3

Why would a breaker feel hot?

Accepted Answer

A hot breaker is a serious safety concern that indicates dangerous electrical problems requiring immediate attention from a licensed electrician. This isn't normal and can lead to fires or electrical failure.

Overloaded Circuit is the most common cause of hot breakers. When you draw more current through a circuit than it's designed to handle, the breaker heats up from the electrical resistance. This often happens when too many high-draw appliances are plugged into one circuit - think space heat

Question 4

What size electrical panel do I need for my house?

Accepted Answer

Most modern homes need a 200-amp electrical panel, while older homes with basic electrical needs may function adequately with 100 amps. However, the right size depends on your home's square footage, electrical appliances, and future plans like EV chargers or hot tubs.

Calculating Your Electrical Load

The Ontario Electrical Safety Code requires specific calculations to determine proper panel sizing. A licensed electrician performs a load calculation that considers your home's heated square foot

Question 5

Can I connect a generator to my electrical panel myself?

Accepted Answer

No, you cannot legally connect a generator to your electrical panel yourself in Ontario. Generator connections require an ESA permit, must be installed by a licensed electrician, and need proper inspection to ensure safe operation.

Why Professional Installation is Required

Generator connections involve complex electrical work that poses serious safety risks if done incorrectly. The installation requires a transfer switch - either manual or automatic - that prevents your generator from back-fee

Question 6

Do I need arc fault breakers in my bedrooms in Ontario?

Accepted Answer

Yes, arc fault circuit interrupters (AFCIs) are required for bedroom circuits in Ontario under the Ontario Electrical Safety Code (OESC), specifically Rule 26-656. This requirement applies to new construction, renovations involving new circuits, and when electrical panels are upgraded.

AFCI protection is mandatory for all 15A and 20A branch circuits supplying outlets in bedrooms. The code recognizes that bedrooms are where many electrical fires start due to damaged extension cords, faulty lamps

Question 7

Why does my circuit breaker feel warm?

Accepted Answer

A warm circuit breaker is a warning sign that shouldn't be ignored - it indicates the breaker is working harder than it should and could lead to failure or fire if not addressed.

Circuit breakers generate some heat during normal operation, but they should never feel noticeably warm to the touch. When a breaker feels warm, it's typically experiencing electrical resistance due to loose connections, overloading, or internal deterioration. This resistance converts electrical energy into heat, which

Question 8

What causes a breaker to trip repeatedly?

Accepted Answer

A breaker that trips repeatedly is protecting your home from a dangerous electrical problem that needs immediate attention. The most common causes are overloaded circuits, short circuits, ground faults, or a failing breaker itself.

When a circuit breaker trips, it's doing its job - cutting power to prevent overheating, fires, or electrocution. If it keeps tripping after you reset it, don't keep resetting it. This indicates a persistent problem that could be dangerous.

Overloaded circuits are t

Question 9

Why does my kitchen outlet keep tripping the breaker?

Accepted Answer

Your kitchen outlet is likely tripping the breaker due to an overloaded circuit, a ground fault, or a faulty GFCI outlet. Kitchen circuits are particularly prone to tripping because they handle high-power appliances and are required to have GFCI protection near sinks.

The most common cause is circuit overload. Kitchen outlets in Ottawa homes often share circuits, and when you run multiple high-wattage appliances simultaneously - like a microwave (1,200W), coffee maker (1,000W), and toaster (1,5

Question 10

Why is there a burning smell coming from my electrical panel?

Accepted Answer

A burning smell from your electrical panel is a serious electrical emergency that requires immediate action. This typically indicates overheating components, arcing, or electrical connections breaking down - all of which can lead to electrical fires.

Immediate steps you should take right now: Turn off your main breaker if you can safely access it, avoid touching the panel if it feels hot, and evacuate your home if the smell is strong or getting worse. Call a licensed electrician immediately - t

Question 11

How much does it cost to move an electrical panel?

Accepted Answer

Moving an electrical panel in Ottawa typically costs $2,500 to $5,000, depending on the distance moved and complexity of the relocation. This is considered a major electrical project that requires ESA permits, inspections, and coordination with Hydro Ottawa.

The cost breakdown includes several key components that make panel relocation more expensive than a simple replacement. Labor represents the largest expense since your electrician must safely disconnect all circuits, install new conduit run

Question 12

Can I add more circuits to my full electrical panel?

Accepted Answer

No, you cannot safely add more circuits to a full electrical panel. If all the breaker slots are occupied, you'll need either a panel upgrade to a larger panel or a subpanel installation to accommodate additional circuits.

When your main electrical panel is full, you have several options depending on your specific situation and electrical needs. The most common solution is installing a subpanel, which acts as an extension of your main panel. A subpanel connects to your main panel through a feed

Question 13

Why does my hot tub keep tripping the breaker?

Accepted Answer

Your hot tub is likely tripping the breaker due to an overloaded circuit, a ground fault, or a failing heating element. Hot tubs draw significant power (typically 30-50 amps), and even small electrical issues can cause breaker trips.

The most common cause is circuit overload. Hot tubs require dedicated circuits sized specifically for their amperage draw. If your hot tub is on an undersized breaker or sharing a circuit with other devices, it will trip when the heating element and pumps run simul

Question 14

How do I know if my electrical panel needs to be replaced?

Accepted Answer

Your electrical panel likely needs replacement if it's over 25-30 years old, frequently trips breakers, shows signs of corrosion, or is a known fire-hazard brand like Federal Pacific or Zinsco. Modern homes require more electrical capacity than older panels can safely provide.

Age and Capacity Issues

Most electrical panels installed before 1990 struggle to meet today's electrical demands. If your panel is rated for 60-100 amps and you're adding modern appliances, EV chargers, or home additions

Question 15

How much does a 200 amp panel upgrade cost in Ottawa?

Accepted Answer

A 200 amp panel upgrade in Ottawa typically costs between $2,000 and $3,500, depending on your current electrical setup and any additional work required.

The price variation depends on several key factors. If you're upgrading from a 100 amp service, the cost is generally on the lower end since the main service wire from the street can often handle the increased capacity. However, if you're upgrading from an older 60 amp service, Hydro Ottawa may need to upgrade the service drop from the transfo

Question 16

Is it worth upgrading from 100 amp to 200 amp service?

Accepted Answer

Upgrading from 100A to 200A service is often worth it for most Ottawa homes, especially if you're planning to add an EV charger, heat pump, or other high-demand appliances. The investment typically pays off in increased home value, electrical safety, and future-proofing your property.

When 200A Service Makes Sense

A 100A panel was adequate for homes built 20-30 years ago, but today's electrical demands have grown significantly. If you're frequently tripping breakers, planning to install an EV

Question 17

Can I add a subpanel in my detached garage?

Accepted Answer

Yes, you can absolutely add a subpanel in your detached garage, and it's often the best solution for powering multiple circuits in an outbuilding. This is a common upgrade for Ottawa homeowners who want to run power tools, electric vehicle chargers, or multiple outlets in their garage.

Installing a garage subpanel requires running a feeder cable from your main panel to the new subpanel location. The size of this feeder depends on your power needs - typically 60A or 100A for most residential gar

Question 18

Do I need a permit to replace my electrical panel in Ottawa?

Accepted Answer

Yes, you absolutely need an ESA permit to replace your electrical panel in Ottawa. Panel replacement is considered major electrical work that requires both a permit and inspection by the Electrical Safety Authority (ESA).

In Ontario, the Ontario Electrical Safety Code (OESC) requires permits for virtually all electrical work beyond simple replacements like outlets and switches. Panel replacement falls squarely into the category of work that must be permitted, whether you're upgrading from 100A

Question 19

What is a Federal Pacific panel and why is it dangerous?

Accepted Answer

Federal Pacific Electric (FPE) panels are fire hazards that should be replaced immediately. These electrical panels, manufactured from the 1950s to 1980s, have documented safety defects that can cause house fires and electrocution.

Federal Pacific panels are easily identified by their distinctive red and black Stab-Lok breakers and the "Federal Pacific Electric" nameplate on the panel door. They were installed in millions of homes across North America, including many Ottawa-area homes built dur

Question 20

What's the difference between 100 amp and 200 amp service?

Accepted Answer

The main difference between 100 amp and 200 amp electrical service is the total amount of power your home can use simultaneously - 100 amp service provides about 24,000 watts while 200 amp service delivers 48,000 watts of available power.

Electrical Capacity and Modern Needs

A 100 amp service was standard for homes built before the 1980s and can handle basic electrical needs like lighting, standard appliances, and a central air conditioning unit. However, modern homes typically require signifi

Panels & Breakers