Question 1

What are the dangers of using a portable generator inside my garage during a winter power outage?

Accepted Answer

Running a portable generator inside your garage — even with the door open — is life-threateningly dangerous and kills Canadians every single winter. Carbon monoxide (CO) from generator exhaust is colourless and odourless, and it can reach lethal concentrations inside an enclosed or semi-enclosed space within minutes. This is not a theoretical risk; it is the leading cause of non-fire death associated with portable generators in North America, and emergency rooms across the GTA see CO poisoning c

Question 2

Do I need a permit from TSSA and ESA to install a natural gas generator in Ontario?

Accepted Answer

Yes, you need both — a TSSA permit for the natural gas line connection and an ESA permit for the electrical work, and neither is optional. Installing a natural gas standby generator in Ontario is a dual-permit project that involves two separate regulatory authorities, each responsible for a different aspect of the installation. Skipping either permit is illegal, voids your insurance coverage, and creates serious liability if anything goes wrong.

The ESA (Electrical Safety Authority) permit cove

Question 3

How often does a whole-home standby generator need maintenance and what does it cost?

Accepted Answer

A whole-home standby generator needs professional maintenance once or twice per year, with annual service costs typically running $200 to $500 in the GTA depending on the unit size and service scope. The generator also runs a brief automated self-test weekly — usually for 10 to 15 minutes — to keep the engine lubricated, charge the starter battery, and confirm the system is ready for an actual outage.

The annual maintenance service is the most important item and should be performed by a qualifi

Question 4

Should I get a 16kW or 22kW generator for my Toronto home?

Accepted Answer

The right size depends entirely on your home's electrical load, and for most GTA homes, the answer comes down to whether you want to power essential circuits or your entire house — a 16kW unit handles essentials plus comfort loads in a typical 1,500 to 2,000 square foot home, while a 22kW unit can power virtually everything in homes up to 3,000 square feet. Your electrician will perform a detailed load calculation to determine the exact requirement, but here is how to think about sizing.

A 16kW

Question 5

Is it worth getting a standby generator if I already have a natural gas furnace?

Accepted Answer

Absolutely — in fact, having a natural gas furnace makes a standby generator even more important, because your furnace cannot run without electricity regardless of its fuel source. This is one of the most dangerous misconceptions among GTA homeowners. Your gas furnace relies on an electric blower motor, an electronic igniter, a circuit board, and often a combustion air fan. When Toronto Hydro power goes out, your furnace is completely dead, and your home begins losing heat within hours during a

Question 6

What happens to my electrical panel during a power surge when the grid comes back on after an outage?

Accepted Answer

When Toronto Hydro restores power after an outage, the initial surge can spike to 20 to 40 percent above normal voltage for a fraction of a second — enough to damage sensitive electronics, trip AFCI breakers, and in rare cases, cause premature failure of appliances with electronic controls. This post-outage surge is one of the most overlooked risks of power restoration in the GTA, and it is why whole-home surge protection is an important companion to any backup power strategy.

The spike happens

Question 7

Can I install a standby generator beside my Toronto townhouse or is there a setback rule?

Accepted Answer

Yes, there are strict setback and clearance requirements for standby generators in Toronto and across the GTA — and for townhouses specifically, the constraints are tighter than for detached homes because of shared walls, property line proximity, and municipal noise bylaws. Before purchasing a generator, you need to confirm that your property can physically accommodate one within all applicable codes.

The Ontario Building Code and TSSA (Technical Standards and Safety Authority) regulations requ

Question 8

How long can a whole-home standby generator run continuously during a Toronto ice storm?

Accepted Answer

A natural gas whole-home standby generator can run continuously for days or even weeks, as long as your gas supply remains active — which is exactly why natural gas units are the preferred choice for GTA ice storm preparedness. During Toronto's devastating 2013 ice storm, over 300,000 Toronto Hydro customers lost power for up to 10 days, and homeowners with natural gas standby generators were the only ones who maintained heat, refrigeration, and lighting throughout the entire event.

Natural gas

Question 9

What is the difference between a manual and automatic transfer switch for backup power?

Accepted Answer

A manual transfer switch requires you to physically flip a lever or series of breakers to transfer your home from grid power to generator power, while an automatic transfer switch (ATS) detects the outage and switches over on its own within 10 to 30 seconds — no human intervention needed. Both types are legally required in Ontario before you can connect any generator to your home's electrical panel, and both require an ESA permit and installation by a licensed electrician.

A manual transfer swi

Question 10

How much does it cost to get my home wired for a portable generator in the GTA?

Accepted Answer

Getting your home properly wired for a portable generator — meaning a manual transfer switch, power inlet box, and dedicated circuits — typically costs $1,500 to $2,500 in the Greater Toronto Area, including the ESA permit and inspection. This is the safe, legal, code-compliant way to connect a portable generator to your home's electrical system, and it is a one-time investment that protects your family every ice storm season.

The installation involves three main components. First, your electri

Generators & Backup