What Size Generator Does Your Home Need?

Four questions. You'll get a starting size class and a rough installed range — the site check turns it into an exact number.

How many outages did you have last year?

None

1–2

3 or more

What fuel could a generator use at your home?

Natural gas line

Propane

Neither yet

What do you want covered in an outage?

The whole home

Essentials onlyHeat, well & sump pumps, fridge, some lights

Not sure yet

How big is your home?

Under 1,200 sq ft

1,200–1,800 sq ft

1,800–2,400 sq ft

Over 2,400 sq ft

Your size class is ready — where do we send it?

Leave your details to see it, along with the option of a site check for exact sizing.

Your generator size class

Calculated from your answers

Enter your details to see your starting size class and a rough installed range.

Full name

Phone

I'd like a local advisor to contact me about a standby generator.

Handled by one local advisor — never a call list.

Your details are used only to follow up about your generator sizing. Nothing is sold or shared.

Your starting estimate

Lead captured — Source: Generators page

Want it sized exactly?

A local advisor can help you through this process — a site check tallies your real loads (pump and motor starting surges included), confirms placement and fuel, and gives you a written installed quote.

Heating costs too? See your rebate and your monthly number →

Heat Pump Rebate Ontario Check Your Rebate Switching From Oil Heat Pump Cost Ductless Heat Pumps Backup Heat Heat Pumps in Winter Tank Removal Federal Rebate Why Now Heating With Propane Electric Baseboards Furnace Died? Get Out of a Water Heater Rental Rental Buyout: How It Works Rent vs Own a Water Heater Tankless vs Tank Water Treatment Well Water Standby Generators Kawartha Lakes Lindsay Peterborough Northumberland County Port Hope Cobourg Belleville / Quinte Bowmanville / Clarington How It Works

CheckMyRebate.ca is an independent guide for Ontario homeowners, run by a local home comfort advisor in Durham Region. Not affiliated with the Government of Ontario or the Government of Canada. Rebate figures verified October 2026 — programs can change or close at any time.

OilSwitch.ca is a companion address for this guide and points here.