Natural Gas vs Propane Generator in Toronto: Cost and Fuel Supply (2026)
Last updated:ByStandby Power Desk
Natural gas is the default in Toronto: a complete hookup with permit, inspection and pressure test is $800 to $2,000, per EcoFrost Heating and RenoHouse, and the supply does not empty. Propane adds $100 to $250 on the hookup plus $2,500 to $3,500 for an owned tank. Choose propane when Enbridge service does not reach the property.
Beyond the price gap, Home Generator Index's own dataset lists 74 HVAC and fuel line contractors across the Greater Toronto Area at an average Google rating of 4.77★ over 142,104 reviews (August 2026), so you can move straight from this verdict to a ranked shortlist of pros who do the work.
Home Generator Index reconciles conflicting contractor quotes by widening the range rather than picking a favourite, and reviews every figure before publishing.
Natural gas against Propane, line by line
Home Generator Index built this side-by-side from researched GTA pricing data, with every figure traceable to a named Canadian source in the cell that cites it.
| Criterion | Natural gas | Propane |
|---|---|---|
| Hookup cost | $800–$2,000 complete, covering the TSSA permit, inspection and pressure test. A 30–50 ft run from the meter alone is $1,200–$2,200 (EcoFrost Heating; RenoHouse) | The same hookup plus a $100–$250 propane premium (EcoFrost Heating) |
| Fuel storage | None. The line runs to the Enbridge main | A 500-gallon tank at $2,500–$3,500 owned and installed, or $200–$400 a year rented (RenoHouse) |
| Runtime | Effectively unlimited while the main holds pressure | A 500-gallon tank drains in 4 to 7 days of continuous full-load running (EcoFrost Heating) |
| Refuelling | Never | Scheduled deliveries, and the truck has to reach the property in the same weather that caused the outage |
| Meter and line capacity | If the meter or trunk line was sized for a furnace and water heater only, the generator can trigger an upsize at $300–$800, quoted and scheduled by Enbridge (EcoFrost Heating) | Not applicable. Tank size sets the capacity, and a bigger tank is the answer |
| Cold weather | Delivered at utility pressure year round | Propane vaporises more slowly in deep cold, so a tank sized for mild weather can under-deliver on the coldest night |
| Site work | $5–$12 per linear foot of pipe, $50–$150 per wall or floor penetration, and $300–$800 if the run has to be trenched across the property (EcoFrost Heating) | The tank needs its own setback and truck access, and a large new tank can trigger extra TSSA and fire-code setback requirements (RenoHouse) |
| Permits | TSSA fuel-gas permit $75–$150, plus the ESA electrical permit at $150–$350 for the generator's electrical side (EcoFrost Heating; Kolji Bros. Electrical) | The same TSSA and ESA permits, plus whatever the tank installation requires |
| If the gas main is what failed | The generator loses its fuel with it, though buried mains rarely fail alongside overhead power lines | Unaffected. The fuel is already on the property |
| Where it applies | Most Toronto homes already have Enbridge natural gas service, which makes this the default | The standard fallback for GTA properties without natural gas service, most often on the rural edges of the region |
Pick natural gas when
Natural gas is the default for a Toronto address, and the reasons are cost, runtime and the fact that nothing has to be delivered.
- The property already has Enbridge service, which most Toronto homes do. The work is a run from the meter, not a new fuel system.
- A complete hookup with permit, TSSA inspection and pressure test is $800–$2,000 (EcoFrost Heating; RenoHouse), against $2,500–$3,500 for a propane tank alone.
- The outage runs long. There is no tank to empty and no delivery to schedule.
- Keep the run short. A 30–50 ft run is $1,200–$2,200, and going past 60 ft adds another $500–$1,000 (RenoHouse).
- Check the meter first. If it was sized for a furnace and water heater, an upsize is $300–$800 and Enbridge schedules it separately from your installer.
Pick propane when
Propane is the answer when there is no gas main to connect to, and occasionally when independence from the utility is the point.
- There is no Enbridge service at the property. On the rural edges of the GTA this is common and propane is the standard fallback.
- Budget the tank, not just the hookup: $2,500–$3,500 owned and installed, or $200–$400 a year rented (RenoHouse).
- Size the tank for the outage you expect. A 500-gallon tank drains in 4 to 7 days at continuous full load (EcoFrost Heating).
- Plan the siting early. A large new tank can trigger extra TSSA and fire-code setback requirements on top of the standard permits (RenoHouse).
- The premium on the hookup itself is small: $100–$250 over a natural gas connection (EcoFrost Heating). The tank is where the money goes.
What does each cost on a real project?
Fuel-side cost for the same standby generator, using EcoFrost Heating's and RenoHouse's GTA figures:
- Natural gas: complete hookup, permit, inspection, pressure test
- $800–$2,000
- Propane: premium over a natural gas hookup
- $100–$250
- Propane: 500-gallon tank, owned and installed
- $2,500–$3,500
- Propane: 500-gallon tank, rented instead
- $200–$400 per year
- First-year gap, propane with an owned tank
- $2,600–$3,750
- First-year gap, propane with a rented tank
- $300–$650
The two gap lines above are the sum of the rows above them, not a quoted price. Propane costs $2,600 to $3,750 more in year one with an owned tank, or $300 to $650 with a rented one, and the rental keeps charging every year after. Against that, propane owes nothing to the utility. For a Toronto address already on Enbridge service, natural gas is both cheaper and simpler. For a property with no main at the road, propane is not a preference, it is the only option. Figures exclude 13 percent HST.
Frequently asked questions
Is a natural gas or propane generator cheaper to install in Toronto?
- Natural gas. A complete GTA hookup including the TSSA permit, inspection and pressure test runs $800 to $2,000 (EcoFrost Heating; RenoHouse). Propane adds $100 to $250 on the hookup itself, which is minor, but then adds $2,500 to $3,500 for a 500-gallon tank owned and installed, or $200 to $400 a year to rent one (RenoHouse).
How long will a propane tank run a standby generator?
- A 500-gallon tank can be drained in as little as 4 to 7 days of continuous full-load running (EcoFrost Heating). That is enough for most Ontario outages but not for all of them, and refills depend on a delivery truck reaching the property in the same weather that took the power out. Natural gas has no equivalent limit while the main holds pressure.
Does my gas meter need upgrading for a generator?
- Sometimes. If the existing meter or trunk line was sized only for a furnace and water heater, adding a generator's fuel demand can trigger a required upsize at $300 to $800 (EcoFrost Heating). Enbridge quotes and schedules that work directly with the homeowner, independently of the generator installer's own quote, so ask about it before signing.
Who is allowed to run the gas line for a generator in Ontario?
- A TSSA-licensed gas technician, working under a TSSA permit at $75 to $150 (EcoFrost Heating). That approval is separate from and in addition to the ESA electrical permit covering the transfer switch and wiring, which runs $150 to $350 for the generator's electrical side (Kolji Bros. Electrical). Two authorities, two permits, on every permanent installation.
Questions to ask your contractor
- Is your gas fitter TSSA certified, and whose name is on the gas work?
- Can you run the gas load calculation for the meter before I choose a unit? Gas line cost benchmarks
- Is the quote priced for natural gas or propane?
- If the meter needs upsizing, who submits that to the utility?
- Who fixes it if the gas inspection fails, you or the electrician?