Alberta · Energy · checked September 28, 2026

Combustion safety testing in Sherwood Park

A combustion safety test checks that your furnace, water heater and fireplace vent their exhaust outside instead of into the house, which matters most right before and after you tighten the house up. In the Edmonton area, the main heating energy is natural gas for 74% of households.

Get matched in Sherwood Park → The combustion safety and spillage check
A gloved hand inserting a combustion analyzer probe into a furnace flue pipe in a basement

Cost

Included with an evaluation

Natural gas heat

74%

Gas distributor

ATCO Gas

CO alarms required (existing homes)

No

How Sherwood Park is built

Sherwood Park's houses by when they were built Ten house shapes, one for each tenth of Sherwood Park's 34,290 houses. Before 1961: 4%, 1961–1990: 42%, 1991–2000: 19%, 2001 or later: 35%. Older houses glow hotter.
  • Before 1961 4%
  • 1961–1990 42%
  • 1991–2000 19%
  • 2001 or later 35%
Each house stands for one in ten of Sherwood Park's 34,290 houses (single-detached, semi-detached, row and duplex), drawn by when it was built. The glow shows the usual pattern: older houses tend to be leakier and less insulated. Snowfall scales with heating degree-days. Sources: Statistics Canada 2021 Census (table 98-10-0233-01), NRCan HOT2000 climate data.

Why it matters in Sherwood Park

In the Edmonton area, 79% of households heat mainly with a forced-air furnace and 8% with a boiler and radiators; natural gas is the main heating energy for 74% of households and electricity for 15% (Statistics Canada, 2023).

The risk rises after air sealing: a tighter house plus a strong exhaust fan or dryer can pull exhaust back down a chimney. That's why advisors test for spillage during an evaluation and why it should be repeated after serious tightening.

The CO alarm rule in Alberta

Alberta requires CO alarms in new homes with a fuel-burning appliance or attached garage; for existing homes the province calls them highly recommended rather than mandatory.

What the check involves

  • Worst-case depressurization: exhaust fans and the dryer on, doors set to make the appliance room as negative as it gets.
  • A spillage and draft check at each appliance, with a CO reading.
  • A plan if anything fails: often a sealed-combustion appliance or a fix to the venting, done by a licensed gas or oil technician.

The combustion safety check in detail.

NRCan-licensed service organizations serving Sherwood Park

Energy advisors check for combustion spillage during an evaluation; fixing a venting problem is work for a licensed gas or oil technician.

Source: NRCan list of licensed service organizations, checked September 28, 2026. Call to confirm your street is covered and ask about wait times.

Combustion safety test in Sherwood Park: common questions

Are CO alarms required in Sherwood Park homes?

Alberta requires CO alarms in new homes with a fuel-burning appliance or attached garage; for existing homes the province calls them highly recommended rather than mandatory.

Who does combustion safety testing?

Energy advisors check for spillage during an EnerGuide evaluation. Repairs to venting or appliances are done by a licensed gas or oil technician.

I have CO alarms. Isn't that enough?

Alarms warn you once CO is already in the house. A spillage test finds a venting problem before it produces CO.

Combustion safety test near Sherwood Park

Combustion safety test in Edmonton21 kmCombustion safety test in Red Deer144 kmCombustion safety test in Calgary279 kmCombustion safety test in Lethbridge427 kmCombustion safety test in Saskatoon465 km All 70 cities →

Sources

Checked September 28, 2026. Census figures are for the municipality (Alberta); climate data is NRCan's HOT2000 station Elk Island (29 km away).

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