British Columbia · Energy · checked September 28, 2026

Combustion safety testing in Coquitlam

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 Vancouver area, the main heating energy is natural gas for 42% of households.

Get matched in Coquitlam → 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

42%

Gas distributor

FortisBC

CO alarms required (existing homes)

No

How Coquitlam is built

Coquitlam's houses by when they were built Ten house shapes, one for each tenth of Coquitlam's 35,695 houses. Before 1961: 8%, 1961–1990: 47%, 1991–2000: 18%, 2001 or later: 26%. Older houses glow hotter.
  • Before 1961 8%
  • 1961–1990 47%
  • 1991–2000 18%
  • 2001 or later 26%
Each house stands for one in ten of Coquitlam's 35,695 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 Coquitlam

In the Vancouver area, 32% of households heat mainly with a forced-air furnace, 31% with electric baseboards, 12% with a boiler and radiators and 5% with a heat pump; natural gas is the main heating energy for 42% of households and electricity for 39% (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 British Columbia

B.C. doesn't require CO alarms in existing homes; the province recommends them wherever there's a fuel-burning appliance, fireplace or attached garage, and the building code requires them in new homes.

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 Coquitlam

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.

Programs in Coquitlam

Provincial · needs an evaluation BC Home Energy Improvement Bonus $20 for every percentage-point your home improves — $750 minimum, $2,000 maximum — or $300 for any two upgrades Open

Combustion safety test in Coquitlam: common questions

Are CO alarms required in Coquitlam homes?

B.C. doesn't require CO alarms in existing homes; the province recommends them wherever there's a fuel-burning appliance, fireplace or attached garage, and the building code requires them in new homes.

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 Coquitlam

Combustion safety test in Burnaby8 kmCombustion safety test in Surrey14 kmCombustion safety test in Vancouver18 kmCombustion safety test in Delta20 kmCombustion safety test in Richmond21 km All 70 cities →

Sources

Checked September 28, 2026. Census figures are for the municipality (British Columbia); climate data is NRCan's HOT2000 station Pitt Meadows (13 km away).

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