HVAC safety isn't something most Ottawa homeowners think about until there's a problem. But gas-burning heating equipment carries real risks if not properly maintained and monitored.
Here's what every Ottawa homeowner needs to know to keep their family safe.
Carbon Monoxide: The Silent Killer
What it is: Colourless, odourless gas produced by incomplete combustion in gas furnaces, water heaters, and fireplaces
How it happens: Cracked heat exchangers, blocked vents, or malfunctioning burners can allow CO into your home's air supply
Symptoms (often mistaken for flu): - Headache and dizziness - Nausea and confusion - Shortness of breath - Symptoms that improve when you leave the house
If your CO detector alarms: Get everyone outside immediately and call 911. Don't try to find the source — get out first.
CO Detector Requirements
Ontario law requires CO detectors: - Outside all sleeping areas - On every level with a fuel-burning appliance - Near attached garages
Best practices: - Test monthly, replace batteries annually - Replace detectors every 7-10 years - Install at breathing height (5 feet from floor) - Don't place near windows or bathrooms
Types: - Battery-powered: $25-$40 - Plug-in with backup battery: $30-$50 - Hardwired: $100-$200 installed - Combination smoke/CO: $40-$60
Warning Signs to Watch For
Your furnace may be unsafe if:
- Yellow or orange burner flame (should be blue)
- Soot or black marks around the furnace
- Excessive condensation on windows during heating
- Rust on vent pipes or chimney connections
- Pilot light frequently goes out
- Strange smells when furnace is running
Any of these signs warrant immediate professional inspection. Don't ignore them.
Prevention Through Maintenance
Annual professional maintenance is your best protection:
- Heat exchanger inspection (visual and camera)
- Combustion analysis (measures CO in flue gases)
- Burner cleaning and adjustment
- Vent pipe and chimney inspection
- Safety control testing
Cost: $150-$250 per year What it prevents: CO poisoning, gas leaks, house fires
Additional safety steps: - Never block furnace room vents or air supply - Keep flammable materials away from furnace - Don't use furnace room for storage - Ensure exhaust vents are clear of snow and ice
The Bottom Line
HVAC safety comes down to three things: working CO detectors, annual professional maintenance, and knowing the warning signs. A $200 maintenance visit can literally save lives.
Due for a safety inspection? Send the details through this site and we will match you with Ottawa HVAC contractors who do annual maintenance and safety checks.
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