Fire Prevention

Dryer Fires are Entirely Preventable!

Dryer fires are a significant fire hazard in Canada, with lint buildup being the leading cause. Annually, around 15,000 dryer fires occur in Canada, resulting in smoke damage, property loss, and even potential loss of life. Regular maintenance, including cleaning the lint trap and dryer vent, is crucial for preventing these fires. 

Key Statistics and Facts:

  • Lint buildup is the primary cause of dryer fires. 
  • Approximately 15,000 dryer fires occur in Canada each year, according to isure.ca. 
  • In Toronto, there are roughly 39 dryer fires annually. 
  • Dryer fires represent a significant portion of appliance fires, with some sources indicating 92%. 
  • In Ontario, over a five-year period, 670 fires involved dryers and washing machines. 

Prevention Tips:

  • Regular Cleaning: Clean the lint filter after each use and remove lint from the dryer vent and surrounding area regularly, preferably at least once a year. 
  • Proper Venting: Ensure your dryer is properly vented to the outside with a rigid or flexible metal duct. Avoid plastic or foil ducts, which can sag and trap lint. 

A typical residential clothes dryer exhausts air at a rate of 150-200 CFM (cubic feet per minute). However, some newer, high-end dryers can reach up to 300 CFM, while older or lower-quality dryers might only exhaust around 100 CFM. The ideal CFM depends on the dryer model and vent length, with shorter vents generally allowing for higher CFM according to teachersductandvent.com. 

 Velocity

How much airflow should a dryer vent have?

The minimum duct air velocity during normal operating conditions should be at least 1,200 FPM (feet per minute) to keep lint moving through the vent. (In a 4" (102 mm) diameter pipe, this requires at least 105 CFM of air flow.)

 Here's a more detailed breakdown:

·       Typical Range:

Most residential dryers fall within the 150-200 CFM range according to teachersductandvent.com. 

·       High-End Dryers:

Newer, high-end models can push up to 300 CFM. 

·       Older Dryers:

Older or lower-quality dryers may have a lower CFM output, sometimes as low as 100 CFM. 

·       Venting System:

The dryer's vent system (length, number of bends, etc.) can affect the actual CFM achieved. Shorter vents with fewer bends generally allow for higher CFM according to teachersductandvent.com. 

·       Make-up Air:

For dryers exhausting more than 200 CFM, the International Mechanical Code (IMC) requires make-up air to be provided to the laundry room. 

·       Back Pressure:

The dryer's exhaust system should maintain a back pressure between 0" and 0.6" of water column when measured at the dryer connection according to Canadian Appliance Source. 

 

BEST Dryer Vent (Material)

 

A rigid metal duct tends to be the best type of dryer vent hose. This tube provides a straight, direct line to the outside. Its inner wall is smooth, and it lacks the ribs found in flexible dryer hoses.

 

Professional Installation: Have your dryer installed by a qualified professional and follow the manufacturer's instructions. 

  • Avoid Overloading: Avoid overloading the dryer, as this can restrict airflow and increase the risk of overheating. 
  • Be Mindful of Dryer Sheets: Dryer sheets can also contribute to lint buildup, so clean them regularly. 
  • Inspect and Replace: Regularly inspect the lint filter and vent for damage and replace them if necessary. 
  • Don't Leave Dryer Running Unattended: Especially when you are not at home, according to CTV News. 

Signs of Potential Dryer Issues:

  • Decreased drying performance (drying times are longer).
  • The dryer feels excessively hot or not hot enough.
  • The dryer vent flap has trouble opening or is visibly clogged.
  • The "check filter" light on the dryer is illuminated. 

In Case of a Dryer Fire:

  1. Stay Calm and Alert: Prioritize safety and ensure everyone evacuates the premises.
  1. Cut off Power: If safe to do so, unplug the dryer or switch off the power supply.
  1. Call Emergency Services: Contact the fire department immediately.
  1. Extinguish (if safe): If you have a fire extinguisher and feel confident using it, attempt to put out the fire, but do not jeopardize your safety.
  1. Close the Door: If the fire is contained within the dryer, close the door to help contain the flames.