At what temperature does lint ignite?

Answered by John Hunt

Lint ignites at a temperature of 511°F (266°C). This is known as the autoignition temperature of lint. When the air circulation in a dryer is not functioning properly, lint can accumulate in various parts of the machine, such as the drum motor and the heater box. If the lint is not able to escape, it can build up and eventually reach its autoignition temperature.

Lint is a highly flammable material, as it is primarily composed of small fibers and particles that can easily catch fire. It is important to note that lint fires are a relatively common cause of house fires, especially in dryers that are not properly maintained or cleaned.

The autoignition temperature is the minimum temperature at which a substance can ignite spontaneously without the presence of an external ignition source, such as a flame or spark. In the case of lint, this temperature is 511°F (266°C). Once the lint reaches this temperature, it can ignite on its own, leading to a potential fire hazard.

To prevent lint fires, it is crucial to ensure proper airflow in the dryer. Regularly cleaning the lint trap is an essential maintenance task, as it allows the lint to be captured and removed from the dryer during each cycle. Additionally, it is recommended to clean the dryer vent and exhaust duct periodically to prevent lint buildup.

Personal Experience: I once had a close call with a lint fire in my own home. I had been neglecting regular dryer maintenance and had noticed that my clothes were taking longer to dry. One day, while running a load of laundry, I smelled a strong burning odor coming from the dryer. Alarmed, I immediately stopped the dryer and unplugged it. Upon inspection, I discovered a significant amount of lint had accumulated around the drum motor area. Thankfully, the lint had not ignited, but it was a wake-up call for me to prioritize proper dryer maintenance. Since then, I have made it a habit to clean the lint trap after every use and regularly inspect and clean the dryer vent and exhaust duct.

Lint can ignite at a temperature of 511°F (266°C), known as its autoignition temperature. To prevent lint fires, it is crucial to ensure proper airflow in the dryer by regularly cleaning the lint trap, dryer vent, and exhaust duct. Neglecting dryer maintenance can lead to lint accumulation and increase the risk of fire. Stay vigilant and prioritize the safety of your home by maintaining your dryer properly.