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You seem to have very strong opinions about this issue. I'm not convinced they are well-supported by either experience or data. "Task 4. Determine Characterist

You seem to have very strong opinions about this issue. I'm not convinced they are well-supported by either experience or data. "Task 4. Determine Characteristics Required for Lint Ignition Lint that accumulates on the heater housing can easily ignite under conditions of a failed high-limit thermostat and a blocked exhaust vent. Lint accumulating near the heater intake can ignite before the high-limit thermostat switches the heater element off. Lint ingested by the heater and embers expelled from the heater outlet can easily ignite additional lint or fabric in the air stream, resulting in additional embers in the dryer system and exhaust vent." Source: https://www.cpsc.gov/PageFiles/117075/dryer.pdf https://www.cpsc.gov/PageFiles/117075/dryer.pdf

Dylan16807 9y ago
Oh, looks like the top result for dryer temperature was just wrong. And the various numbers I'm seeing for what temperatures are dangerous for lint are wildly inconsistent. But I can say for sure that those tested dryers are getting much hotter than necessary. Look at the designs on page 6 and 7. Small heater boxes with thin hot coils. If you redesigned it as a big block of heatsink fins with the heating element buried inside, you'd be a lot further away from causing ignition. It would cost more, but in a sub-$100 way. So I'm unsure at this point. I don't have the resources to test exactly what temperatures are necessary and safe, and which one is higher.