Does a dryer vent get hot enough to set faced insulation on fire?

  • what type of insulation material is it
    – Traveler
    Jun 22, 2022 at 5:02
  • That will not burn, at worst it might melt a little.
    – Traveler
    Jun 22, 2022 at 5:17
  • 1
    only if your dryer gets hot enough to set your clothes on fire.
    – Jasen
    Jun 22, 2022 at 8:26
  • Distance matters. The real hot spot is inside of the dryer right beside/behind your clothes. The vent coming out of the dryer, is almost a foot away, and there might be too hot to touch with skin. A foot from that spot it will be quite warm to skin. As long as everything is working well. A lint or other fire changes things.
    – crip659
    Jun 22, 2022 at 12:10

2 Answers 2


No. A fire in a dryer vent is more likely to be due to lint build up.


Your fiberglas does not burn easy, it could melt but at very high temperatures.

Much higher then the dryer went could ever produce.

fiber glas

It is advisable to clean the vent once in while to remove the lint and improve the air flow

  • What about the Kraft paper, faced side of the insulation?
    – Ball
    Jun 22, 2022 at 6:55
  • That one can burn, but let me ask, at what temperature do you run your dryer ?
    – Traveler
    Jun 22, 2022 at 7:16
  • On low/medium for the most part.
    – Ball
    Jun 22, 2022 at 13:53

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