SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/home-a-heat-rating

A garage heat alarm should be rated for what temperature range?

175 to 250 degrees F.

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  1. 90 to 110 degrees F
  2. 175 to 250 degrees F ✔
  3. 300 to 400 degrees F

Why: Alarms rated lower may sound just because a garage rises above 100 degrees F. Alarms rated higher may sound too late to warn you of a real fire.

Huh, didn't know that: USFA also says to have a hard-wired heat alarm installed by a qualified electrician and not put it near fluorescent lights.

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References

Answer: 175 to 250 degrees F. Alarms rated lower may sound just because a garage rises above 100 degrees F. Alarms rated higher may sound too late to warn you of a real fire.

  1. US Fire Administration: Heat Alarms www.usfa.fema.gov/prevention/home-fires/prepare-for-fire/heat-alarms
    Purchase a heat alarm that is rated for temperatures between 175-250 degrees F.
    Checked 2026-10-10.

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