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I have a heat detector on the ceiling in my garage that is almost 30 years old (looks original to the house). I believe it is a fixed temperature heat detector. Anyhow, the item looks very old, its casing is cracked in a few places, and there is a yellowish goo dried along the cracks. I want to remove this heat detector but am wondering about the goo and if it could be anything toxic. Thanks!
Sounds scary enough! I don’t know what the goo could be however it’s best to treat it as if it is toxic. You should use protective gloves when removing it and place the unit inside a plastic bag, maybe two bags. You could check with the local fire department about the unit and they may also know best how to dispose of it.
Usually it is a bi-metalliac sensing unit. I can't think of any "goo" that would seep out of a heat detector... unless it is battery operated and the battery is totally corroded and that is what you are seeing. If you are concerned, just stop into any HD, Lowes, etc... and pick up a pair (or cheap box) of Nitril gloves and use them when taking down the old detector. They are good for acids, bases, chemicals, just about anything you can throw at them in a household setting. I always keep a box in my truck for situations like this. Plus I just don't like getting gross crap on my hands even if it is "harmless.
There are two types of fire alarm. One of them has a small amount of radioactive material. If so it will be marked. Such a detector should be disposed of properly* (sometimes the places that sell the replacement will take it in return).
And by the way- no, they do not represent a health hazard, unless you are in the habit of taking smoke detectors apart and eating the pieces.
* I did read that in some cities newer smoke detectors can just go into the garbage.
No, it's definitely not a smoke detector, it's a heat detector. I had never heard of this until I started researching it. This just detects heat, not smoke, and is meant for use in places like garages. It is very old, probably 30 years old, and is original to the house I am assuming.
Not sure what the goo is, maybe just some of the adhesive holding it together.
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