are there two different types of smoke alarms?

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Old 11-21-13, 09:31 PM
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are there two different types of smoke alarms?

We have what I think is an older type. It goes off when someone has taken a shower - so would that be the type that detects heat? and I thought the other type was the one that detects particles. We are tired of the shower setting it off. What type would not go off for the shower? Am I understanding this right? Thanks.
 
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Old 11-21-13, 09:53 PM
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There are two types: photoelectric and ionization. The steam from the shower condenses inside the unit setting it off. Both models are affected. It has nothing to do with heat.

A smoke detector should not be installed within 3' of a bathroom door and certainly not in a bathroom with a shower.
 
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Old 11-22-13, 02:54 AM
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Also, if you have ionization smokes (the most typical residential smoke alarm) that are more than 5-7 years old, it is not uncommon for them to fail in the hyper-sensitive range.

If they are fairly old, try replacing the smokes, with new photo-electric models.

Sometimes the original builders put the smokes in bad locations.
 
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Old 11-22-13, 09:16 AM
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Thank you! I will do that.
 
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