Re: Smoke alarms

["Doug" <doug@xxxxxxx>]

"nick markowitz" <nmarkowitz@xxxxxxxxx> wrote in message
news:54735ddb-0f03-417b-9102-23e13ebefd8b@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On May 2, 3:20 pm, Jim <alarmi...@xxxxxxx> wrote:
> On May 2, 1:57 pm, zig <wallstreet123...@xxxxxxxxx> wrote:

>The 10 year recommendation from NFPA is in regards to Ionization type
>smoke detectors not photo electric which you have as long as they pass
>yearly inspection there should be bo problems with them. how ever ESL
>does have to have a higher false alarm rate as they geet older and
>dirty if your going to replace them look at the System sensor brand I
>-3 Brand very good units and they warn if they get dirty.

My understanding is that the 10 year issue applies to smoke alarms, not
system connected smoke detectors and doesn't differentiate between
ionization & photo electric devices.

I'm not sure that smoke detectors have any such recommendation or
requirement unless specified by the manufacturer.

Doug