Re: Smoke alarms

[Jim <alarminex@xxxxxxx>]

On May 2, 4:36=A0pm, "Doug" <d...@xxxxxxx> wrote:
> "nick markowitz" <nmarkow...@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

System smoke detectors have no limit on how long they can be
installed. They should be checked and if not working, change them.