On 6/13/2015 1:19 AM, Sal M. O'Nella wrote:


"Dave Platt" wrote in message ...


Most of what I see on the Net says that replacing smoke detectors
after 8-10 years is recommended.

===============================================
I agree in principle. However, this past Wednesday, we cooked
hamburgers in the kitchen. One of two side-by-side smoke detectors in
the hallway (~20 ft) went to alarm. The one that didn't alarm is three
years old. The one that did alarm was bought in 1978. I remember the
year because I bought it for my barracks room while I was still in the
Navy. 37 years and still kicking. I buy it a new battery every year on
my birthday -- sort of a reverse present.

Based on failure data, an 8 - 10 year replacement cycle may be advisable
but they do last longer.

"Sal"
(KD6VKW)

Which proves it needs replacement. It's calibration is off. False
alarms are almost as bad as missing real alarms.

It's not a matter of them working or not - it's a matter of them working
*correctly* or not. This means not only sounding when there is a fire,
but *not sounding* when there is *no fire*.

--
==================
Remove the "x" from my email address
Jerry, AI0K

==================