Re: PIRs for house with ceiling heating & cooling vents and "pets"!

["Roland Moore" <nospam@xxxxxxxxxx>]

 >Dual  technology is a good idea, but it's not a cure-all.

What do you mean? My dual techs chased out the ghosts haunting the place, as
well as a got rid of a bad case of the clap I had, both at the same time.
You got a better cure all do ya?

"Nomen Nescio" <nobody@xxxxxxxxx> wrote in message
news:b7431600b3405f35b14d434ba9368f19@xxxxxxxxxxxx
> eddy said:
>
> >Update on the drama with my system. The company has agreed to replace
> >the DSC pirs with Bosch Tritech units (They also call them blue line).
> >The bad news ... they cost a lot more.
>
> I've said this before, but it bears repeating:
>
> Don't automatically assume that all of your problems will be solved by
> installing dual technology detectors.  Detector placement is extremely
> important for reliable performance, and dual technology is not a
substitute
> for good installation practices.
>
> For example, I can think of a place that suddenly had LOTS of false alarms
> one night, even though dual tech sensors were in use.  No previous
> problems.  Turned out they had just gotten a new space heater (a big one,
> with a fan that blew hot air directly at the detector every twenty seconds
> or so).  You could stand there and watch the unit trip when the hot air
hit
> it!  That's an extreme case, and the fan was blowing very hard, even
though
> it was ten feet away.
>
> The point being, first install the detectors in the proper locations.
Dual
> technology is a good idea, but it's not a cure-all.
>
> - badenov
>