Re: Heat sensor in the attic

["Frank Olson" <feolson@xxxxxxxxxx>]

"Robert L. Bass" <robertlbass@xxxxxxxxxxx> wrote in message
news:zsSdnelrmtn_yvHfRVn-qA@xxxxxxxxxxxxxx
>> The 604 is a fixed temp 200 degree heat
>> detector.  If you're considering putting
>> one up there, go with that.  A RoR won't
>> work in attics (even a high temp one).
>> You're liable to get some false alarms.
>
> I disagree.  The 602 (RoR) is designed for use in attics.  I've installed
> hundreds of them in attics with no problems at all.  Attic temperature can
> go high but it won't generally rise fast enough to set off a rate-of-rise
> heat detector.  Just be sure to use a detector that's rated for at least
> 190ºF.  There are several brands which range from 194 to 200 degrees.
> They all perform about the same.

I've seen RoR detectors set off in attics.  The issues disappeared when we
replaced them with fixed temps.  The problem with attics is that they're
prone to humidity as well as heat (at least they are here) which plays havoc
with RoR's in time.