I am putting together a purchase order for a DSC PowerSeries Neo system. This system supports both hard-wired and their PowerG Wireless detectors. It is an existing house so I’m hoping to mostly use wireless, and I am considering how to best protect the attached garage from intrusion and fire.
In my current house, in a municipality far far away, we could only install a heat detector in the garage, not a smoke. I was told that this was code to prevent false alarms. The DSC PowerG Wireless products do not include a heat-only detector, so for that I’d need to run wire.
What is the general wisdom about how to protect an attached garage from intrusion and fire?
Am I really asking for trouble installing a smoke or smoke/heat detector? Presumably, the garage doors will be wide open for what should be a very brief moment that a running vehicle will be inside, with tailpipe pointing out, and of course someone (the driver) would be present during that time. However, we might have just parked a hot car shortly before catching a ride to the airport, and I wonder if that could set off a smoke say 10 or 15 minutes later.
Also, is a motion detector in the garage prone to suffering false alarms from latent heat waves wafting off a parked vehicle, or from winds blowing through all of the cracks in the garage doors?