More information on home installation . Heat detectors are no substitute for smoke detectors. They set off an alarm in response to heat only. They do add protection and can be helpful in basements, kitchens, attics and garages. But for life safety purposes be sure your home is protected by a smoke detector.
Every detector comes with testing instructions.
Activating the testing mechanism once a month should be sufficient. Always test battery powered detectors after a vacation or having been away from home for a week or more. The battery may have gone dead and you may have missed its warning alarm. Vacuum the detector once or twice a year to remove any dust or cobwebs. This will cut down on false alarms.