Replies

1. 
   DanH | Feb 06, 2016 09:21am | #1

   Kidde and First Alert are two brands I've generally found to be trustworthy.

2. 
   mark122 | Feb 06, 2016 09:58am | #2

   I always use kidde, dont think its because it has been better per say but have not had any issues with them.

3. 
   renosteinke | Feb 06, 2016 12:12pm | #3

   A Few Details ...

   Current code expects you to use wired-in units with a battery back-up, and they're supposed to communicate with each other (if one sounds off, they ALL sound off). I'm not sure I agree with the 'logic' behind those requirements.

   Fortunately, there are models out that also have an indicator, telling you exactly which one went into alarm. Many also have 'reset' buttons, letting you silence them (say, with a broomstick).

   I agree with having the CO detectors apart from the smoke detectors. They are for different risks- and there's no reason to place them in the same places. The industry standard on the topic is absolutely no help at all in this matter.

   As  for the smoke detectors, I also like some of the extra features available. For example, the lights that also come on when the unit is in alarm.

   The debate as to whether 'ionization' or 'photoelectric' is best is endless. By combining both methods in one unit, though, I think you're only combining the problems of both types. I'd use different types in different areas.

   "Ion" types are prone to false alarms where there's hot grease in the air - for example, in the kitchen, as well as the dining / living area nearby, if the areas share a common ceiling. Hot cooking fumes travel along the ceiling, until they reach the detector.

   "Ion" detectors also have a limited life, perhaps eight years. I mark mine prominently with a 'replace on' date. I do the same for my CO detectors, which are even fussier about their 'expiration' date.

   Photoelectric detectors can -at least in theory- last forever. However, dust and extremely small insects can get inside and make them sound off.  In general, I prefer them, as they are better for detecting the smoky, smouldering fire than the 'ion' types. I will, however, switch to 'ion' types where I have problems with the photoelectric type.

   In general:

   "Ion" gets the nod within bedrooms.

   "Photo" wins in the living room, the dining room, and similar areas.

   The kitchen and bath get no smoke alarm at all.

   CO detectors I place on the wall, near the bed's headboard, about 4 ft. off the floor. The only time I see CO being a real threat is when I'm asleep.

1. 
   jimmiem | Feb 06, 2016 06:32pm | #4

   Good Info

   Good info....one and all.

   Thank You.

4. 
   Condoman | Feb 07, 2016 09:33am | #5

   I recently saw an article in a magazine that indicated a wired system could have one unit replaced with their "bridge" detector and then other detetctors could communicate wirelessly with remote units.  This may be an option if yours are not wired to do that.