Hi, I was just bleeding my radiators, which were really airlocked, and my Carbon Monoxide alarm went off for the first time ever! It's good to know it's working, but is this normal? I had a massive scare, having to get myself and two terrified kittens out of the house!I've opened the windows and left it about 1/2 an hour, is that long enough? The CO alarm has stopped going off now. Do I need to get my central heating checked out by an engineer?
there is no magic expiration. but inspectors require that they are inspected every so often. but the date on it is a best guess by the maker. nothing magic. some I have had longer than expiration. some not so long. is there a gauge on it? or just test fire it with a quick pull and release.
Peter is right that deluge are rare, I've never actually seen one. they make good comedy or action drama. Most heads operate individually at a set point of 135-170°F, when they do open water flow is detected in a main pipe that feeds it, and that triggers the alarm.
I absolutely love the fact that I can take my Hujoo Lily to doll club meetings or out for a photo shoot without worrying that she will break or turn yellow. There are Hujoo dolls in SD and MSD size now, both fairly realistic and stylized.
It's not an expiration date, like that found on food, where something goes bad smelly etc., but rather a recommended length of predictably reliable service. One might be functional well past the stated date - but, with the purpose it has, do you want to count on that?
