Gas detectors have limited lives
Great point Glenn, - limited life.
I follow a few threads for van conversions and I am stunned by the widespread use of Mr. Buddy portable heaters in unvented situations. They all claim to rely on CO detectors for safety. Russian roulette sounds safer. As Glenn pointed out about propane detectors, CO detectors also have a limited life. I think the outer limit is about 10 years. This is important information to share. Fortunately, I believe newer models beep relentlessly at the end of their lives. Older models, maybe not.