30 ppm carbon monoxide detector image
KaDy
Hi, My carbon monoxide detector said 11 about an hour ago, The pilot light went out on the gas fireplace. Is 11 bad? I have animals in my house and I want to make sure they are going to be okay. The detector says 0 now.
Answer
The carbon monoxide seems to be coming from the gas fireplace since carbon monoxide is produced by the incomplete burning(combustion) of solid, liquid, and gaseous fuels.If you smoke a couple of cigarettes, or someone had been smoking a cigar in the last hour, you could hit 11ppm CO in your home. Cigarette smokers exhale between 4 and 9 ppm CO all the time. And, if you're in a city, it's possible that the background CO rises to that level during the day. The mechanic's meter might hit 12-15 ppm standing in the middle of your back yard!
Besides, 11-12ppm CO may be ambient conditions and nothing to really worry about. It could also be "left over" output from cooking or some other activity. To make it even more complicated, the cheap CO meters and many residential CO detectors are cross-sensitive to other gasses, like methane, butane, alcohol, aerosols, etc. I've seen "Pam" cooking spray put a CO detector into alarm.
Besides, if you had been cooking, using the oven, heating water on the stove, or had a door or window open that could cause your flue(any duct or passage for air, gas, or the like) to down draft, you might see 5-20ppm in the house for a period of time. An oven will produce anywhere from 20 to 600 ppm when operating. Most run in the 30-100ppm range.
You should still check with the local firedepartment or call the company that made The detector your using.
The carbon monoxide seems to be coming from the gas fireplace since carbon monoxide is produced by the incomplete burning(combustion) of solid, liquid, and gaseous fuels.If you smoke a couple of cigarettes, or someone had been smoking a cigar in the last hour, you could hit 11ppm CO in your home. Cigarette smokers exhale between 4 and 9 ppm CO all the time. And, if you're in a city, it's possible that the background CO rises to that level during the day. The mechanic's meter might hit 12-15 ppm standing in the middle of your back yard!
Besides, 11-12ppm CO may be ambient conditions and nothing to really worry about. It could also be "left over" output from cooking or some other activity. To make it even more complicated, the cheap CO meters and many residential CO detectors are cross-sensitive to other gasses, like methane, butane, alcohol, aerosols, etc. I've seen "Pam" cooking spray put a CO detector into alarm.
Besides, if you had been cooking, using the oven, heating water on the stove, or had a door or window open that could cause your flue(any duct or passage for air, gas, or the like) to down draft, you might see 5-20ppm in the house for a period of time. An oven will produce anywhere from 20 to 600 ppm when operating. Most run in the 30-100ppm range.
You should still check with the local firedepartment or call the company that made The detector your using.
Carbon monoxide alarm went off?
Chris Marm
I have 2 carbon monoxide detectors. one behind my dryer and one upstairs by the bedrooms. one was beeping every 30 seconds which i believe means that there is a problem with the device, however i moved the one from upstairs into the spot where the alarming one was and when i press the test button a reading of 210 ppm comes up? what should i do?
Answer
http://en.wikipedia.org/wiki/Carbon_monoxide_poisoning
Readings above 100 ppm are dangerous.
I would turn down the heat (preferably off, if not too cold) and leave the house, and have a professional test it.
Assuming this is a standalone house, I assume that you have a gas furnace or water heater malfunctioning in your home.
I had first wondered if you had a malfunctioning unit - I had one once - but having your other monitor show that reading makes me want you to be safe.
http://en.wikipedia.org/wiki/Carbon_monoxide_poisoning
Readings above 100 ppm are dangerous.
I would turn down the heat (preferably off, if not too cold) and leave the house, and have a professional test it.
Assuming this is a standalone house, I assume that you have a gas furnace or water heater malfunctioning in your home.
I had first wondered if you had a malfunctioning unit - I had one once - but having your other monitor show that reading makes me want you to be safe.
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