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Carbon Monoxide: How Your Choice of Heat Can Kill You

by James Hubbard, M.D., M.P.H.

Group of lit lanternsCDC. A family of four found is found dead in a two-room tent with the propane heater still running. The cause of death: carbon monoxide poisoning.

A father and son fall asleep in their charcoal-heated tent. They don’t wake up.

Your choice of heat can kill you without singeing a hair.

Carbon monoxide is colorless and orderless—a silent killer. It’ s the leading cause of poisoning deaths. How can you ensure you or your family isn’t its next victim? When you’re camping or the heat goes off, remember that unless you have a working chimney, makeshift heating may be your greatest danger.


[Electricity's Out]

Carbon Monoxide Sources

Carbon monoxide is a byproduct of burning fossil (carbon) fuels. This includes

Everyday Poison Prevention

To prevent carbon monoxide poisoning from household heating, have a working carbon monoxide monitor on every floor, and make sure your heating units get checked regularly for leaks.

  • gas (diesel, gasoline for the car, kerosene, propane)
  • paper
  • candles
  • coal
  • charcoal
  • wood

With any heat source other than pure electricity, you must vent the fumes to the outside or risk carbon monoxide poisoning. The venting must have no leaks. No exceptions.

Some supposedly haunted houses have been explained by hallucinations from carbon monoxide poisoning.


[Headaches and Hauntings]
Signs and Symptoms of Carbon Monoxide Poisoning

Think flu symptoms without the fever—headaches, drowsiness, heart palpitations to name a few. Add depression, even hallucinations, for low-dose, long-term exposures. Some supposedly haunted houses have been explained by the residents’ chronic carbon monoxide poisoning and resultant hallucinations.


[Get Out]
Treatment for Carbon Monoxide Poisoning

The treatment is oxygen—pure oxygen if you have a tank. Most people don’t, so go outside for fresh air. Of course, call an ambulance if needed and one’s available.


[Frog in a Frying Pan]

How Carbon Monoxide Poisoning Works

Carbon monoxide kills by replacing the oxygen in your red blood cells. It sticks on the cell where the oxygen should be and won’t let go. Inhaling carbon dioxide slowly deprives your body of essential oxygen, and you never even get short of breath. Kind of like the proverbial frog in the frying pan. Supposedly, if you turn the heat up gradually, it won’t even know it’s burning to death. With carbon monoxide, you go to sleep and don’t wake up.

As for the best methods for venting, that’s not my expertise. I would appreciate tips.

  • Loyce McGee

    I have a large collection of oil lamps and candles that I use all the time in winter. Many times when the electricity goes out, I light up 3 or 4 lamps and a few smaller ones around the house. My home is about 1500 sq ft, but the lamps keep it fairly warm, with sweaters and socks, and I have never had a problem so far. Am I in any danger from my lamps??

    • http://www.thesurvivaldoctor.com James Hubbard, M.D., M.P.H.

      Loyce, There’s a small risk. Make sure you have a carbon monoxide monitor with battery backup on every floor.

  • http://www.caseyschimneyservice.com Valerie C

    Thank you for posting this!!! I am considered to be one of the foremost experts in my state on this subject and so many people just don’t get it! I can’t tell you how many horror stories I have with regard to this! Everyone should know the dangers of carbon monoxide. And Please– Know where to put your detectors!

    • http://www.thesurvivaldoctor.com James Hubbard, M.D., M.P.H.

      Valerie, Thanks for the advice.

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  • http://FB Charlotte Giles

    We use a ventless wall gas heater in a large romm that use to be a garage and we plan on putting in the living room a ventless gas fireplace you can buy at Lowes. Are these dangerous and can they cause CO poisioning?

    • lori c

      I also use one of these to heat my house. Directions that come with it say to crack a window to allow oxygen in. I have never done this, but my house isn’t as ‘tight’ as some newer homes-lots of existing drafts. I have never had any CO2 issues, but I DO have a CO2 detector, just in case!

    • http://www.thesurvivaldoctor.com James Hubbard, M.D., M.P.H.

      Charlotte, I’m not even close to an expert on ventless heat, but it seems like a bad idea. The fumes have to go somewhere. At least, get a carbon monoxide alarm and put it in your garage/room and see if it detects any.

  • http://morelhunters.com Kawryan
    • Kegan

      Sorry but this is still Propane which produces carbon monoxide.

      One trick is to use some of the heated up Rocks from your campfire.

      • kat

        Heated rocks are great when camping. But you have to be careful about the rocks you chose. I’ve heard some can ‘pop’ or explode when heated in the fire.

        • http://www.thesurvivaldoctor.com James Hubbard, M.D., M.P.H.

          Kat, really. Do you know how to tell which ones are susceptible to this?

          • cavinfamily

            it’s my understanding that you want to avoid any rocks that have been submerged in water, like from a river bed or stream. they can contain water inside, and when that water comes to a boil, the pressure can cause the rocks to break.

            as for the buddy heaters, i did notice that the 2 larger ones have an automatic low oxygen shutoff, and the small one has a low oxygen alarm. guess it depends on how much you trust the products.

          • http://www.thesurvivaldoctor.com James Hubbard, M.D., M.P.H.

            Thanks, cavinfamily. Good info to know.

  • Rachael

    We are getting ready to camp out in a tent. We planned to use a plug in heater. Is there
    one the you recommend for these conditions?

    Thank you,
    Rachael

    • Sheila

      Rachael, if your overnight lows only get to 0 C or 32 F, you can use an in-car heater. If you live in a warm climate, then you’ve likely never heard of those, but in Canada, they’re pretty common, especially on the Prairies. These heaters don’t get overly hot, so low risk of burning. I’ve used them for tenting in the summer on cooler nights.

    • http://www.thesurvivaldoctor.com James Hubbard, M.D., M.P.H.

      Rachael, I really don’t know. Maybe a ceramic one? Just a guess. What model I don’t know. I’d ask someone more qualified, that goes camping a lot.

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  • http://www.thesurvivaldoctor.com James Hubbard, M.D., M.P.H.

    Thanks for your insight, Paul. I don’t treat a emergency room’s any more, but I understand hyperbarics is the way to go if it’s available.

  • Paul (old RT)

    CO poisoning has always intrigued me because how so many people are sadly clueless as to it’s dangers and the situations they will get themselves in ! While living and working in North Central Montana (small county Hospital on the hi-line) We would always see at least one family (never the same) around Christmas time, present themselves to the ER all with “flu” like symptoms yet very flushed faces, So out came the non-rebreathing masks and a few hours on O2 !

    What I found interesting was encountering “long term” CO poisoning versus acute CO poisoning. Not having access to hyperbarics (over 80 miles away at Great Falls, Mt or Spokane, Wa)

    I had the great opportunity while living and working at BAMC, Ft Sam Houston in San Antonio to visit and study ther research being conducted at Brooks Aerospace HyperBarics Research Facility.

    Not only the Cure to CO poisoning but how it was inhancing the healing process of tissue!

    Paul (an Old RT !)

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