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 Re: [RC] Heaters in trailers - Gary FendThe molecular weight of CO is about the same as air so I don't think  it would sink to the bottom of the trailer.  In fact, since it is a  product of incomplete combustion, and therefore warm, it would rise to the top of the trailer.  Open your roof vent and you should be safe from CO poisoning.     Gary   Mike Lewis <mikelewis@xxxxxxxxxxxxxxx> wrote: 
 
 
 
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