On Mon, 27 Feb 2006 15:34:21 -0500, Roger Sisler <rogersisler2000@YAHOO.COM>
wrote:

>A house carbon monoxide detector has a 0-999ppm meter, Dont know how this
>will corrospond with percentage of CO though. I duct taped one to my
>expantion tank opening to see if I was getting any CO in my exhaust. I cut
>open a 1 gallon milk jug and placed it inside and then taped it shut and to
>the tank opening. Then  Iplugged in the extention  cord and waited. No CO
>was present.Do you suppose one could place a meter near the exhaust and get
>an accurate ppm of CO, without melting the detector?

Roger,

I would think that even if you could do this without melting the detector, the
concentration of C02 in your exhaust is so much higher than in your house
(one hopes, anyway) that the house-device wouldn't read it. Could be wrong.
Interesting to try, just holding one up to the tailpipe--but what would it
tell you that you didn't already know?