[Stoves] Making testing equipment for CO and O2

[Steve Taylor]

Paul S. Anderson wrote:
> Stovers,   (especially Tami, Crispin, Charlie, and other emissions techies)
>
> So nice to see many of you again at ETHOS!!!
>
> I am still on the drive home, stuck in Rock Spring Wyoming with snow blockage of
> I-80!!!!!   We are fine and will eventually get home.
>
> Can you help me and many others concerning emissions testing?  And maybe make a
> small business for yourself or someone?
>
> We watched Crispin with his emissions sensor device. 

Do you HAVE to sample the gas at high temperatures ? I use special 
things called "Nernst Cells" in my professional work, designing 
scientific instruments, and I can buy them VERY cheaply (<60 USD each) - 
the outputs are linear with gas concentrations, and they are available 
sensitis(z)ed to O2, CO, CO2, CH4 and others.

Electrically the output is not terribly easy to handle, but needs fairly 
minimal electronics, once you know what you are doing. The output from 
up to 8 different cells can be recorded for much less than 400 USD, the 
conditioning electronics would cost about 30-40 USD per cell, tops.

Steve