In message , Gib Bogle
writes
On 4/17/2011 8:40 AM, geoff wrote:

The gas pressure needs to be checked first, if it is low the gas and
fuel may not be mixing correctly.

Aah - the gas / fuel mixture

No chance of any carbon monoxide there

Just from first principles (no specific knowledge):

soot implies incomplete combustion

incomplete combustion can give CO


e.g. 4CH4 + 6O2 - C + 2CO + CO2 + 8H2O


It would if it was a gas / air mixture ...


Which is why they use a CO/CO2 meter, a Telegan for example

not really come across an oxygen meter in general use for measuring
combustion efficiency


--
geoff