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doozer
 
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A yellow flame is an indication that less than the optimal amount of
oxygen is being using during combustion and some carbon is being
produced (carbon monoxide will also be produced under these
circumstances but as long as you have a good draw on your chimney that's
not a problem). I am not a gas fire specialist, BTW, but that is why the
flame is yellow.

Graham

Fray Bentos wrote:
Hello all. I have a gas fire.

http://www.gasapplianceguide.co.uk/R...Black_03_1.jpg

anyway the middle 2 bars burn blue with the top quarter yellowish. The outer
two bars are blue / orange normal

I have cleaned the jets that feed the venturi (?) and the venturi (?) itself

the venturi is the block with the holes in that the gas burns from. (i
think)

Why is this ? the flue/chimney is good with air being drawn through and
besides, the outer two bars are ok.

tia