gas cooker tuning

[voovon]

How do you tune a gas cooker please?  The flashes of yellow in flame never go so it can't be food.  Gas engineer who inspected burners says it's carbon but didn't say the cooker can be tuned.  I've had cooker for a month and it's always had this problem.  I didn't like it when he said it's normal,  I and think it's not normal.

[sglazier]

hi voovon

i was only guessing that it needs tuning, i was thinking of bunsen burners at school where you had to block out the air to get a pure blue flame.. and an engineer would know how to do the same on a cooker

but i agree . i dont think its normal

[booksworth]

Go and look at other peoples' cookers. Ours flashes - if you look carefully you can see tiny glowing specs at the base of each flash. I think they are bits of debris pulled into the flame with the air feed: you'd be amazed how much muck there is floating around in the air. If this was a mixture problem, i.e. not enough air, as happens with unserviced boilers & fires etc, the yellow flame would be continuous, as you see with a choked bunsen. Further, there would be soot forming on the outsides of your saucepans.