Gas burners with yellow blue and yellow flame

[ianevans]

I have noticed that both gas hobs seem to be burning with slight yellow flecks in the normally blue flame. I have changed the regulator and hose and ensured there are no leaks. The burners seem to work fine and the flames are as strong as they always have been.

Maybe the next stage is to try and prick the burner outlets. Any suggestions or ideas? Is there a special tool needed?

Thanks, Ian

 

[Wesel]

Have you noticed this problem since you changed the regulator?

 

[ianevans]

Good question! I am pretty sure it was there before. Are you thinking the regulator could be faulty?

 

[Herman]

Cold weather, cold gas bottle, lower pressure, smaller flame with yellow tip.
Two days ago it took forever to boil a kettle the flame was so small. It will get better when things warm up.

 

[Kev56]

Cold weather, cold gas bottle, lower pressure, smaller flame with yellow tip.
Two days ago it took forever to boil a kettle the flame was so small. It will get better when things warm up.

Theres another thread on here but the other way around, where the flames are too big.
But please do not resurrect it.

 

[lohr500]

I was going to suggest cold weather/cold Gaz cylinder but @Herman beat me to it!

Perhaps bring the bottle inside and leave it in your warmest room for 24 hours then go straight back to the Cali with it and see if it is any different?

 

[gatvol]

Buy a battery powered carbon monoxide detector, just to be safe

 

[Herman]

Buy a battery powered carbon monoxide detector, just to be safe

Sorry Gatvol, but how will this help? You need to have an open window to use the gas rings safely anyway.

 

[gatvol]

I just want to know if any gas/ oil/ coal burning device in a living area produces carbon monoxide so I can get them fixed

 

[Crasher]

My carbon monoxide detector reacts to gas hob on if I don't crack the windows.So answer is open windows.Also mine sometimes burn like that I just clean with a hard toothbrush. Hope this helps.

 

[Peewee]

I’m a gas engineer and the more yellow/wavy a flame, the less air is in the gas mix. Gas is mixed with air at or near the burner and insufficient air leads to carbon monoxide.
Always crack the window when using the hob and give the burners a good clean if you’re getting yellowing. Having said that, butane often has yellow at the flame tip and it wouldn’t worry me too much.

 

[Glen M]

I have noticed that both gas hobs seem to be burning with slight yellow flecks in the normally blue flame. I have changed the regulator and hose and ensured there are no leaks. The burners seem to work fine and the flames are as strong as they always have been.

Maybe the next stage is to try and prick the burner outlets. Any suggestions or ideas? Is there a special tool needed?

Thanks, Ian

I had the same with an old gas bottle I had laying around for a couple of years, when I changed it to a new bottle the problem disappeared. I can only assume it was dirty/contaminated gas.