DIYbanter - View Single Post - Soot like build up on radient grills of a gas fire

Harry Bloomfield[_3_]

formulated the question :
I've been get these odd balls of what looks like soot appearing on my gas
fire grills. I've taken the grills out and hoovered it out, plus I got a
small hose attachment which I pushed out the small vent holes just above the
grills. But I didn't get a load of soot like I was expecting. I'm wondering
if it's something to do with the way the gas it's self is burning that is
creating this balls. They basically burn themselves out when you turn the
fire off but it's obviously still a problem.

Any help would be great!

That is a serious sign of incomplete combustion, so the appliance
should left off immediately and until it has been checked by someone
with the relevant qualifications.

Incomplete combustion is where it cannot get enough air to burn fully,
or the combustion air is not getting away. It therefore produces deadly
carbon monoxide = CO.