Why is glass on gas fire going black?

glass on gas fire is covered black also coals get
covered in like soot substance it’s an emberglowfire

EgyptianWonder
on February 8th, 2012

First you need to make sure the coals are placed as the manufactures instructions tell you, you cannot just chuck them in. They have to be placed correctly to make the fire burn correctly and cleanly.
If they are ok, then the next thing to do is get on the Corgi website and look for a registered engineer near you. It sounds like the fire is not burning correctly and will be giving off Carbon Monoxide gas.
Be safe, stop using it and get someone to check it out, there are far too many people killed each year because of gas fires
HighMaintenance
on February 8th, 2012

Is it the smoke stain?
MindsEye
on February 8th, 2012

Ok, and your point is?? You asked the question and answered it, so why ask it to begin with??
Fly
on February 8th, 2012

does the chimney need sweeping, there may be a blockage
FollowTheLeader
on February 8th, 2012

It sounds like its not venting properly. get a Co2 detector to place above it. Also chimney may be blocked. Soot like substance is exactly wot you said….SOOT
Bambi
on February 8th, 2012

coz of soot in the smoke i think
RollingSands
on February 8th, 2012

Carbon deposits . if you wish to remove go to your hardware shop they can sell you a product to remove it

Aleš Lombergar