Take a clean white cloth and rub it on the ceramic gas logs in the fireplace and on fireplace doors if you have them.
Gas fireplace soot on siding.
The sooting on your vinyl siding is generally caused by an incorrect air shutter setting on the burner tube.
Also with a lot of cleaners and soaps bubble action is critical.
If you see thick black marks on the cloth you have a soot issue.
It is important to test the area with bleach to determine if the spots are in fact soot.
You are running rich.
I would take real soapy water from dish or laundry detergents and work the area making sure there are bubbles.
Your flames probably look a little orange have darker almost black tips on them.
Using incorrect propane gas components or orifices on your fireplace can cause propane gas to not burn properly resulting in black soot.
This soot not only mars the appearance of the fireplace but it also signals a potential health risk since soot almost always occurs in conjunction with carbon monoxide.
However generic foam cleaner will usually be enough to remove soot stains.
Yet from time to time a gas fireplace may produce excessive amounts of soot.
It acts similar to a carburetor in that it controls the air to fuel ratio.
Some black spots on the house siding could be mold or just plan dirt.
Customers who had to scrub the first time they used it wiped soot off easily on a subsequent cleaning.
Mold dissipates when you use bleach however soot remains.
Soot is a black film that develops from fireplaces wood stoves or barbecues.
Ventless on the other hand the flame must not touch the logs and exact placement of the logs is imperitive.
This issue usually occurs on natural gas to propane gas conversions.
It is ok for vented logs logs to touch the flame and cause soot as this allows the closest look to a natural wood fire.
Wait roughly 7 minutes then use your brush to spread it and scrub lightly.
Black soot can also result from a malfunctioning propane gas regulator.
If possible buy one specifically designed for your home s particular type of siding whether it is wood vinyl aluminum or something else.
Almost sounds like it got heated into the pores or grain of the surface.
It s not just a matter of dissolving the stain.
It s a top choice for wood fireplaces wood stoves and pellet stoves but it s not for gas stoves.
Homeowners should always contact a professional when their gas fireplace begins to produce soot.
Gas fireplace makes soot streak on siding.