Why Is My Gas Fireplace Sooting up?

The most common causes of soot buildup in a gas fireplace are ceramic fire-logs that have been moved out of proper position and burner ports that are clogged. ... The other main cause of soot is clogged ports on the gas burner, which causes an incomplete or unbalanced burn and formation of soot on the logs and doors.

How do you stop soot in a gas fireplace?

A technician can often reduce soot levels simply by cleaning out the air intake shutters and restoring the air-fuel ratio. Gas fireplaces that contain ceramic logs used to mimic the look of a wood-burning fireplace often fall prey to another problem having to do with flame impingement.

Why is my gas fireplace vibrating?

Dust bunnies can accumulate on the blades of a fireplace fan and throw it out of balance. That causes vibration, noise and premature bearing wear. Cleaning a fireplace blower every few years keeps it running quieter and longer. Remove the blower and suck out as much dust as possible with a shop vacuum.