I purchased a Majestic gas fireplace in the late 1990s. Worked great for many years and have had someone clean it periodically. The flame still looks great but the exhaust vent creates heavy soot on my siding and sophet. Is it time for a new unit or can the flame be adjusted to burn cleaner?
It may be the unit needs cleaning and servicing, or it very well could be some parts are no longer working as they should. With a unit that old some may not be available any longer. So it might be time to replace the unit.