NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
9
Photo #1 Crumbling
Photo #2 Fly-Ash
Photo #3 Thermal Cracks
Photo #4 Mechanical Cracks
Photo #5 Fly-Ash Masking
Photo #6 Fly-Ash
Photo #7 Creosote Plugging
Photo #8 Soot Masking
These conditions are primarily related
to such factors as draft, aging or failure
of the appliance components, aging
or fatigue of the combustor, flue in-
stallation, using the wrong fuel or to
improper operation of the appliance.
Following the appliance's operating
manual will prevent these conditions.
Figure 9