The intense heat of the fire will normally cause
hairline cracks in the refractory. These cracks
can be minimized by proper curing as described
in “First Fires”. They will not normally dimin-
ish the effectiveness of the refractory. If large
cracks develop, then the refractory should be
replaced. To replace the refractory bricks, follow
these steps (see
Figure 10
):
1. Remove the bottom refractory
2. Remove the front refractories
3. Remove the left side refractory
4. Remove the right side refractory
5. Remove the back refractory
6. Remove the front ceramic baffle
7. Remove the rear ceramic baffle
To install the new refractories, follow the above
steps in reverse.
DISPOSING OF ASHES
Whenever ashes get 3 to 4 inches deep in your
firebox, and when the fire has burned down and
cooled, remove excess ashes. Leave an ash bed
approximately 1 inch deep on the firebox bottom
to help maintain a hot charcoal bed.
Remove ashes only when the fire is out and
the ashes are cold (24 to 48 hours after the
fire is out).
Do not leave the ashes in the house as they give
off carbon monoxide and other toxic gases.
Figure 10
WARNING
Disposal of Ashes: Ashes should
be placed in a steel container
with a tight fitting lid and moved
outdoors immediately. The
closed container of ashes should
be placed on a non-combustible
floor or on the ground well away
from all combustible materials,
pending final disposal. If the
ashes are disposed of by burial
in soil or otherwise locally dis-
persed, they should be retained
in the closed container until all
cinders have thoroughly cooled.
1. Bottom Refractory
2. Front Refractories
3. Left Side Refractory
4. Right Side Refractory
5. Back Refractory
6. Left Ceramic Baffle
7. Right Ceramic Baffle
REFRACTORY REPLACEMENT
2
1
3
5
7
4
6
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
11
Healthy Combustor - Unused
Combustor Problem - Ash, a fluffy light grey powder,
and soot, accumulate on the combustor surfaces in
normal use. In extreme situations combustor can
become clogged and should be cleaned.
Combustor Problem - Broken Combustor
Combustor Problem - Cracked Combustor
