View of kiln in winter from our house
Richard standing by partially opened hinged
lid which was cast in place in metal frame
This kiln is a modified version of the John Neely design which I fired in Logan, Utah. I wish to thank John for his long distance advice. It was built entirely with 70% alumina wedge firebricks from the local cement company. The thirteen pallets of bricks were in many cases cut on a diamond wet saw. The kiln has the possibility of water introduction for reduction cooling.
8 inch firebrick floor on top of 5 1/2
inch castable on top of 5 1/2 inch
concrete foundation. Note the weeping
tile and gravel around the foundation.
The floor is at ground level with the
first 2 feet of the kiln in the ground
Start of checkered exit flue at the base of
the new chimney, which serves both kilns
Note the exit flue from the old gas and
woodfired two chamber kiln.
Cast throat arch and step grate in
firebox. Note width of kiln increases
to 31 1/2 inches after 27 inch firebox
and first throat arch tumblestack
View from firebox through the throat
arch and main chamber and chimney.
Checkered exit flue with "damper" plugs
for firing old kiln. Note step up of floor
and narrowing of the tail to 27 inches.
Also note backstoking hole on left.
Checkered exit flue with plugs removed
Note 28 inch silicon carbide kiln shelf
that acts as top for tail section.
Carol putting finishing touches on sand mould for inside contour of castable
firebrick lid. Note firebox height and the underside of the castable arch
which tops the firebox.
Lid cast in place in metal frame, but
not yet hinged to the support structure.
Cast top of firebox
Shelf top and insulator bricks with
castable over tumble stack area
All potter lid casting crew (L to R), Horst Doll, Chris Barr, Enzien Kufeld, Carol
and Richard Selfridge. Chris did the majority of the welding on the kiln with
Richard and Horst (fitters in another life) doing the cutting and holding.
Kiln before metal roof, lid lifting mechanism, the
last foot of the firebox and chinney bracing. Note
spruce wood edgings cut to firebox length in
Kiln with lid up and safety bars in place after first
test firing, before addition of insulating castable
on wire mesh on exterior. Note kiln shelf top of
tumble stack area behind firebox with castable
insulation over silicon carbide shelf
Gas after-burner in chimney above damper. This
may require a small blower to provide more
oxygen. Pipe union allows for removal of burner.
Detail of hinge mechanism welded to lid and frame.
Hansel and Gretel firebox stoking door before the addition of
block insulation . Note barn door hardware for sliding door.
Block insulation on metal pins with open door.
View into lighted firebox with hobs and center rod fire bar.
Roof in place for winter snowfall.
View of 2-part counter weight and lid in up position.
Snowy roof over kiln with our house in distance.
Insulated firebox with chimney in background.
Elevated firebox with intake air holes plugged.
Cart half-way out on old gas and woodfired two-chambered kiln. Note damper for coffin kiln on left.
There is a sliding damper that separates the old kiln from the base of the new shared chimney.
Richard lifting lid of empty kiln.
Richard thinks about filling the new kiln.
"Unloading of the Latest Woodfiring"
This firing went a lot longer then expected because the castable throat arch failed and melted , blocking the front of the kiln. Only when that blockage was melted down did the kiln temperature resume climbing and reach cone 11 to 12. We have now rebuilt the throat arch using bricks and anticipate good results from the next firing.
"Stoaking the 27 hour Firing"
The following works were in the first firing and range to 30" in height.
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