ducts around the fireboxes- the secondary air especially useful, coming into the kiln behind the bagwalls through rows of 1" holes, and good for cleaning up excessive smoke. When the fireboxes become clogged with embers after a few hours, it is an easy thing to switch to gas for a while to let embers burn out.
Of the two jugs I showed earlier, the brown one did not make it into the kiln through lack of space, so this one is similar but with a brush of titanium based slip - combed through to the brown slip.
The same jug viewed from both sides. - the turquoise colour is the "quiet" side, facing away from the direction of flame and soda vapours, the other side got more of the "action"! A lot more soda - quite a difference! but this is what soda-glazing is all about!
There were a few good pots but quite a lot of Duds! A lot of the slips went on too thickly for the soda vapours to break up into interesting textures. Quite a lot of brown fudge! So - much thinner next time....and I really must resist the temptation to use large pots for testing new slips - not a good idea! - wrecked a few decent jugs that way. The blue slip was poured over the "leather hard" jug and this results in the darker lines and streaks which are not always attractive - they would be much better dipped into a large bin of slip. I will mix up some large bins of slips for next firing.
Here are some of the better pots from this firing:
slip brushed on with a 5" emulsion brush.
brown slip combed through to paler body with temoku glaze over.
T http://web.me.com/johnnuttgensankard with bonfire-ash glaze. White slip trailed decs.