Wil Morris on mon 21 jan 08
A few people have asked for pictures of the home-depot burner. Maggie
Jones was nice enough to give me links to her server so I can post some
images.
It's nothing fancy, but here you go.
http://maggiejones.20fr.com/WilMorrisburner1.jpg
http://maggiejones.20fr.com/WilMorrisburner2.jpg
http://maggiejones.20fr.com/WilMorrisburner3.jpg
It's just an old Duncan Kiln that one of the switches blew on. It cost way
too much to fix and replace the elements so I thought, 'Why not?'
I think I made the vent a little too big. I cut a hole in the center 4"
(~100mm) squared. So I just baffled it with kiln shelves till I saw no
smoke or flame. My little knowledge of gas assumes that this will be the
diffence between Ox and Reduction. A broken triangular shelf on top made
a nice adjustment piece.
I'm not sure if I liked the flame very much. The nossle has 6 holes
instead of one. Each hole is a little less than 1mm. This seems like an
overkill. Low flame is just a yellow fire. At high the flame almost
dissapears. The plus side (I think) is that the flame is dispersed in a
circular pattern on the bottom of the kiln. My bottom pieces overfired
(next time Ill put a cone down there too) Im gona get bricks instead of
using shelves to shield the flame. The nossle can come off with a wrench
so I was thinking about looking into changing it to smaller diameter.
As for Pyrometers... The main reason why I was considering one is so that
I dont ramp up or cool down too fast. Of course I would use cones to
determine finished climb. I guess I could use a lot of cones to watch
climb. I just hear all of this talk about soaking and holding and Im a
little unsure how to do this without a pyrometer.
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