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Genboomxer

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  1. Genboomxer

    Old Kiln/New Potter

    Hello Rex, Thanks for the pointers. The lid has a damper on top with what are apparently graduated marks scored into the brick (see image). These graduations are original to the kiln's design and how and when to use them are described in the manual that came with the kiln. I think I understand from what you're saying that I should build a chimney to extend the flue and damper so as to draw the heat higher inside the kiln. Of course I will test fire a few times before adding a chimney. It may not be necessary, but if so, is there a height I should start with and work up from there? Sounds like this calibration will be a real 'trial by fire' (ya, bad pun, sorry).
  2. Genboomxer

    Old Kiln/New Potter

    I do live where those type of wasps are. I will certainly keep an eye open for that. Thank you.
  3. Genboomxer

    Old Kiln/New Potter

    They're not kiln props. They are made of a ceramic material. The cross section of the cylinder is cone shaped at the bottom, and the top is straight. I think this is designed to create the venturi effect for the gas.
  4. Genboomxer

    Old Kiln/New Potter

    I have about 2 dozen boxes of various cones for firing. I'm not likely to touch the burners unless I absolutely have to. My side yard is 9 ft wide, concrete, and has no overhanging from the house. I will definitely be getting some backer board for shielding. Thanks for the tips!
  5. Genboomxer

    Old Kiln/New Potter

    Yep. 3/4" pipe. I will probably rebuild the gas train, but I worry a little about removing the burners from the pipe. Thanks for the valve recommendation. I didn't realize they were that expensive, but it's cheaper than a kiln explosion. I'm a pretty handy guy so the plumbing is in my wheel house. I assume a thermocouple for a water heater will do the job? I'm just happy that I didn't get a recommendation to scrap the kiln! Do you have any other recommendations for other safety or convenience features I can incorporate into this design? Would a kiln sitter be feasible, or worth the effort?
  6. Genboomxer

    Old Kiln/New Potter

    Thanks Neil. It is set up for natural gas. The pilot ring is 1/4" perforated copper. There are tiny holes all around it; not just at the burner. The previous owner says she never left it unattended while firing, but had someone install the pilot ring as a precaution anyway. Not exactly safe, but better than nothing? There is no safety valve or pilot valve w/thermocouple. I'm thinking of installing a new ring with thermocouple, and reducing the number of pilot holes to 2, each pair pointing at a burner. Theoretically that should mitigate clogging problems. The piping appears to be 3/4" galvanized. I've been doing some research to find out what model Baso safety valve, pilot valve and thermocouple (or combination thereof) would be appropriate for my application, but I have not found anything yet (kinda hoping to find answers here). Would you happen to know what clearance (roughly) I need to keep around the kiln while firing? It is on the side of my home near a stucco wall and there is no roof eve (20 ft above) to worry about. Here's a photo of the inlet valving. It is functional, but does not instill a warm fuzzy feeling.
  7. Genboomxer

    Old Kiln/New Potter

    Here's another interior look. Learning to resize...
  8. Genboomxer

    Old Kiln/New Potter

    Hi Mark, I will attach more photos to answer your questions. It is pivot-hinged at one side and swivels open. Not worried about the asbestos. I mentioned it because of its age, and in anticipation of remarks from others. I don't plan on disturbing the liner unless absolutely necessary, and I would take all needed precautions.
  9. Genboomxer

    Old Kiln/New Potter

    Hello All, I am very new to ceramics, but I am keen to learn as much as I can. I recently acquired a gas kiln in as-is condition, and I need to know what to do to make it safe to use. It is completely manual and has no modern safety or control features. It is a Cerami Craft kiln of late 60's to early 70's vintage. All I have been able to find online for this particular kiln are a couple of ads from old trade magazines from '72. It also came with a booklet that is more of a guide for use than actual instructions. 7 cu ft 5 burners underneath Natural gas 2 peep holes Manual damper on top 1 WC gauge Retrofitted "Pilot ring" which looks a bit sketchy to me Manual Orton Pyrometer It came with shelves, furniture, and several boxes of various pyrometric cones. I was told the last time it fired was spring of '17. It was a single owner kiln and used 3 -4 times / year since it was new, according to the previous owner. The burners are interesting, and very basic in design: essentially a split steel cup venturi that holds a ceramic cylinder. Before I fire this antique up, I want to make sure I have a functional and safe tool. (BTW - I am aware the liner between the sheet metal and bricks is asbestos). Total $ invested so far in this project has been the cost of moving it from its previous home of ~50 years to my backyard, so I have a bit in the budget to upgrade. I definitely would like to do some upgrades for convenience and safety, so all suggestions are welcome. I am also not sure whether I need a permit to run a kiln in my city. The codes on their website are not very specific. Please refer to attached photos for an idea of what it looks like. I could only attach 2 in this post. OK experts, fire away!
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