Glen Peters Posted December 26, 2014 Report Share Posted December 26, 2014 Hello I have been making tiles and flat-ish items and will soon do a firing but I'm not sure when the day comes how to stack the electric kiln for bisque firing and later for raku fire in an old kiln using propane. I dont have a lot of shelves Can anyone advise me Thanks Glen Link to comment Share on other sites More sharing options...
Marcia Selsor Posted December 26, 2014 Report Share Posted December 26, 2014 you could fire the tiles on edge if they are not too thin. Link to comment Share on other sites More sharing options...
Glen Peters Posted December 27, 2014 Author Report Share Posted December 27, 2014 Hi Marcia Thanks for the reply I'll check out the links you sent but in the mean time I'm wondering if they need an air space between or can they be stacked on top of each other or leaning on each other (if on edge) Link to comment Share on other sites More sharing options...
Mark C. Posted December 27, 2014 Report Share Posted December 27, 2014 For bisquing no air space is needed. Mark Link to comment Share on other sites More sharing options...
Marcia Selsor Posted December 27, 2014 Report Share Posted December 27, 2014 For glaze firing,I set raku slabs on edge so I can grab them.That requires leaving space around them. Mark is right about the bisque and no space between is necessary. Just make sure they are really dry. Marcia Link to comment Share on other sites More sharing options...
High Bridge Pottery Posted December 28, 2014 Report Share Posted December 28, 2014 I found stacking things too tight together in my bisque ended up with parts being overfired. Mainly if it was one thick bottomed piece touching another thick bottom. Link to comment Share on other sites More sharing options...
Glen Peters Posted January 4, 2015 Author Report Share Posted January 4, 2015 Thanks for your helpI think what I'll do, for the bisque (based on your advice) is stack my tiles on edge but in a zig-zag or fan-fold pattern so that each tile only touches the edge of its neighbour? like this, looking from above WWWW with more stable objects as bookends? That should allow for better/even heating...I might do this also for the raku fire depending on the finish. Does that sound doable? Link to comment Share on other sites More sharing options...
oldlady Posted January 5, 2015 Report Share Posted January 5, 2015 yes, the row of Ws is very accurate in describing what would be a house of cards stacking. just let them stand somehow. and hope the thickness is even over all of them. Link to comment Share on other sites More sharing options...
Glen Peters Posted January 6, 2015 Author Report Share Posted January 6, 2015 yes, the row of Ws is very accurate in describing what would be a house of cards stacking. just let them stand somehow. and hope the thickness is even over all of them. "putting you down does not raise me up." Thanks "Old Lady" and you all! And I have another question; seeing as I'm low on shelving I'm wondering if ceramic floor tiles would work (as shelves) instead... for bisque and raku temperatures? Link to comment Share on other sites More sharing options...
oldlady Posted January 7, 2015 Report Share Posted January 7, 2015 NO NO NO NO! those tiles were fired at a temperature you would exceed in a firing. tiles and shelves are made of different materials. tiles need strength to support weight and are installed on a level surface to help with that. they do not also have to withstand extreme heat. look at a broken tile floor and you will see where some of the tiles were not supported correctly, causing the breakage. Link to comment Share on other sites More sharing options...
Glen Peters Posted January 18, 2015 Author Report Share Posted January 18, 2015 NO NO NO NO! those tiles were fired at a temperature you would exceed in a firing. tiles and shelves are made of different materials. tiles need strength to support weight and are installed on a level surface to help with that. they do not also have to withstand extreme heat. look at a broken tile floor and you will see where some of the tiles were not supported correctly, causing the breakage. Ok ok ok ok thanks for the advice and the enthusiasm For some reason I figured floor tiles to be high fire? Link to comment Share on other sites More sharing options...
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