algebraist Posted July 10, 2019 Report Share Posted July 10, 2019 Hi All, I finished glazing yesterday, and have to fire tomorrow. Some of the pieces are definitely not dry; the glaze is pretty thick. I have a vented L&L (2-zone) electric kiln. I'm thinking of bringing it up to 200 F (at 60 degrees per hour) and holding it there for 4 hours before proceeding with my normal firing schedule. Sound reasonable? (In case it matters, it's mostly glaze tests, and the kiln will be very sparsely loaded.) Thanks. Link to comment Share on other sites More sharing options...
oldlady Posted July 10, 2019 Report Share Posted July 10, 2019 if you are testing glazes, be sure to put something under the tests to catch the runoff if you have applied it thickly. and have a good kiln wash on your shelves. Link to comment Share on other sites More sharing options...
Bill Kielb Posted July 10, 2019 Report Share Posted July 10, 2019 1 hour ago, algebraist said: Hi All, I finished glazing yesterday, and have to fire tomorrow. Some of the pieces are definitely not dry; the glaze is pretty thick. I have a vented L&L (2-zone) electric kiln. I'm thinking of bringing it up to 200 F (at 60 degrees per hour) and holding it there for 4 hours before proceeding with my normal firing schedule. Sound reasonable? (In case it matters, it's mostly glaze tests, and the kiln will be very sparsely loaded.) Thanks. At that speed it will take three hours to get to 200 degrees which for glazes only probably is plenty. An additional hold for four hours seems excessive especially glazes only. For sure ought to be dry Link to comment Share on other sites More sharing options...
liambesaw Posted July 10, 2019 Report Share Posted July 10, 2019 That's a lot of candling! I might preheat for an hour if I had just glazed, but usually I don't preheat at all for glaze firings! Link to comment Share on other sites More sharing options...
algebraist Posted July 10, 2019 Author Report Share Posted July 10, 2019 Thanks all! They start pretty close to 100 (it's summer, and the thermocouples are not perfectly accurate at low temperature), so it's more like an hour and a half to get to 200 F. But I hear you, maybe I'll hold it for an hour or two at 200 F just to be safe. Many thanks. Link to comment Share on other sites More sharing options...
neilestrick Posted July 10, 2019 Report Share Posted July 10, 2019 The slow ramp of 60/hr should dry them enough without a hold. Link to comment Share on other sites More sharing options...
algebraist Posted July 10, 2019 Author Report Share Posted July 10, 2019 Thank you Neil -- truly appreciated. (Bought the kiln from you some years back; love it, and your support on this forum counts as exceptional customer service.) Link to comment Share on other sites More sharing options...
Hulk Posted July 10, 2019 Report Share Posted July 10, 2019 Have been running full on the night before, just long enough to get over 180F, then off. Next morning, ready to go full on, first thing, then finish the glaze run earlier in the afternoon than otherwise, as no slow ramp to boiling point, and ahead on temperature as well. We have time of use rates, so another reason to get done earlier in the day... Link to comment Share on other sites More sharing options...
algebraist Posted July 11, 2019 Author Report Share Posted July 11, 2019 Hulk -- that's pretty clever (heat up to "warm" then shut off and fire the next day). Nice idea; thanks. Link to comment Share on other sites More sharing options...
Pres Posted July 12, 2019 Report Share Posted July 12, 2019 I often, especially as I have gotten older, will finish glazing in the afternoon, have the kiln loaded, and start the glaze at 11pm, candling til 12. then I set all of the switches (3) to 50%, go to bed, and the next morning turn up to high, and fire til ^6. I do not put my peeps closed until morning, as I have an unvented kiln, and do dip wax the bottoms of pots. Honey jars, teapots, casseroles, and other jars I hand clean. I like to pay special attention to the galleries and flanges to make certain things match without too much bare body showing. best, Pres Link to comment Share on other sites More sharing options...
neilestrick Posted July 12, 2019 Report Share Posted July 12, 2019 On 7/10/2019 at 1:32 PM, algebraist said: Thank you Neil -- truly appreciated. (Bought the kiln from you some years back; love it, and your support on this forum counts as exceptional customer service.) Thank you! Link to comment Share on other sites More sharing options...
Babs Posted July 12, 2019 Report Share Posted July 12, 2019 1 hour ago, Pres said: I often, especially as I have gotten older, will finish glazing in the afternoon, have the kiln loaded, and start the glaze at 11pm, candling til 12. then I set all of the switches (3) to 50%, go to bed, and the next morning turn up to high, and fire til ^6. I do not put my peeps closed until morning, as I have an unvented kiln, and do dip wax the bottoms of pots. Honey jars, teapots, casseroles, and other jars I hand clean. I like to pay special attention to the galleries and flanges to make certain things match without too much bare body showing. best, Pres As Pres, glaze pack then I start kiln late also but get up a few times to check. Natural insomniac . Then do as Pres does bungs i n except one and am there at "off"time to "supervise" the computer:-). My schedule negates need to candle for glaze firing . Link to comment Share on other sites More sharing options...
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