claclana Posted December 24, 2011 Report Share Posted December 24, 2011 Hello! when in high my medium small used kiln lid gets open about 1/4-1/2 inch and I don't know if I should be placing something heavy on top (before) or check the hinge, is this opening very abnormal? so far, with about 10 firings didn't broke any piece...but may be the cost in electricity is higher...!? some advice? THANKS!! Link to comment Share on other sites More sharing options...
lynny Posted December 24, 2011 Report Share Posted December 24, 2011 Hi I am def not a tech expert, but my first, very old, second hand kiln was a small top loader and I was told it is the nature of that style of kiln. If my memory serves me right it was something to do with venting as there is no 'roof' port hole. I was told never to weight it down. I'm sure some of the tech experts here will have a better explanation cheers, Lyn Link to comment Share on other sites More sharing options...
Marcia Selsor Posted December 24, 2011 Report Share Posted December 24, 2011 My electric kilns do this too. I think it is caused by the expansion of the bricks and the stress from the hinge holding the back side down. It is pretty normal but I don't think it is a design asset. I think it otherwise. Marcia Link to comment Share on other sites More sharing options...
Pres Posted December 24, 2011 Report Share Posted December 24, 2011 Hello! when in high my medium small used kiln lid gets open about 1/4-1/2 inch and I don't know if I should be placing something heavy on top (before) or check the hinge, is this opening very abnormal? so far, with about 10 firings didn't broke any piece...but may be the cost in electricity is higher...!? some advice? THANKS!! I have in the past put an extra kiln lid on the top of the kiln lid, just as added insulation. However if you were to weight the lid down unevenly, or weight in the center etc. you could cause the roof to collapse. So I would be very careful with any "weighting". As others say here, it is the nature of the beast, so don't worry about it. Link to comment Share on other sites More sharing options...
Guest HerbNorriss Posted December 24, 2011 Report Share Posted December 24, 2011 From Arnold Howard, from another thread : "The lid is rising at the front because the firebricks in the walls are expanding as they get hot. That places pressure against the lid, causing it to rise. You can solve this problem by enlarging the holes in the hinge that hold the rod. Lift up the back of the lid. If it already has about 1/8" of play, then the hinge may be bent, causing the lid to bind instead of rise at the hinge rod. Sincerely, Arnold Howard Paragon Industries, L.P., Mesquite, Texas USA ahoward@paragonweb.com / www.paragonweb.com " I hope he won't mind my quoting him! Link to comment Share on other sites More sharing options...
Pres Posted December 24, 2011 Report Share Posted December 24, 2011 From Arnold Howard, from another thread : "The lid is rising at the front because the firebricks in the walls are expanding as they get hot. That places pressure against the lid, causing it to rise. You can solve this problem by enlarging the holes in the hinge that hold the rod. Lift up the back of the lid. If it already has about 1/8" of play, then the hinge may be bent, causing the lid to bind instead of rise at the hinge rod. Sincerely, Arnold Howard Paragon Industries, L.P., Mesquite, Texas USA ahoward@paragonweb.com / www.paragonweb.com " I hope he won't mind my quoting him! I solved that problem years ago as I like to fire my kiln with 2-4 sections. So my lid is with two handles, and no hinge-comes off completely and stands beside the kiln when not in use. The two handles make it easier for me to lift it on and off without dragging it. Link to comment Share on other sites More sharing options...
claclana Posted December 25, 2011 Author Report Share Posted December 25, 2011 yes, the hinge is bent! Thank you all of you!!, so fast reply in Christmas eve!! Happy holidays very helpful people!! Link to comment Share on other sites More sharing options...
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