johnjohn

Note sure on the size but it was set up for natural gas. My guess is a #28. I replaced it with #38 orifices. I have 8 burners.

I changed the orifices for propane. I have an adjustable regulator by the tank and an adjustable regulator/meter to monitor the psi by the kiln. I have a feeling the regulator I am using isn't suitable for large tanks.

Yes i changed out the orifices. I"m using a separate regulator from the one that is used for the house. I'm thinking the regulator i tested is not suitable for large tanks. It keeps shutting down when i raise the PSI between 5-10. I think this regulator is for small bbq tanks. See image below.

Any recommendation on propane setup for an updraft kiln? I am trying to convert a 16 cu. ft gas kiln to propane using a 250 gallon tank. It uses 8 venturi burners. My first test using a 30 PSI adjustable regulator and 3/8 hose took me 8 hours to reach cone 06. The flame looked weak and yellowish. PSI was set around 8 and anything higher would shut the gas off. Is my regulator bad or not the correct for the BTU requirement? Any feedback would be greatly appreciated. Thanks in advance.