Robert on fri 14 dec 07
Heidi,
A #17 would give you 209k btu/hr per burner @ 11" w.c. A #42 (.0935"
dia) would give you 61,600 btu/hr for 246,400 btu/hr total. (LP)
Take care,
Robert
heidi haugen wrote:
> hello all. i'm so happy to be back on clayart after a year
> hiatus...for some reason my server would not let the messages through
> but alas...for some reason this week it worked.
>
> after 8 years of being a part of this list, it was rough to not get
> my daily fix.
>
> i've been building an ifb sprung arch car kiln and am down to the
> very end and
> am having some issues getting the proper orifices for my burners. i
> can get the right fitting but not the right capacity (hole size)
>
> i thought that i was to order #17 but when they arrived, the openings
> are waaay huge. i must be confused about something and a looking
> for some advice.
>
> what i have is a 70 cu ft kiln
> 4 venturi burners
> lp propane(500 gallon tank)
> i live at approx 3600 ft above sea level
> i should need about 225,000-250,000
> btus per burner to fire the kiln
> i've got 11wci max pressure
>
> can someone tell me the proper language to use....i believe that i
> ordered a #17 drill size orifice...it's bigger than the current
> natural gas orifice that is on the burners and i believe
> that it is supposed to be much smaller.
>
> building this kiln has been quite an adventure and i'm soo thrilled
> to be nearly finished. kurt wild has been an exceptional mentor
> along with mel and others. i'm alone out here in the sticks
> and not too many folks around here to call on for help. once i'm up
> and running i'd be happy to field any questions from people
> considering building a kiln and the process i went through
> to get it done.
>
> thanks in advance.
> heidi haugen
>
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