mudlark on fri 15 dec 00
OK, I've fired propane for years and now I'm in a situation to where a tank is out
of the question . The Gas Co. has me approved for high pressure(10#) if i need it.
I have Eclipse TR 8 burners rated at 250,000 BTUs ea. at 10# propane. Has anyone
done this.
Thanks
CWilyums@AOL.COM on sat 16 dec 00
yes,
I currently fire my kiln with natural gas at 5# pressure. You will need to
change out the orifices as natural gas requires a larger opening. If you are
a real handy-person, you can bore the propane out yourself. If, you don't
have the proper equipment and expertise, use a pro and be safe!
C Williams
vince pitelka on sat 16 dec 00
> OK, I've fired propane for years and now I'm in a situation to where a
tank is out
> of the question . The Gas Co. has me approved for high pressure(10#) if i
need it.
> I have Eclipse TR 8 burners rated at 250,000 BTUs ea. at 10# propane. Has
> anyone done this.
This is a new one on me. In 30 years I have never heard of any gas company
anywhere willing to give a small private customer high-pressure natural gas.
It is primarily a liability issue. On propane, you only have the tankfull
if something goes wrong. With natural gas, if something goes wrong the high
pressure gas just keeps coming.
I have heard of gas companies delivering one or two pounds maximum, but
never ten. Are you sure you understood them correctly? And if so, are you
sure they know what the hell they are doing?
At any rate, it is a simple matter to enlarge the orfices on your Eclipse
burners to use lower pressure natural gas. It is a great way to fire.
Best wishes -
- Vince
Vince Pitelka
Home - vpitelka@dekalb.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
http://www.craftcenter.tntech.edu/
vince pitelka on sun 17 dec 00
> I currently fire my kiln with natural gas at 5# pressure. You will need
to
> change out the orifices as natural gas requires a larger opening. If you
are
> a real handy-person, you can bore the propane out yourself. If, you don't
> have the proper equipment and expertise, use a pro and be safe!
C. -
This is a little misleading. If you are really firing on 5 pounds natural
gas pressure, then you would use the same orifices as are used for
high-pressure propane. Normally natural gas does require a larger opening,
but that is because most people firing on natural gas are using only 5 to 10
WCI (water column inches) of pressure. Are you positive that you are firing
on 5 pounds, and not on 5 WCI? There is a huge difference. Please do not
take offense at my scepticism. It's just that I want to make sure people
understand this. Perhaps Marc Ward will weigh in on this, because he is our
resident expert.
Best wishes -
- Vince
Vince Pitelka
Home - vpitelka@dekalb.net
615/597-5376
Work - wpitelka@tntech.edu
615/597-6801 ext. 111, fax 615/597-6803
Appalachian Center for Crafts
Tennessee Technological University
1560 Craft Center Drive, Smithville TN 37166
http://www.craftcenter.tntech.edu/
mudlark on sun 17 dec 00
Yea, I expected there to be an oriface change, not like just switching gases.
Natural has 1/2 the btu's that propane and will therefore need less oxygen to burn
with the same flame. I'll get with the Eclipse dealer next week. Let you know.
Wanting to get back into high temp reduction
Clyde Tullis
Mudlark Pottery
320 G Street
Salida, Colorado 81201
719-539-1299
mudlark@chaffee.net
mudlarkpottery.com
vince pitelka wrote:
> > I currently fire my kiln with natural gas at 5# pressure. You will need
> to
> > change out the orifices as natural gas requires a larger opening. If you
> are
> > a real handy-person, you can bore the propane out yourself. If, you don't
> > have the proper equipment and expertise, use a pro and be safe!
>
> C. -
> This is a little misleading. If you are really firing on 5 pounds natural
> gas pressure, then you would use the same orifices as are used for
> high-pressure propane. Normally natural gas does require a larger opening,
> but that is because most people firing on natural gas are using only 5 to 10
> WCI (water column inches) of pressure. Are you positive that you are firing
> on 5 pounds, and not on 5 WCI? There is a huge difference. Please do not
> take offense at my scepticism. It's just that I want to make sure people
> understand this. Perhaps Marc Ward will weigh in on this, because he is our
> resident expert.
> Best wishes -
> - Vince
>
> Vince Pitelka
> Home - vpitelka@dekalb.net
> 615/597-5376
> Work - wpitelka@tntech.edu
> 615/597-6801 ext. 111, fax 615/597-6803
> Appalachian Center for Crafts
> Tennessee Technological University
> 1560 Craft Center Drive, Smithville TN 37166
> http://www.craftcenter.tntech.edu/
>
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WardBurner@AOL.COM on mon 18 dec 00
In a message dated 12/17/00 9:03:25 AM, vpitelka@DEKALB.NET writes:
<< If you are really firing on 5 pounds natural
gas pressure, then you would use the same orifices as are used for
high-pressure propane. >>
No, this isn't the case. True, you will use a smaller orifice than you would
for low pressure NG, but NOT the same orifice as the same pressure of LP. The
LP orifice would be even smaller. This is do to the amount of air needed for
proper combustion. The smaller the orifice the more "room" there is to mix in
air. NG needs 10 cubic feet of air for every 1 cubic foot of gas, while LP
needs 25 cubic feet of air for every 1 cubic foot of gas.
Marc Ward
Ward Burner Systems
PO Box 1086
Dandridge, TN 37725
865.397-2914 Voice
865.397-1253 Fax
wardburner@aol.com Email
wardburner.com Online Catalog
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