James L Bowen on sat 16 dec 00
We fired our 45 ft kiln to cone 10 in 0 degree
Fahrenheit night time temperature last week. We
only have
four 100 LB bottles hooked together and four
large burners running at 6lb pressure at the
end. We keep
10lb pressure in the line. At 1 AM we started
losing pressure at cone 9.
We used a John Deere kerosene shop heater
pointed at the tanks to boost the pressure.
I was gonna say "Water baths don't work in the
cold" but then I read the post by "Mudlark" and
..I take
that as gospel, except he doesn't tell the
secret of keeping the water hose and hydrant
thawed.
Whattup Clyde? Our water supply is 100 ft. from
the kiln.
We have never had a gas line freeze. Just ice on
the tanks and loss of evaporation. I can't
imagine
freezing a 500 gallon tank, but will try as
soon as we can get one hooked up. We are tired
of wrestling
these bottles around.
Now if someone has an antifreeze for glazes
mudlark on sun 17 dec 00
It takes quite a bit to freeze running water throught the hose. In the house in
Nederland (-30 that winter) we left the water running in the sink to keep it from
freezing. You remember the tank in C. Springs was about 50-60 ft from the spigut.
I used this method for many years and NEVER can up short on pressure and the hose
NEVER froze. Anyway this "freezing is not totally temp related. You are drawing
gas faster than the tank can produce it. The outside temp effects how fast the
tank can produce gas. If a tank is very low aon a hot day the same thing happens
and the water also helps there. So its a demand -volume-temp- factor. I also
believe that how badly you need the pots that your firing is a factor but that
gets into another discusion about other worlds, kiln gods and stuff. Possibly
getting all your neihgbors and friends together around licking the tank during the
firing would help too.
The freezing in the gas line can happen at any temp. Like around a valve or a
regulator where the fuel goes from high to low pressure. This is VERY dangerous in
that it will give the kiln a life of its own. Turning of and on at will. Kind of
like my last girlfriend. You remember Jules. Anyway I digress.
Jim I have a beautiful shino bowl here that ended up in my stuff after UVAPAPA. I
think it's yours.
Clyde Tullis
Mudlark Pottery
320 G Street
Salida, Colorado 81201
719-539-1299
mudlark@chaffee.net
mudlarkpottery.com
James L Bowen wrote:
> We fired our 45 ft kiln to cone 10 in 0 degree
> Fahrenheit night time temperature last week. We
> only have
> four 100 LB bottles hooked together and four
> large burners running at 6lb pressure at the
> end. We keep
> 10lb pressure in the line. At 1 AM we started
> losing pressure at cone 9.
> We used a John Deere kerosene shop heater
> pointed at the tanks to boost the pressure.
> I was gonna say "Water baths don't work in the
> cold" but then I read the post by "Mudlark" and
> .I take
> that as gospel, except he doesn't tell the
> secret of keeping the water hose and hydrant
> thawed.
> Whattup Clyde? Our water supply is 100 ft. from
> the kiln.
> We have never had a gas line freeze. Just ice on
> the tanks and loss of evaporation. I can't
> imagine
> freezing a 500 gallon tank, but will try as
> soon as we can get one hooked up. We are tired
> of wrestling
> these bottles around.
> Now if someone has an antifreeze for glazes
>
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