"Harryk" wrote in message
m...
On 1/18/11 6:58 AM, Jack. wrote:
On Jan 17, 8:24 pm, wrote:
On 1/17/11 7:16 PM, Jack. wrote:





On Jan 17, 6:39 pm, wrote:
"I am Tosk" wrote in
l-september.org...

In articlecee50221-872b-450d-a446-9c59166b96d2@
29g2000yqq.googlegroups.com, says...

On Jan 16, 1:26 pm, wrote:
The manual is silent on how much you open the gas valve on the tank.
I
opened it all the way and then shut it off when the "test" was
finished.

You should always open the valve all the way on an LP tank. They are
designed with a "back-seat", which seals the valve stem when openend.
If you partially open it, gas can leak from the stem.

Wow, I did not know that.. I never seat anything unless I need to.

--
Rowdy Mouse Racing - Pain is temporary, Glory is forever!

Reply:
TOTALLY WRONG!!!! Crack the valve about 1/4 turn. Same with all
flammable
gas cylinders. O2, Argon etc. that are high pressure and inert have
back
seals. You want to be able to turn the tank off quickly if there is a
leak
or fire. Take any welding class and you will learn about gas safety.
Propane is a lot safer than a lot of the flammable gas as it is a
liquid
under pressure and therefore is at a lot lower pressure in the tank.
Acetylene is a higher pressure in the tank but is in solution in
acetone (I
think that is the liquid) as acetylene will self ignite explosively at
a
fairly low pressure.

From the Weber website:

Cart Based Models
* Close the LP tank valve
* Turn all burner control knobs to the OFF position
* Open the grill lid
* Turn the LP tank valve until it is completely open
* Wait several seconds
* Turn the front burner to the HI/Start position
* Press the igniter until the burner is lit.
* Turn remaining burners to High
* Close the lid.
* The grill should preheat to 500-550 degrees in 10-15 minutes

As you point out, LP is not the same as acetylene.

Those are the instructions on how to resolve a particular problem, not
the directions for S.O.P.

Do what you want.


I emailed Weber and will post its answer here. I assume Weber will not
offer up incorrect advice on something as critical as avoiding an
explosion or out of control fire.

What you posted, by the way, is what I did when I first fired up the
grill. I assumed one opened the tank valve all the way. It makes sense to
me, since the actual flow of gas to the grill is "regulated" by the burner
controls.

That's what I always do...open the tank valve all the way and close it
tightly after using and things have cooled down.