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Message
Refilling 1 lb propane bottle from 20 lb tank
Posted on 12/14/22 at 8:30 pm
Posted on 12/14/22 at 8:30 pm
I read a tip about putting the 1 lb bottles in the freezer before filing (it enables more propane to enter the bottle - due to temp difference between the two). Be careful if you do this, I filled 5 1 lb bottles getting ready for this upcoming cold snap, 4 of them swelled up so much I had to discard them.
25
Posted on 12/14/22 at 8:31 pm to greenbean
You gotta heat the valve with a flame, dummy.
Posted on 12/14/22 at 8:31 pm to greenbean
Use a scale next time. Putting them in the freezer is just to make it go faster, while being careful not to overfill.
Posted on 12/14/22 at 8:34 pm to greenbean
That trick is dangerous for exactly the reason you discovered. It would work if you kept the bottles in cool storage.
Posted on 12/14/22 at 8:34 pm to greenbean
Use a lit match by the valve to see if the tank is full*.
*Do NOT do this.
*Do NOT do this.
Posted on 12/14/22 at 8:37 pm to soccerfüt
I laughed way too hard at this.
Also don’t freeze the bottles just get them colder than your twenty lb bottle. I’ve forgotten and left one hooked up all night before and once it equalizes it’s not going to fill up any more. Never had any fear of one exploding.
Also don’t freeze the bottles just get them colder than your twenty lb bottle. I’ve forgotten and left one hooked up all night before and once it equalizes it’s not going to fill up any more. Never had any fear of one exploding.
This post was edited on 12/14/22 at 8:42 pm
Posted on 12/14/22 at 8:39 pm to greenbean
quote:
Refilling 1 lb propane bottle from 20 lb tank
Posted on 12/14/22 at 8:39 pm to greenbean
Did you never PV=nRT
Posted on 12/14/22 at 8:48 pm to greenbean
As long as they are rated for same pressure you should be good.
Posted on 12/14/22 at 8:54 pm to Simplemaaan
quote:
As long as they are rated for same pressure you should be good.
I've done it before with no problem, but these swelled up. Didn't explode or anything (may be fine?), but to the point I'd rather discard them.
Posted on 12/14/22 at 10:21 pm to greenbean
Turkeys can be thawed quickly in hot oil too
Posted on 12/14/22 at 10:33 pm to greenbean
Ideal gas law baw
Posted on 12/14/22 at 10:43 pm to greenbean
I refill mine all the time, but never stick them in a freezer, fridge, etc
Get a digital scale.
Weigh one full, then weigh empty.
From my notes the typical one pound bottles full weighs
Flip the big propane tank upside down when filling.
Get a digital scale.
Weigh one full, then weigh empty.
From my notes the typical one pound bottles full weighs
quote:
Propane (camping) bottle full weighs 31.3 oz
Flip the big propane tank upside down when filling.
Posted on 12/14/22 at 10:45 pm to greenbean
Are you sure they actually swelled up? The plastic base is covering up the rounded bottom of the cylinder so it’s able to stand up, is that what you’re seeing? I’ve done this a lot, and never had an issue. Like somebody else said, the pressure is going to stabilize once it’s full.
Posted on 12/14/22 at 10:47 pm to greenbean
From what I recall when I looked into this, unless it is an approved refillable tank, it is illegal to transport those on the road.
Posted on 12/14/22 at 10:47 pm to greenbean
I’d worry less about maximum volume and more about not blowing your face off.
Posted on 12/14/22 at 10:49 pm to Ingeniero
quote:
Did you never PV=nRT
My high-school chemistry teacher called this perv-nert....
I'll never forget that formula,
Posted on 12/14/22 at 10:50 pm to deltaland
quote:
Turkeys can be thawed quickly in hot oil too
What a dick
Posted on 12/14/22 at 10:50 pm to zippyputt
quote:
From what I recall when I looked into this, unless it is an approved refillable tank, it is illegal to transport those on the road.
And how exactly would one figure out that you refilled it... unless it's busting at the seams like the OPs?
This post was edited on 12/14/22 at 10:51 pm
Posted on 12/15/22 at 7:28 am to NATidefan
I have no clue, that would be a DA’s job and Plaintiff lawyer’s job when you accidentally nuke someone in a car wreck. Just relaying the info when I thought paying $3 for a new bottle was too expensive. I decided against being cheap. DOTD and OSHA Regs apply if not others.
Info from a camping website below:
————————-
If you ever read the label on these bottles you will see that it says “Do not refill this bottle,” and “Do not transport refilled bottles.” Subject to $500,000 in fines and 5 years imprisonment.
I don’t believe the propane police are out hunting you down, but if an accident did happen and the tank was to blame, you could be in some serious trouble.
Info from a camping website below:
————————-
If you ever read the label on these bottles you will see that it says “Do not refill this bottle,” and “Do not transport refilled bottles.” Subject to $500,000 in fines and 5 years imprisonment.
I don’t believe the propane police are out hunting you down, but if an accident did happen and the tank was to blame, you could be in some serious trouble.
This post was edited on 12/15/22 at 7:30 am
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