Electric Brewing Supply 30A BCS Giveaway!


Home Brew Forums > Home Brewing Beer > DIY Projects > Brewpot from a propane cylinder?
Reply
 
LinkBack Thread Tools
Old 05-01-2007, 04:40 PM   #1
thebikingengineer
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2007
Location: Columbus, Ohio
Posts: 210
Liked 1 Times on 1 Posts

Default Brewpot from a propane cylinder?

So, here I am at work (a propane cylinder factory, I'm a metallurgy intern) and I'm taking some readings on a heat treat oven when an idea hits me... I thought, "You know, these 33.5# cylinders would make great brew pots / MLT's." I'm going to talk to some people here to see if I can't get one of our scrapped pieces to mess with, but I thought I'd bounce it off of you all.

What would the concerns be with doing this? I'd obviously clean out the interior very well, then just lop the top off (plasma torches FTW!), round the edges, and brew away. It's aluminum, it's pretty darn sturdy, and it should be a good fit for a false bottom kit.

To note, there is no propane inside, nor has there ever been. This would be a factory reject.

Thanks,

Mark

__________________
thebikingengineer is offline
 
Reply With Quote Quick reply to this message
Old 05-01-2007, 04:48 PM   #2
Yuri_Rage
Gritty.
HBT_MODERATOR.png
Feedback Score: 0 reviews
 
Yuri_Rage's Avatar
Recipes 
 
Join Date: Jul 2006
Location: Southwest
Posts: 13,938
Liked 621 Times on 387 Posts
Likes Given: 56

Default

According to this website, you'll have slightly less than 8 gallons capacity when you cut the top off of one of those. Sounds like a great place to start!

It's worth mentioning again:
DON'T EVER PUT A TORCH TO ANY TANK THAT ONCE HELD FLAMMABLE GAS!!!

The OP is using factory reject cylinders that have never been filled.

__________________
Homebrewed Blog..........YouTube Channel .......... Shirts, posters, etc
Yuri_Rage is offline
 
Reply With Quote Quick reply to this message
Old 05-01-2007, 06:31 PM   #3
chillHayze
Feedback Score: 0 reviews
 
chillHayze's Avatar
Recipes 
 
Join Date: Mar 2006
Location: Columbus OH
Posts: 1,589
Liked 6 Times on 6 Posts

Default

Quote:
Originally Posted by Yuri_Rage
According to this website, you'll have slightly less than 8 gallons capacity when you cut the top off of one of those. Sounds like a great place to start!

It's worth mentioning again:
DON'T EVER PUT A TORCH TO ANY TANK THAT ONCE HELD FLAMMABLE GAS!!!

The OP is using factory reject cylinders that have never been filled.
I understand the safety aspect here, but say a cylinder is retired from use for whatever reason. It is completley bled and purged with something inert like... compressed air or N2 maybe 5 or 6 times, then left with the valve open overnight or for a few days. Could that be considered safe? Safe Enough? Does the metal retain some liquid or vapors or something? I've no plans of doing this, just curious.
__________________
RDWHAHB
Every little thing is gonna be alright.

chillHayze is offline
 
Reply With Quote Quick reply to this message
Old 05-01-2007, 06:52 PM   #4
AGBrewer
Feedback Score: 0 reviews
 
AGBrewer's Avatar
Recipes 
 
Join Date: Feb 2007
Posts: 421
Liked 4 Times on 1 Posts

Default

I do some welding time to time at work and normally when we weld or cut a fuel tank or anything that has had flammables in it I will fill it as full as possible with water just under the cut or weld line, and drop in some dry ice to purge the rest of the space, But if you are the slightest bit unsure of the safety of doing so just don't do it.

__________________
AGBrewer is offline
 
Reply With Quote Quick reply to this message
Old 05-01-2007, 07:15 PM   #5
Yuri_Rage
Gritty.
HBT_MODERATOR.png
Feedback Score: 0 reviews
 
Yuri_Rage's Avatar
Recipes 
 
Join Date: Jul 2006
Location: Southwest
Posts: 13,938
Liked 621 Times on 387 Posts
Likes Given: 56

Default

Quote:
Originally Posted by chillHayze
It is completley bled and purged with something inert like... compressed air or N2 maybe 5 or 6 times, then left with the valve open overnight or for a few days. Could that be considered safe? Safe Enough?
In general, no. There are plenty of horror stories of DIY'ers out there trying to do repairs on tanks with tragic results, even when they "think" the tank has been inerted. As NewBrewer suggests, leave that sort of thing to the pros.
__________________
Homebrewed Blog..........YouTube Channel .......... Shirts, posters, etc
Yuri_Rage is offline
 
Reply With Quote Quick reply to this message
Old 05-02-2007, 02:45 AM   #6
thebikingengineer
Feedback Score: 0 reviews
Recipes 
 
Join Date: Apr 2007
Location: Columbus, Ohio
Posts: 210
Liked 1 Times on 1 Posts

Default

Hmm... Maybe I'll see if I can get a 40# tank, you know, just to make sure I've got the capacity. Seriously though, if there was ever anything in there, get a professional to cut it up, even sawing could cause you to have a bad day (I've seen them let go in testing, you will absolutely not be happy...cool to watch behind a screen though)

__________________
thebikingengineer is offline
 
Reply With Quote Quick reply to this message
Old 05-02-2007, 03:17 AM   #7
Dude
Will work for beer
HBT_LIFETIMESUPPORTER.png
Feedback Score: 0 reviews
 
Dude's Avatar
Recipes 
 
Join Date: Jan 2005
Location: Knob Noster, Missouri
Posts: 8,843
Liked 55 Times on 45 Posts
Likes Given: 6

Default

Haven't you ever smelled the valves on one of those tanks? You'll never get that LP sulphur smell outta that tank.

I'd go with plan B, honestly.

__________________
On Tap: Lake Walk Pale Ale -- Eternity (Raspberry Stout) -- Nutrocker -- Donnybrook Dark
Primary: Lake Walk Pale Ale
Secondary: Summit IPA
Up Next: Smoked Porter -- Pub Ale -- Watermelon Wheat
Planning:
Gone But Not Forgotten:

www.IronOrrBrewery.com
Dude is offline
 
Reply With Quote Quick reply to this message
Old 05-02-2007, 03:24 AM   #8
joshpooh
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2007
Posts: 330
Liked 1 Times on 1 Posts

Default

I don't think Hank Hill would approve of dessecrating a propane tank like that. Well I don't know he does like his beer too. I know nothing about propane, but if it ever had gas in it, it sounds like a bad idea to me. If the factory rejects never held gas and you're sure of that I would say go for it.

__________________
joshpooh is offline
 
Reply With Quote Quick reply to this message
Reply



Quick Reply
Message:
Options
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
The Shrink-Ray Hits The Propane Cylinder rico567 Equipment/Sanitation 10 07-21-2009 01:05 AM
Propane cylinder valve adapter Pabst Blue Robot Equipment/Sanitation 3 10-05-2007 02:24 PM
co2 cylinder z987k Equipment/Sanitation 4 05-29-2007 12:30 AM
CO2 Cylinder dougbo Bottling/Kegging 6 12-24-2006 02:23 AM
New 20# Cylinder & Reg EdWort Bottling/Kegging 2 10-18-2006 08:41 PM