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Safety -- Make sure you are safe! |
2012-06-25, 7:28pm
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@miniuniworld
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Join Date: Feb 11, 2012
Location: Bergen County, NJ
Posts: 176
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MAPP gas with HH
Are MAPP gas still available or are they gone forever due to the recall? Are they still safe?
Thanks!
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2012-06-25, 7:49pm
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grama punky - class junky
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Join Date: Aug 08, 2009
Location: Wisconsin
Posts: 1,034
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they are back, at least the fat boys are. I use them in classes all the time.
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Donna
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2012-06-25, 7:56pm
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@miniuniworld
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Join Date: Feb 11, 2012
Location: Bergen County, NJ
Posts: 176
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Would you mind sending me a link of which are the fat boys? And do they work well? How many hours does one can last? I have never used a hh before, but I am desperate to torch and I cannot find a plumber in the area to put in a gas line for me.
Thank you so much for you help!
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2012-06-25, 10:27pm
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Senior Member
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Join Date: Mar 07, 2011
Location: Northern California
Posts: 2,023
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You can always work with propane oxygen torches from a bbq tank.
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2012-06-26, 7:03am
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Gentleman of Leisure
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Join Date: Jun 10, 2005
Location: A Little Bit West of Yosemite Valley
Posts: 5,200
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MAPP gas (mixture of methylacetylene (propyne) and propadiene) is gone forever... The MAP-PRO (Propylene) canister recall is resolved with new valves in canisters.... IF tanks on shelf has a white or black diamond on top of tank near relief valve it is new approved canister....
http://www.mapcylinderrecall.com/#!faq
Fat Boy is short squat canister with 16.9 oz of fuel inside vs. tall skinny canister is 14 oz of fuel inside...
Standard Tank
Fat Boy
Dale
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San Francisco - A Few Toys Short of a Happy Meal
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2012-06-26, 6:40pm
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@miniuniworld
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Join Date: Feb 11, 2012
Location: Bergen County, NJ
Posts: 176
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got it! Thanks!
My studio is connected to the house, and I was told that it is not so safe to use propane when I am torching in the house. So I thought a HH with MAP-Pro would be safer.
Is the Fat boy any safer than the skinny cans?
How many hours does one can generally last?
Thank you so much!!
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2012-06-26, 6:59pm
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Gentleman of Leisure
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Join Date: Jun 10, 2005
Location: A Little Bit West of Yosemite Valley
Posts: 5,200
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Any fuel as MAPP or MAP-PRO (propylene) or propane has same dangers. There is no distinction between them as for flammability or explosive quality... They are equally dangerous, anyone that tells you other wise is wrong and the information you have been given about propane vs MAP=PRO is incorrect....
The only distinction about fat boy is it has 2.9 oz more fuel so it will give you the amount of time more at torch as it takes to burn the additional 2.9 oz... Or in event of a explosion its 2.9 oz or 20 % bigger than a 14 oz cylinder... In other words more "bang"...
As for safety... With knowledge of what your using and prudent precautions you are about as safe as one can be considering what you are working with....
Dale
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San Francisco - A Few Toys Short of a Happy Meal
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2012-06-27, 7:05pm
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@miniuniworld
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Join Date: Feb 11, 2012
Location: Bergen County, NJ
Posts: 176
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Thank you Dale! I really appreciate your knowledge. So is there some truth in Natural Gas being safer than Propane?
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2012-06-27, 8:08pm
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Gentleman of Leisure
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Join Date: Jun 10, 2005
Location: A Little Bit West of Yosemite Valley
Posts: 5,200
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Some but not a whole lot.... NG is also a fuel, it is explosive if concentrated... Main difference is it has specific gravity lighter then air, where it will float upwards and dissipate when leaking, where as propane and propylene has specific gravity of heavier than air and will float downward and pool in any low areas when leaking (this why basement studios need to be extra cautious with propane as a fuel) ....
Main difference is NG burns a little cooler than propane (mixed with oxygen) and its is sometimes easier to pipe into studio (does not require the "tank" or regulator)...
Any fuel is dangerous and not really "safer" than any other (for all practical purposes and applied to our type of work) ...
Dale
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San Francisco - A Few Toys Short of a Happy Meal
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2012-06-27, 8:16pm
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@miniuniworld
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Join Date: Feb 11, 2012
Location: Bergen County, NJ
Posts: 176
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Thank you very much =)
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