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<DIV><FONT face=Arial>Dear David</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Good point!! To ensure that the tank is free of propane,
simply duct tape a piece of garden hose, or a pipe that will fit in the valve
opening, to a hair drier. Then turn on the fan for about an hour. No heat is
necessary.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>A secondary hazard may exist if there are hydrocarbon
liquids inside the tank. When the heat from a cutting torch or grinder contacts
them, they can also generate explosive gases. Heat the "area to be cut"
without making penetration, while leaving the fan running, and then complete the
cut. This should be safe.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Best wishes,</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Kevin</FONT></DIV>
<BLOCKQUOTE
style="BORDER-LEFT: #000000 2px solid; PADDING-LEFT: 5px; PADDING-RIGHT: 0px; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="FONT: 10pt arial; BACKGROUND: #e4e4e4; font-color: black"><B>From:</B>
<A title=dlevine@speakeasy.net href="mailto:dlevine@speakeasy.net">David G.
LeVine</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=stoves@lists.bioenergylists.org
href="mailto:stoves@lists.bioenergylists.org">Discussion of biomass cooking
stoves</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, October 24, 2012 7:10
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [Stoves] Extended use of
TLUDs Re: [biochar] Used Tractors ...biochar on homestead</DIV>
<DIV><BR></DIV>
<DIV class=moz-cite-prefix>On 10/23/2012 01:21 AM, Su Ba wrote:<BR></DIV>
<BLOCKQUOTE cite=mid:C2FDF585-D755-408F-9441-3075EDC38593@yahoo.com
type="cite">
<DIV>I was just given some discarded propane tanks of various sizes. I plan
to have a friend, who is welder, cut them up and see what we can come up
with for a stove. My requirements for a stove is that it has to be easy for
me to use, cost not too much, and last longer than they do now. </DIV>
<DIV><BR></DIV>
<DIV>...Su Ba</DIV></BLOCKQUOTE>Warning: Propane tanks can explode or
flare if cut without fully emptying them. It is wise to open the valve
for a week or two in hot, bright sunlight, or fill the tank with non-flammable
gasses (CO2, Argon, etc.) to prevent such problems for the first cut.
Remove the valves, if you can.<BR><BR>Dave 8{)<BR><BR>
<DIV class=moz-signature>-- <BR><BR><EM>"The first method for estimating the
intelligence of a ruler is to look at the men he has around him."</EM>
<BR>Niccolo Machiavelli<BR><BR><EM>
<CENTER>NOTE TO ALL:</CENTER><BR>When forwarding emails, please use only
"Blind Carbon Copy" or "Bcc" for all recipients. Please "delete" or "highlight
& cut" any forwarding history which includes my email address! It is a
courtesy to me and others who may not wish to have their email addresses sent
all over the world! Erasing the history helps prevent Spammers from mining
addresses and viruses from being propagated. </EM><BR><BR>THANK YOU! </DIV>
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