[Stoves] Extended use of TLUDs Re: [biochar] Used Tractors ...biochar on homestead

[windrift at sympatico.ca]

A school boy in Canada was killed by an exploding hydrocarbon drum when 
he cut into it in a shop experiment..
Be careful in using appropriate venting procedures.

This is my first post after lurking for some time.

Alan in Kingston Ontario

On 10/24/2012 7:04 PM, Kevin wrote:
> Dear David
>
> 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.
>
> 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.
>
> Best wishes,
>
> Kevin
>    ----- Original Message -----
>    From: David G. LeVine
>    To: Discussion of biomass cooking stoves
>    Sent: Wednesday, October 24, 2012 7:10 PM
>    Subject: Re: [Stoves] Extended use of TLUDs Re: [biochar] Used Tractors ...biochar on homestead
>
>
>    On 10/23/2012 01:21 AM, Su Ba wrote:
>
>      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.
>
>
>      ...Su Ba
>    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.
>
>    Dave  8{)
>
>
>    --
>
>    "The first method for estimating the intelligence of a ruler is to look at the men he has around him."
>    Niccolo Machiavelli
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>    THANK YOU!
>
>
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