[Stoves] Request for Two Open Source Paraffin Stove from New Dawn Engineering
Joel Ducasse
biorsa at yahoo.com
Thu May 25 01:22:32 CDT 2006
Dear Crispin,
I would like to buy two copies of your open source
paraffin stove (for me and another stover). Please
let me know how to send you my payment for hte items
and to pay also the transportation to Haïti.
Regards,
> Date: Wed, 24 May 2006 00:29:13 +0200
> From: "Crispin at newdawn.sz" <crispin at newdawn.sz>
> Subject: [Stoves] RE:New Dawn Engineering Open
> Source Paraffin Stove
> To: "Stoves" <stoves at listserv.repp.org>
>
> Dear AJ
>
> I am going to offer to those who hear about it now,
> a copy for $20 just to
> let the more serious stovers (like you lot) a chance
> to play with it.
> Heaven only knows what the 'real' price is. In
> large numbers I expect it to
> go for $16 so view this offer as wholesale between
> friends.
>
> I have to get 100 units to the Department of Science
> and Technology (RSA) as
> soon as I can and to do that I am training another
> producer who has
> expressed interested in making the future KD (knock
> down) kits which can be
> assembled from scratch without any electricity.
> That is more complicated so
> for the moment it is a welded frame that does not
> knock down. Most of the
> parts are completed for the first 140. After the
> next 800 we will change
> the valve and mounting to a lower cost one for which
> the tooling is not
> completed.
>
> It is surprisingly heavy (robust guess you could
> call it) because of the
> dangers associated with introducing a new stove that
> fails for ANY reason no
> matter how abused. For example the top is 1.2mm
> stainless though the first
> models were tested with a formed 0.5mm sheet. Later
> we can drop it to
> 1.0mm. I tend to favour overdesign! Only the
> heater pipe, the valve and
> the frame are not stainless steel. So far the
> heater pipe is hydraulic
> tubing and it is REALLY expensive because it is
> thick. For the moment it
> will do.
>
> The tank is obviously a problem in that the best
> answer does not exist. I
> liked a certain 2.5 liter rectangular PET bottle
> which I had the idea of
> making by inflating a 'pre-form' for a larget bottle
> inside the smaller
> blowmoulding form. The problem is that the preforms
> are made in Dubai (!)
> and I will have to get a tool made to plastic-inject
> the preform to produce
> a different thickness of wall. The preform is
> softened with heat and
> inflated inside a bottle shaped mould. Using the 5
> litre preform inside the
> 2.5 litre mould gives double the wall thickness. It
> is like a Coke bottle
> material.
>
> So I'm providing a 2 litre upright juice bottle with
> a brass fitting for the
> 6mm pipe. Anyone who wants to can provide their own
> elevated tank and hose.
> The valve accepts a 6mm hose quite tightly as it is
> 8mm in diameter. It
> will save shipping space. I like the idea of people
> using a permanent metal
> tank and using copper tubing to make it a permanent
> installation - more like
> an LPG stove in a modern house.
>
> Regards
> Crispin
Joel Ducasse
C/of El Rancho Hotel
Rue Panaméricaine - Impasse des Hôtels
P.O. BOX 16053, Petion Ville, Haïti
Phone: 509-257-0396
Cell: 509-404-2025
Vonage: 305-396-6093
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