Dear friends of Rocketworks, Herewith some details as requested
Rocketworks Stove Latest stove, this stove evolved out of a classic rocket stove. High temperature resistant stainless steel. Long lasting due to precise, engineered airflow vortices. 100mm round tube. Height of stove 265mm, diameter of stove 245mm. Insulation air behind a sleeve. Primary air is from under the grate, secondary air from the entrance with the fuel wood. Tertiary air, pre-heated from vents in chimney Water boils in 15 minutes or better for 5 litres Awesome power for a small tube and very clean no smoke hot enough to need little attention, even while adding new wood (damp ). Emissions are similar to the better fan powered gasifiers. After a few hours of use the stove can be picked up by the cage while stove is still burning. Turned upside down it makes a very comfortable stool and protects against rain. In the pipeline a new stove top stainless with holes for no 2 & 3 cast iron pot legs. Depends on a large order so tooling costs can be absorbed. Also including insert, various fuels successfully tested, from jatropha cow dung chip, saw dust grass etc. Have a great day Richard Pocock On Wed, Feb 20, 2013 at 2:43 AM, <[email protected]> wrote: > Crispin and list (maybe) adding Richard Pocock) > > A nice site for this stove is www.rocketworks.org/ (same as Crispin > gave last year and below) > > Few questions below > ------------------------------ > *From: *"Crispin Pemberton-Pigott" <[email protected]> > *To: *"Stoves" <[email protected]> > *Sent: *Tuesday, February 19, 2013 3:47:12 PM > *Subject: *Re: [Stoves] Three (?) Stoves from Rockworks > > Dear Friends > > > > An update on at least one version of the stove referred to below. This > stove is from a company called Rocket Works though from a technical > perspective it is not a classic Rocket stove by several measures. You can > draw your own opinion of course. > > *[RWL: I'd like to hear your set of differences. I wonder where > this fits in the range described by Nordica at last ETHOS meeting in terms > of dimension ratios.]* > > > > The picture attached was passed around in the public domain so it is OK to > talk about it. It is interesting from a couple of perspectives. One is that > it produces very little charcoal, meaning it burns the whole fuel. This is > different from most Rocket stoves and in ones that have a similar layout > but have a grate. Rocket stoves tend to produce charcoal which sits on the > bottom of the stove under fuel. I would say this produces about ¼ as much > and maintains a high combustion efficiency. > > *[RWL: This is first time I have heard this about charcoal and > Rockets. Can some users describe the maximum amount they have ever > retrieved?]* > > > > The PM emitted on high power (using ≈12% moisture fuel) is similar to that > of high end fan stoves like the Oorja burning pellets and the Philip Stove > burning chopped wood, territory thought by some to be reserved for stoves > with blowers. I am not saying such performance from a side-feeder was > unexpected, but it is unexpected that it would be so soon. Clearly they > have been playing around with it a lot. The high power PM level would > place it at the upper end of Tier 3, right at the edge of Tier 4. > > *[RWL: How can I find the full set of data you are reporting here?* > > ** > > It has some measure of preheating of the primary air and definitely > preheated secondary air with a side-feed of stick fuel. From the look of > the structure it will not be hot to the touch (most of it) and the cost > (and mass) is obviously low. Two of its technical advances are evident in > the photos on their website. > > * [RWL: This is the first time I have heard of a rocket having > separate primary and secondary air supplies. Can you or Richard describe > these features some more. Agreed on the nice feature of the wire mesh. > Cost?* > > > > One of the principles is the South African Richard Pocock who we know from > solar cooker days. That name may ring a bell with a few of you. Perhaps he > will provide some technical and performance details. > > *[RWL: I also hope so.]* > > > > Regards > > Crispin > > > > > > > > Date: Tue, 11 Dec 2012 22:06:43 +0800 > Subject: [Stoves] Three (?) Stoves from Rockworks > > Dear Friends of Rocketry > > There are some all-metal Rocket stoves at http://www.rocketworks.org/ > featuring > a new wrinkle on the under-air pathway. They are made in South Africa. > They have a gel fuel insert that makes it a dual fuel stove. > > Performance of both not yet known. > > Regards > > Crispin > > > > _______________________________________________ > Stoves mailing list > > to Send a Message to the list, use the email address > [email protected] > > to UNSUBSCRIBE or Change your List Settings use the web page > > http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org > > for more Biomass Cooking Stoves, News and Information see our web site: > http://www.bioenergylists.org/ > >
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