<p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">Dear friends of Rocketworks,</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">
Herewith some details as requested</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)"><br></p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">
Rocketworks Stove</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">Latest stove, this stove evolved out of a classic rocket stove.</p>
<p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">High temperature resistant stainless steel.</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">
Long lasting due to precise, engineered airflow vortices.</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">100mm round tube. Height of stove 265mm, diameter of stove 245mm. Insulation air behind a sleeve.</p>
<p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">Primary air is from under the grate, secondary air from the entrance with the fuel wood.</p>
<p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">Tertiary air, pre-heated from vents in chimney</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">
Water boils in 15 minutes or better for 5 litres</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">Awesome power for a small tube and very clean no smoke hot enough to need little attention, even while adding new wood (damp ).</p>
<p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">Emissions are similar to the better fan powered gasifiers.</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">
After a few hours of use the stove can be picked up by the cage while stove is still burning.</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">
Turned upside down it makes a very comfortable stool and protects against rain.</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">
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.</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">
Also including insert, various fuels successfully tested, from jatropha cow dung chip, saw dust grass etc.</p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">
<br></p><p class="MsoNormal" style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:13.200000762939453px;background-color:rgb(255,255,255)">Have a great day Richard Pocock</p><br><div class="gmail_quote">On Wed, Feb 20, 2013 at 2:43 AM, <span dir="ltr"><<a href="mailto:rongretlarson@comcast.net" target="_blank">rongretlarson@comcast.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-size:12pt;font-family:Arial"><div style="font-size:12pt;font-family:Arial">Crispin and list (maybe) adding Richard Pocock)<br>
<br>A nice site for this stove is <a href="http://www.rocketworks.org/" target="_blank">www.rocketworks.org/</a> (same as Crispin gave last year and below)<br><br>Few questions below<br><hr><b>From: </b>"Crispin Pemberton-Pigott" <<a href="mailto:crispinpigott@gmail.com" target="_blank">crispinpigott@gmail.com</a>><br>
<b>To: </b>"Stoves" <<a href="mailto:stoves@lists.bioenergylists.org" target="_blank">stoves@lists.bioenergylists.org</a>><br><b>Sent: </b>Tuesday, February 19, 2013 3:47:12 PM<br><b>Subject: </b>Re: [Stoves] Three (?) Stoves from Rockworks<br>
<br>
<div><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Dear Friends</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">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.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <b>[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.]</b><br>
</span></p><div><div><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">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.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <b>[RWL: This is first time I have heard this about charcoal and Rockets. Can some users describe the maximum amount they have ever retrieved?]</b><br>
</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">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. </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <b>[RWL: How can I find the full set of data you are reporting here?</b></span></p><p class="MsoNormal">
<span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><b></b><br></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">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.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"><b> [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?</b><br>
</span></p></div><div><p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">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.</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> <b>[RWL: I also hope so.]</b><br></span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Regards</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d">Crispin</span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1f497d"> </span></p>
</div><div><p class="MsoNormal"> </p></div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Date: Tue, 11 Dec 2012 22:06:43 +0800<br>Subject: [Stoves] Three (?) Stoves from Rockworks</span></p>
<div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Dear Friends of Rocketry</span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">There are some all-metal <span style="background:#ffffcc">Rocket</span> stoves at <a href="http://www.rocketworks.org/" target="_blank">http://www.<span style="color:#222222;background:#ffffcc">rocketworks</span>.org/</a> 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.</span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> Performance of both not yet known.</span></p><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> Regards</span></p>
</div><div><p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Crispin</span></p></div><p class="MsoNormal"> </p></div></div></div><br>_______________________________________________<br>
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