To stay warm you should use a very efficient heating system which transfers heat primarily to your bodies and secondarily to your habitat. The general concept for doing this is to have glowing coals inside of a sealed, highly insulated 'container'. For indoor implementation this is called a 'korsi' or 'kotatsu. For outdoor use this is called a 'fire bed'. Here's a description of the two:<br>
<br><u>For indoors use a Korsi:</u><br>1) Get a large metal (non-galvanized) container that has a tightly sealing top for it.<br>2) Get a lot of wood ash.<br>3) mix the ash with water to make a paste.<br>4) coat the inside walls of your container with a ~1 inch layer ash paste. Do not put paste on the containers lid. Let the paste dry. This ash border will act as a highly insulative wall, and the lack of paste on the lid will allow heat to escape upwards. (on a side note, this same concept is similar to ways in which one can make a forge capable of getting to 2,000 degrees: <a href="http://www.youtube.com/watch?v=KtQrE4PCT8k">http://www.youtube.com/watch?v=KtQrE4PCT8k</a>) <br>
5) Outside of your tent, light some coals inside of the container. When the fire has burned down and the coals are glowing without fire put a thin layer of ash over them and some dirt over (~1-2 inch layer) that. <br>6) Now you have a system that will slowly release a lot of heat for ~10 hours. <br>
7) Build a way to efficiently distribute this heat to you and others in the tent: Build a 'korsi' (<a href="http://en.wikipedia.org/wiki/Korsi">http://en.wikipedia.org/wiki/Korsi</a>) (in japan it's called a 'kotatsu': <a href="http://en.wikipedia.org/wiki/Kotatsu">http://en.wikipedia.org/wiki/Kotatsu</a>). This is basically a short table which is placed over the coal container. Over this short table you drape a big blanket which extends over the edges of the table to the floow around it. Now you and guests can lie under the blanket to sleep (or even just to hang out during cold days).<br>
NOTE: You have to make sure the coal container is <i><u><b>totally</b></u><u><b> sealed</b></u></i> so that carbon monoxide doesn't escape and kill you.<br><br><u>Without a tent a fire bed</u> will keep you warm while you sleep during the winter: <br>
<a href="http://www.youtube.com/watch?v=FDwTKAWhLfg">http://www.youtube.com/watch?v=FDwTKAWhLfg</a><br><a href="http://www.youtube.com/watch?v=2ch8Wek0d-Q">http://www.youtube.com/watch?v=2ch8Wek0d-Q</a><br>The nice thing is without a sealed tent you don't have to worry at all about carbon monoxide poisoning. The general rule is you dig the hole 8 inches deep. You let the fire burn in the hole for 2 hours. Then you cover the coals with 4 inches of dirt. See here for more info: <a href="http://www.survival.com/art1.htm">http://www.survival.com/art1.htm</a><br>
<br><br><div class="gmail_extra"><br><br><div class="gmail_quote">On Sun, Nov 18, 2012 at 10:49 AM, Frantisek Apfelbeck <span dir="ltr"><<a href="mailto:algoldor@yahoo.com" target="_blank">algoldor@yahoo.com</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:bookman old style,new york,times,serif"><div><span>Yes, that is the concept! I wonder if you know the name of the hacker who made the design? I have tried to do kind of quick search but I can not find his name, which kinds of annoys me because I remember to be in touch with him by email ...</span></div>
<div style="font-style:normal;font-size:16px;background-color:transparent;font-family:bookman old style,new york,times,serif"><br><span></span></div><div style="font-style:normal;font-size:16px;background-color:transparent;font-family:bookman old style,new york,times,serif">
<span>Anyway many thanks, it is good concept and we will see if we can imply it.</span></div><div style="font-style:normal;font-size:16px;background-color:transparent;font-family:bookman old style,new york,times,serif"><br>
<span></span></div><div style="font-style:normal;font-size:16px;background-color:transparent;font-family:bookman old style,new york,times,serif"><span>Sincerely,<br></span></div><div> </div><div>Frantisek Algoldor Apfelbeck<br>
<br></div><div class="im"><div>biotechnologist&kvasir and hacker</div><br><br><div><a href="http://www.frantisekapfelbeck.org" target="_blank">http://www.frantisekapfelbeck.org</a></div><div><br><br></div></div><div>
<div class="im">
"There is no way to peace, peace is the way." Mohandas Karamchand Gandhi<br><br> </div><div style="font-family:bookman old style,new york,times,serif;font-size:12pt"><div class="hm HOEnZb"> </div><div style="font-family:times new roman,new york,times,serif;font-size:12pt">
<div class="hm HOEnZb"> <div dir="ltr"> <font face="Arial"> <hr size="1"> <b><span style="font-weight:bold">From:</span></b> Mel Shamanka <<a href="mailto:mel.shamanka@gmail.com" target="_blank">mel.shamanka@gmail.com</a>><br>
<b><span style="font-weight:bold">To:</span></b> Frantisek Apfelbeck <<a href="mailto:algoldor@yahoo.com" target="_blank">algoldor@yahoo.com</a>>; Hackerspaces General Discussion
List <<a href="mailto:discuss@lists.hackerspaces.org" target="_blank">discuss@lists.hackerspaces.org</a>> <br> <b><span style="font-weight:bold">Sent:</span></b> Sunday, November 18, 2012 9:55 PM<br> <b><span style="font-weight:bold">Subject:</span></b> Re: [hackerspaces] hacker tent - easy construction, sturdy, name?<br>
</font> </div></div><div><div class="h5"> <br>
<div>Le dimanche 18 novembre 2012, Frantisek Apfelbeck a écrit :<br><blockquote style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-size:12pt;font-family:bookman old style,new york,times,serif">
<div style="font-size:12pt"><br></div><div style="font-style:normal;font-size:16px;background-color:transparent">
<span>So I wonder what was the name/type of the tent which was used on many types of hacker events, plus Burning man easy to erect and very sturdy, hexagonal particles. I think I talked to the guy who developed this but I can not remember his name I believe it was kind of hexagonal yurta used as I mentioned at Burning man and probably at Toorcamp.</span></div>
<div style="font-style:normal;font-size:16px;background-color:transparent"></div></div></div></blockquote><div><br></div><div>Hey Frantisek,</div><div>
<br></div><div dir="ltr">You might be thinking if the Hexayurt. See <a href="http://hexayurt.com/" target="_blank">http://hexayurt.com/</a> for more information, plans etc. Hope it helps !</div><div dir="ltr"><br></div>
<div dir="ltr">M.<span></span></div>
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