<div dir="ltr"><div>Hello Stoves;</div><div><br></div><div>Jeremy Warfluft was certainly doing some interesting research in 1984. One of the stoves mentioned in his document was the Z-stove, developed by the Hottenroths. They hold a number of very interesting patents:</div><div><br clear="all"></div><div>Hottenroth, FW Sr.; Jacoby, HD. 1966. Forced Draft Solid Carbon Fuel Burning Cooker US Patent 3,279,452<br>Hottenroth, FW Sr.; Hottenroth, FW Jr.. 1975. Portable forced draft solid fuel burning cooker. US Patent 3,868,943<br>Hottenroth, FW Sr.; Hottenroth, FW Jr.. 1976. Portable forced draft cooker. US Patent 3,982,522 A<br>Hottenroth, FW Sr.; Hottenroth, FW Jr.. 1984. Compact stove for emergency and other uses. US Patent 4,471,751<br>Hottenroth, FW Sr.; Hottenroth, FW Jr.. 1988. Biomass Stove. US Patent 4,730,597 <br>Hottenroth, FW Sr.; Hottenroth, FW Jr.. 1991. Portable Stove. US Patent 5,024,208</div><div><br></div><div>Some of their stoves look like modern TLUDs, although I suspect that they didn't have top-lit operation in mind, but where thinking of burning chunky fuel with large pore-spaces, which would produce a fire at many levels down to the grate.</div><div><br></div><div>The Z-stove in Warfluft's document was probably an earlier version of the Hottenroths'1988 patent, <a href="http://www.google.com/patents/US4730597">http://www.google.com/patents/US4730597</a></div><div><br></div><div>Their 1966 patent looks strikingly like a flattened version of a modern forced draft TLUD: <a href="http://www.google.com/patents/US3279452">http://www.google.com/patents/US3279452</a></div><div><br></div><div>Has anyone ever heard of, or see a "Z-stove"?</div><div><br></div><div>Cheers,</div><div>Julien.</div><div><br></div><div><br></div><div><br>-- <br></div><div class="gmail_signature"><div dir="ltr">Julien Winter<br>Cobourg, ON, CANADA<br></div></div>
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