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<DIV><FONT size=4><SPAN lang=EN>
<P>Design challenges for biomass fired appliances.</P>
<P>Affordability, functionality, and durability are just a few challenges.</P>
<P>Another design challenge for stoves is the various openings and how to
close them.</P>
<P>Openings and closures are used for, combustion air controls, doors, fuel
hatches and ports, for ash removal, and for exhaust outlets. </P>
<P>Openings and closures that are affordable, practical, rugged, durable and
easy to use could be useful for many different stove designs.</P>
<P>The stove body is the easy part. It is the openings and closures that can be
a problem.</P>
<P>Lanny Henson</P></SPAN></FONT></DIV></BODY></HTML>