[Gasification] Resistance wire ignition

[AJH]

On Mon, 18 Sep 2006 06:23:44 -0600, Thomas Reed wrote:

>The "downdraught" log gasifier sounds interesting.  Where can we learn 
>more details?  Winter is coming.

I've had basic instructions in servicing two different makes, Kob and
Kuenzel.

They're both downdraught devices and they gasify but I guess they're
more correctly termed close coupled combustors. Both have full
electric ignition, electronic control and closed loop operation.

A schematic is at:

<http://www.koeb-schaefer.com/kus_tree/powerslave,id,13,nodeid,13,lang,EN.html>

Lemmings with non compliant software c/o Mr. Gates will need to watch
any word wrap. I suspect a previous reference to this, on one of the
REPP lists, by me lead to their introduction to UK.

I know a bit more about the Kuenzel model but as none have broken down
yet I'm not really familiar with them. I have seen the Kuenzel burning
oak offcuts at >40% mc wwb visibly cleanly. The Kob uses an id fan but
the Kuenzel pressurises the hopper, which surprised me.

When I built one of the burners I found that the throat between the
two chambers quickly burned out, on these models this area is
effectively water cooled. My friend Danny has built me a device to my
own design that has the benefit of a depression in the hopper and no
id fan. Instead there is an entrainment device between the two parts,
a bit like the Dasifier, but we haven't had enough time to evaluate it
yet.

AJH