[Stoves] Accidental TLUD technique discovery

Sun Nov 13 21:54:42 CST 2016

Paul:

Correct, the double walled Chinese water boiler kettles and Kelly Kettles
actually show an increase in performance on the small trekking TLUDs than
on their own heating merit alone.  The smallest Kelly Kettle is
significantly more efficient on the small gasifiers than by itself.

We prefer a skirted pot or a sunken pot on an institutional stove design
though, if flame is already established.  Due to the greater surface area
on skirted or sunken pots (exterior bottom & exterior walls)  The cone
shaped water boiler kettle by comparison, has less surface area in the
internal cone surface and is only being heating from the inside out.

We found skirted pots could heat larger volumes of water faster, than cone
shaped water boilers, since the surface area on cone shaped water boiling
kettles is not as large as the skirted or sunken pot.

Regards,

Todd

On Sun, Nov 13, 2016 at 6:46 PM, Paul Anderson <psanders at ilstu.edu> wrote:

> Neil, Todd, Crispin and all,
>
> 1.  The cone to aid ignition gives increased draft and keeps the heat
> together.  A Kelly kettle (mentioned) could be used for its cone shape AND
> it can be for heating water.   Great double duty.
>
> 2.  Fire ignition material in TLUD includes some pieces of charcoal that
> has had some appropriate liquid such as lamp oil or kerosene (or melted
> candle???) on it.  The igh poreosity of the charcoal lets the starter
> liquid get further inside than with wood, (and pellets are so dense the
> starter fluid mainly coats the smooth outer surface.
>
> Paul
>
> Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
> Email:  psanders at ilstu.edu
> Skype:   paultlud    Phone: +1-309-452-7072
> Website:  www.drtlud.com
>
> On 11/13/2016 6:35 PM, neiltm at uwclub.net wrote:
>
>> Thanks Todd.
>>
>> I agree with everything you say, but I omitted to explain that my goal
>> has not been to obtain the best home set up I can, so much as refine my
>> abilities with the small trekking stoves, so that I can enjoy their
>> successful use all the more when camping.  But I love those little stoves
>> so much I'm quite happy experimenting with them for now at least, because
>> I'm learning so much from them.  I have perfect dry chip available from
>> the top of our gas boiler, but have chosen more recently to see what I
>> could achieve with uncovered wood alone or with artificilly dried as
>> starter since that is what will be available camping.  I always keep
>> enough dry wood to cook on or brew with to start a fire from mainly found
>> wood wherever possible.
>>
>> I have experimented with my own tincanium builds as well.  I have made
>> highly insulted TLUDs and a small rocket stove I hoped to take car
>> camping at least.  The elbow I made from two tin cans and then installed
>> them in a larger can, insulating with dry wood ash.  By the third firing
>> it had carbonised the thin steel to the point it disintegrated, so hot
>> did it get!  But it did work rather well while it lasted!  I enjoy using
>> Dean's stovetech rocket stove,  and a pot bellied cast iron BBQ that I
>> supercharge with a computer fan off an old car battery to assist air flow
>> through the very fine char the TLUDs produce, but these are far too big
>> to take camping, at least the minimalist way we do it usually.  The
>> Chinese stove and small Kelly kettle we can take in cabin luggage only,
>> on cheap flights in europe, and then car camp, sleeping in the reclined
>> seats of the smallest cheapest cars we can rent, which are in fact ideal
>> for the purpose.  But one day I might upgrade our home facilities, its
>> just that I really enjoy the simplicity and minimalism of it all.
>>
>> On 13 Nov 2016 at 10:21, Todd Albi wrote:
>>
>> Tony & Neil:
>>>
>>> Of course for all stoves, fuel species, moisture content, and type is
>>> going
>>> to have a significant impact on combustion outcomes.  You maybe missing
>>> the
>>> big picture though, and consider opting for a larger insulated TLUD or
>>> Rocket Stove with robust combustion chambers.  Choose a stove designed
>>> for
>>> home use cooking application.  The simple Chinese gasifier you mention,
>>> or
>>> our improved SilverFire Scout TLUD is an *uninsulated* trekking stove, it
>>> was not designed to be an everyday home use TLUD.  It is uninsulated
>>> intentionally, for quick cooling on the trail, for on the move cooking
>>> applications. * It was never intended for base camp or home cooking*.  We
>>> also tested the larger Prime unit last year and felt it had the
>>> combustion
>>> short comings that you discuss.
>>>
>>> Our larger home units (natural draft & fan units) incorporate more robust
>>> combustion chambers that are insulated.  They are more forgiving, with
>>> less
>>> than desirable fuel.  However, fuel is obviously the most important
>>> denominator for most efficient outcomes (crappy wet fuel makes for crappy
>>> outcomes).  One of our oldest customers and best intuitive cooks we have
>>> met (4 course meals on our stoves), simply plans ahead.  During the *dry
>>> season* she places garden clippings (grape vine clippings, garden
>>> debris, &
>>> twigs in a small bundles tied off with jute string) in a locking lid
>>> rubber
>>> trash can.  These prepared biomass fuel bundles are then inserted in
>>> stove
>>> at each meal time.  She has 2 large cans with a couple hundred bundles
>>> always on the ready.
>>>
>>> There are a lot of insulated stoves out there designed for home use that
>>> we
>>> would speculate would provide you with better outcomes, however
>>> attention,
>>> to fuel and preplanning may also improve your outcomes.  Good cooking!
>>>
>>> Regards,
>>>
>>> Todd Albi, SilverFire Stoves & Cookware
>>> www.silverfire.us
>>>
>>>
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