[Stoves] Thanks for the info

[Francesco Tortorici]

Excuse the delay in responding.  For some reason my Energy list emails were
going to Spam.  See my responses below.

Francesco

We know more about the stars overhead than the soil underfoot.
Leonardo Da Vinci


On Wed, Oct 30, 2019 at 4:02 PM Kelpie Wilson <kelpiew at gmail.com> wrote:

> Hello all,
> Sorry for late response, I get the digest and could not figure out how to
> respond to individual messages.
>
> Anyway, thanks Crispin, for the suggestion of a rocket mass heater with
> down draft heat exchanger. That's a great idea. TLUDs tend to draft too
> fast and you lose a lot of heat up the stack. That's why I don't use a
> stack on my 55 gal TLUD. I just use another barrel on top to make a plenum
> burner - it has slots around the top for the flue gas to escape. Burns
> super clean. See one here, burning hemp stalks:
> https://photos.app.goo.gl/WR8PPCuztQ3w6JuZ6
>
> Andrew and Gordon - TLUDs are not desirable for this application because
> what we have is cord wood and we don't want to chip or pelletize it (even
> though your TLUD BBQ that I have is very nice, Gordon, it uses pellets).
> The cordwood is mostly being used for biochar production in flame cap
> kilns, but as long as we are doing all that feedstock prep, it makes sense
> to use some just for fuel. I don't really care about making biochar in this
> case.
>
> Francesco - yes I remember meeting Lowell at the Permaculture Convergence
> last month - very nice what he is doing and looks like he is using wood
> chunks in that TLUD? Or is it wood chips? Maybe a TLUD that used long 24"
> pieces of split cordwood (2-3" thick), arranged vertically, would work. Is
> anyone using this kind of small size cord wood in a TLUD? Seems better
> suited to a rocket stove.* Lowell is using wood chunks.  That is what he
> started with and is comfortable using and is a waste bi-product of his
> carpentry business.  He is able to add fuel during the burn while it is in
> fan assist mode.  He fills the combustion chamber and turns off the fan
> once the water has reached 190 F.  It then maintains temperature above 160
> F which is what he needs for one hour.*
>
> The dairy needs 30 gallons of 150 F hot water twice a day for cleanup
> after milking, plus more every few days for pasteurizing. I recommend they
> install a solar pre-heating system so a quick hot fire started at the
> beginning of milking and fed during the hour-long milking process would get
> that water up to temperature in a reasonable amount of time.  *Lowell
> starts with water at ~100 F from his hot water heater.  He heats the 44
> gallons in the 55 gallon drum to the required 190 F in approx 1 hour before
> adding the straw to the barrel which raises the water level to the top due
> to displacement.  The timing seems about the same for the dairy operation.*
>
> Francesco - did you meet a guy at Permies who does hydronic and solar
> heating systems? I had a long talk with him around the biochar bonfire
> Saturday night, but I don't remember his name. I'd like to contact him.  *I
> do not recall his name either.*
>
> Rolf, thank you for the link to your retorts - those look like
> high-quality units.
>
> --
>
> *Ms.Kelpie WilsonWilson Biochar Associates <http://www.wilsonbiochar.com>*
> Email: kelpiew at gmail.com
> Oregon home office: 541-592-3083
> Mobile: 541-218-9890
> Skype: kelpie.wilson
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