This page is about "whats up right now".
The newest will be on top, so if you read from buttom
up, you get a history like in a blog.
August 8. 2014
So how did it go with our condensate experiment ?
Well - its rather predicable, that not everything goes the way
you expect it in an experiment.
If it did there was reason to make it ;-)
Here you se the "set-up" in our lab.
The Gymse-stove was build at last years work-shop, but at the
other end of the room, so it could be connected to the chimney.
This year we toke it down, and rebuilded it here, since we didnīt
needed the chimney.
The "chimney" is now the blue bucket you se behind my good colleg
and friend Jens.
In between you se a steelpibe, where we hoped to release enough heat
to get to condensationtemperature.
That the first part of it is very dirty shows, that we didnīt quit
got to that, and therefor tried to cool with wet claymortar.
In the bucket we have water in the buttom, and burned claynuts
A little pump moves the water to the top and spray it over the
Lecanuts, so they are constantly wet.
The vertical tube is turning around when the pump is running
spraying the water all over.
(I had a litlle film showing this, but cannot make it work on this
The smoke is going in near the buttom, and have to go through this
wet environment with a very big surface.
It makes some resistance of course, but not much. Gymse could
allmost pressure the smoke through by itself, but only allmost.
So a lid and a little ventilator helped.
As you can se here, a little steam evaporated, so the condensation
was not complete, but since the stove was new and very wet, it might
increase by time.
When we started to fire the stove, you could smell something like a
mildly smoked sussage if you put your nose in the steam. Not
unpleasent at all :-)
Later, when the fire burned clean, we could smell allmost nothing.
(The door was open, because we wanted to cool down the pibe as much
as possibel, not because of the smell).
Messuring was a serius problem.
If it was Jensī equipment (same as my own, that just was in
Catalonia), or just too strange input for the equipment, is hard to
say, but the results was not reliable.
Temperature on the output we could trust, and that was going from 20
to 40 degrees Celcius during 2 hours of firing. Cooling the
recirculated water would surely help.
Co was extremely low (expected), but since the oxygencell seemes to
fail, we could not calculate the efficiency.
Particles we could not messure, but honestly - how much do you think
will pass through this very wet environment with water going
So i have to repeat the experiment, and only make the changes we
could se would be appropiate (better cooling).
Never the less -
We had fire in the stove for 2 evenings, just for the cosiness, and
we let out the "smoke" in the same room where we where. No problem
at all :-))
Of course this is not recomendable in a tight house, but this is not
the goal either. Only to reduce the pollutant of PAH and particles
as much as possibel, and that part of it im sure we got very close
We allso had a lot of fun.
Who can make the biggest arch in brickwork with claymortar only
with "living support" ;-)))
The participants + the kitchenstaff, was devided into 3 groups with
this challenge, and allmost no guidance.
This was the most ambisius team, but when they moved the knees, it
This did, even though it was so much out of shape it could be.
Remark, that Roberts head is still above the arch, so no helmet
3 happy teatchers. L->R Steen Moeller, Jens Andersen, Lars
Next work-shop might be in Catalonia (northeast Spain), but its
not scheduled yet.
Keep updated here, or send me an email on email@example.com
Of course we will have work-shop on Drejoe next year, and maybe in
Hope to see you.
International Work-Shop in Denmark 2014
21-28 of june at Nygaarden Drejoe as usual.
This year we begin with a party :-)
One of the participants bring his band, so be sure to arrive in good
Besides learning about - and building stoves, we will try out a new
tecnic, to make these stoves work without a chimney.
We will condensate the smoke, wash it, and only let out pure Co2.
At the same time this process will bring up the overall efficiency
to about 120%
To do so, we will need a little electricity, but we will let the
stove itself produce this by a thermogenerator.
Sten Moeller from Freeland will be the co-teatcher at this project.
A good friend and a colleg of mine, Jens Andersen, will bring a
stove of his own kind.
He build stoves very different from me, so this is a chance to se
how they look inside.
So we will have a lot of activities this year, and we still have
room for more participants.
Price: 1000euros all incl.
More info or sign up:
Send me an email: firstname.lastname@example.org
September 29. 2013
Winter is coming up in Denmark, but here in Catalonia its still
what i would call a really good summer.
I begin to miss a good fire though.
My girlfriend and i are moving from a flat in town to a big old
house in a village called Vilopriu.
For most locals here, its just an old house, but to me its amazing,
and for several reasons.
First of all, i look very much forward to build some stoves for
myself again, and i will have plenty of uppertunities in this house.
800m2 (8600sqft) in 3 floors. Separation between the floors, and all
staircases are made in catalan vaults, so its very strong, and i can
build my stoves whereever i want to.
Catalan vault, whats that ?
Take a look at this: