well I got them this is the standard wood gasifier with no fan and this is
the forced air would yes fire the only difference between this one and that one
well there's two differences one is the outside container does not have any
holes drilled around it and two it's got a fan on it right here and I got some
12-volt leads coming off of this I was looking for a solar panel or a 12-volt
battery and all I could come up with was to six little batteries so this is
something I'm not sure people are aware of maybe some are but there's a lot that
don't know this you can make 12 volts out of two six volt batteries and here's
how you do it and it doesn't matter it could be to 6 mph
all that Reaser so what you do is connect the negative from one to the
positive to the other and you now have 12 volts you could leave this at 6 volts
and double the amperage of these batteries if you were to put them in
parallel so let me just touch this while we're here to make sure that I do that
power we have power
I feel pretty good good at Eric coming out of there too so I think that I think
that might work
let me explain just a little bit about wood gas there's a lot of videos out
there that call themselves wood gas stoves and they may be that nobody seems
to completely understand including myself the process that makes the wood
gas it's not very complicated but there's a whole lot to it and I've been
reading us for a while you see I got something done here okay
burning wood consumes oxygen and produces heat which releases a number of
gases several gases the two that we're concerned about are methane and hydrogen
those are the two gases that ignite these are downdraft gasifiers and what
that means is the fire burns from the top of the ignition source which would
be or the combustible source which would be wood in our case in some cases it
might be cow dung or some other biomass but we're just going to use wood what
that means the downdraft gas fires it burns from the top down and there's
actually three areas of a burning taking place or three areas of chemical
reaction at endothermic reaction endothermic is a reaction that requires
a continuous input of heat in order for it to occur so you have three layers
here the upper layer is the actual burning of the wood the second layer is
something taking place in the wood called pyrolysis and that is where the
gases are released and these gases flow downward because the gases are cooler
than the flame that's called convection the gas is called
the inner holes on the inner chamber here they flow up when they get mixed
with the cooler air coming in through these holes in the bottom they get mixed
with the gas and it rises up naturally and comes into the holes that are around
the top edge of this and they really ignite by the flames that are blowing
it's not complicated and it's been used for years and years and years this is a
really old technology and it's sort of recently in the last 20 years become
important again and what was the guy's name would er ski Wayne - Larry what dr.
Winnie our ski there's a guy that sort of brought this gasification technology
to third world countries where they would consume less wood or you know
Apple dumplin so that's my basic understanding of Wood gasification the
next video I'm going to take both these stoves out I'm gonna get them cranked up
stoked and burning I'm gonna plug this in and see if I can get that wood gas to
ignite and show you that and then we'll do a boil test on each stove see then
I'm just going to give you one more quick shot of these stoves because it's
the last time you'll see them clean and Purdy