Hmm. I was going to just PM you the info Tone to not distract from Kenneth’s information search. But now two others asking wanting to know now too.
My pictured-up Victory model hearth and hopper were the first of this series. An experimental model type Ben Peterson built up ~2010. Was much modified, changed, evolved over two years into the later production model units. It had been built of set aside scrapped out previous larger Offgrider and other early all-SS model units.
Mines five jets. Production were 20% enlarged with six jets. Mine has the hearth to hopper flange just above the jets line. Production this was moved up 100mm to not then need expensive die cut super heat resistant flange seals. Mine has multiple testing ports and input-output ports piercing through the double walled insulation jackets. Production units not having these heat loss energy bleeds; and potential temperature differential spanning, later welds cracking air leaks.
My on DOW picture are buried now back on previous pre-DruPal format topics. Or on my earlier Apple and Google/Chrome computers failed transferred to memory sticks.
For the actual dimensions and relative picture see on Dean Lasko’s topic:
Internally dimension out of BenP’s later evolved Woodgas Builders Bible book.
One hour searching back on the DOW topic for my old pre-2015 pictures I found these pictures;
A Hottwatt model ~1/3 the size and maximum callability of a standard sized Victory model hearth system. (Ha! Lots in this this picture. See the V-shaped swirl flare? My remote mounted mixer experiment? See its engine exhaust air preheating so the air temp matched the cooled woodgas Temp. And more. My own persoanla Shop-vac electrical generator system loaders. My own back-pac firing up quick NOW! torch set.)
Then the same mini-unit later sold and owned now by Paul O’Brien:
Ha! Ask him for internals pictures.
I am not “perrrr-fect” system chaser. Not in gasifiers, cars, chainsaws, or women. I am very much a can make work kinnda’ guy.
Now for bicycles, hand wood splitting mauls and wedges: I am very very picky. A Perfectionist chaser. Details there makes for significant performance changes.
Steve unruh