Til, there is no cleaning port. No space. As with the Seat gasifier, its all serviceable from sbove.
I cant remember the interval, but it lasted some time. Allso, l didnt use egr in that gasifier, meaning most of ash melted on the nozzles. Allso, l will use Bruces “nozzle poking rod” idea, clean the holes from underneeth.
I think l might get by with monthly cleanups here. Thats ok.
I didnt test the soot reintake yet. But my guess is most will fly trugh the nozzles, the rest that setles down will burn in the nozzle pipe. There is allways a glowing pile of char under each nozzle anyway.
Ash is a good insulator yes, but its the walls that are problematic. Bottom remains cold.
Thanks Steve, l think l have a old oven in the old house, maybee luck is on my side. Those ovens, called pirolisis ovens have only became popular in recent years here.
Bruce, pellets are similar price here, a tad expensiver. But like you sayd, l feel better too if l heat the greenhouse with the heat. And man they make some of that!
Allso, a question to char guys. I never run a egr in any of my char gasifiers much, so l havent got much idea how it all acts inside. Particulary, does egr shrink the hot reaction zone or expand it?
Logic says it cools/shrinks/lowers the gliwing mass of char, but on the other hand, since the zone us cooler, gas needs a longer time to get reduced fully, meaning a larger, but lower temp reaction glibe? What do you think?