Thanks guys for the thumbs up.
JO, wuld you belive l thod about this? there is something deeply relaxing in that greenhouse. Expesialy now with the stove inside.
I managed to put the doors in today, almost ready for harsh winter conditions.
The burner was burning non stop the last few days, well allmost. The soil is still cold deep inside, l think l need at least a week to heat the ~16m3 of sandstone to warm temperature. But it shuld allso last a long long time once fully “charged” with heat.
Why l says “allmost” above? I have found out if l load the burner well, and burn full power for about a hour or two, then air tightly seal the bottom loading lid, the remaining wood will carbonise in a corse of a few hours, or better over night, wich produces some premium charcoal, while still heating the system. I make about 4kg at a time.
Since the charcoal cooks slowly, it is wery dense since the rapid pirolisis gas escapeing from the inside dont fluff the structure. It has a nice hard texture with litle dust once shattered, a metalic ring and like l sayd, much denster thain any char l made so far.
Allso, l think l found a nother use for the exess heat. I put 3 of my free range pigs in the stable to feed them fat for winter slaughter, so this means l need to cook for them every day. Correct, l am makeing a pig pot in the greenhouse heater too, to cook some potatoes, rutabagas and squash.