Nice heats practical systems integration.
Anyone reading realize he is putting the heat generation down low and heat-to-be-used-centered to the heat uses.
This lets him maximize on easy heat RISES ALWAYS.
Maximize on thermal siphoning of waters; airs (primary, secondary and space heated) and combustion exhausts.
Note some where above that he says his combustion chimney is 8 meters tall, That is ~26 feet high. Mine is 23 feet combustion “fire” to weather keep-out-birds hood-cap. YES, you can down draft turbulent combustion with that kind of draw.
Vertical intergration is what makes solid wood heating efficient, practical and simple.
Go outside the habitual building with a horizontal lay out makes it complex with then needed pumps for the heats, airs and combustion. Adding in these extra need to be engineered, bought, maintained complexities those system can never be considered to be “efficient”.
Having to bundle up . . . to trundle out into the cold, wet, rain/snow will never be as “efficient” as walking over/down in indoor slipper-socks to restoke, poke down and maybe grate-shake.
Real secret to making a good effient solid wood burning heating system?
Get a SWMBO who will let you put it into the house!!
Steve Unruh now out cutting and dry storing 9 months worth of heating season wood.