Andre v Schaijk

Ah now I'm getting the idea, the burn chamber is a lot larger then the air intake and port towards the riser, that way the burn material does not have to be tighly packed like a sawdust rocket.
Just stuff the burn chamber and the restrictions at both points keep the burn under controll while the door keeps everything in the burn chamber and still alowing the riser to complete the secondary burn unlike a system with flu pipe restriction.
It makes sence when you see it, almost makes you think "why did I not think of that"
I can see how you can burn any lose material in that: just let it dry, not even chopping up is needed.

To make sure I understand right, the advice is a burnchamber that I can put a can in with the burn matirial inside that and a airhole either in the side or botum of the can?
I'm guessing the best result would be with the burnchamber in front of the riser rather then directly under it to ensure the needed turbulance for the secondary burn in the riser.

Afraid not, my garden is hardly big enough to grow a few vegatables.
Before taking death wood from woods that are managed by nature organisations is no problem because it was not harvested but an ilness among Aesculus changed all that.
This rule is in effect in most parts of the Netherlands and only effects picking death wood.

I'm running into the problem that local laws nolonger allow picking wood out of the woods because of fear for tree infections spreading.
This means I'm looking for alternatives to wood, unfortunatly I don't have a lumber yard nearby for sawdust so all I can think off is weeds, meanly nettles, and paper.
Can these be dried and burn like sawdust rocket heaters in a canister or do they have to be processed into brickettes adding extra efford before use?
And how well will they burn in a rocket mass heater?

size would be usefull true, living room is roughly 55 sqm with another 30 sqm for the hallway and kitchen, the seccond floor has the bedrooms and bathroom, the attick is mostly unheated and unisolated.

I plan to only heat the living room with the RMH and keep the rest heated by the central heater, it would just be a matter of moving my thermostat to the master bedroom and closing the living room radiators.

so that would be no problem for a 6 inch system I guess.

thank you ernie,

the id of the feedpipe is 6 inch but inside the brick chimney itself there is no pipe at all, just bricks so there is a lot more cross section there.
offcourse with it being brick there is a higher risk of chimney fires.

Didn't think of the termal conduction to the next house trough the floor, just the wall.

still have some researching to do but with the huge amount of info on youtube and here I'm sure to figure things out.

greets André

First of sorry if it has been esked before, I'm new to the forum and jumping a bit in the deep end.

I have an excisting urban home in a row, the floor is a concreet foundation slab directly on suporting sand ground with no crawl space and the chimney is made for a gas heater, it has no internal pipes just a brick chimney with 2 open pipes at the roof and one pipe in the living room.

because the concrete slab is also supporting the walls between the houses and outside walls I'm fairly sure it can support a termal mass but what i am not sure about it if the chimney can be used without modification.

Greets Andre