Please support me in the plan of the mass heater!

I really want a mass heater rocket stove....
The plan for the rocket stove kitchen is not a problem, well I think....

I have a good passive house that will not go under 60°F, but that still need to be heated sometimes! (if I get a 3weeks rain!)
I mean I need something small.
I separate it from the kitchen stove so that I can still cook when it is over 100°F outside...

And the plan for the mass heater is not clear... And I have a few simple questions:

1) How long can be the pipe between the combustion chamber and the "place for butts"?
I have always seen that it is side by side...
Can I cross a room (10')?
Will I have more smoke?
(the ground has not yet been made so I can dig...)

2) I have no clay...
Can it be all with natural hydrolic lime/stones/bricks?
(we renovate all with it, and stones. I also have a type of stone that can stand heat)

Thanks for help!

Xisca Nicolas wrote:1) How long can be the pipe between the combustion chamber and the "place for butts"?
I have always seen that it is side by side...
Can I cross a room (10')?
Will I have more smoke?
(the ground has not yet been made so I can dig...)

After some thinking...
Just tell me if there is a mistake!

I suppose I can also warm the floor and cross the room...

I suppose the pipe in the ground should not go down the fire level.
I suppose the smoke can go horizontal, but that going down is too much asking!

Xisca Nicolas wrote:
The plan for the rocket stove kitchen is not a problem, well I think....
I separate it from the kitchen stove so that I can still cook when it is over 100°F outside...

Doing 2 stoves is crazy in a little place with little cold and no frost!!!
(well, the plan was not mine, but I decided to search myself...)

Pics:
This is the main room, view from entry.
The kitchen will be on the right, on the other side of the wall.
The stove should have been where the black bucket is.
Now I want to brake the wall enough for the warming pipes that would come from the kitchen.


Same, but taken from the other side of the wall, from the kitchen.
You just see the part of the wall I want to brake for correcting the mistake.



As you see, the room is small, so it is not necessary to have the burning stove there.
I prefer to have more heat in the kitchen,
that will be half opened.

And I prefer to have only ONE stove to make, and later on to light!

Now there is a hole where this black bucket was!
We went under the wall.
So, the mass heater will be in the kitchen, that is separated from the living room.
The kitchen is opened to the outside.

The wall separating the 2 rooms will have a window, for choosing when to heat.

The smoke pipe will go under the wall to heat a sort of sofa.
But this part of the room is round, quite hard for pipes!
Can it be in aluminum?
(those soft pipes...)

If yes, what is the max heat, or the distance mini from the stove for aluminum?