Heating two rooms with one RMH

sorry friends
wich is the safest way to get warm air from the livingroom with the RMH through the wall to the dormitory. i dont want exhaust gases running in the dorm while sleeping. just a way to warm and conduct into tnext room nice hot ambient air

what about living 1 inch separation and tunnel between bench and wall with 2 holes at the extremes? like the safety space between bench and wall for flamable walls. will flow enough warm air if I drill the wall that separates LvingRoom and SleepingRoom at the extreme closest to rise heater?

Hi Michael;
Even if you have your mass in the dormitory.
You have no need to be concerned about exhaust.
Remember with a rocket mass heater you will not have any fire all night!
By the time you go to bed there will be nothing but warm  mass.

Otherwise install heat registers at the ceiling and floor.
Then use  fans  to move your air.

thank you Tomas, very kind.
you must know,  i am just trying to read as much as possible. discovered RMH 2 weeks ago and never used wood to heat before.

you are right. about the fans... well no electricity out up there in my adobe cabin. therefor, either I do accept the good no-fire-while-sleeping point or pay attention to coming creative ideas, probably about problems solved already centuries ago in heating engineering and sleep very tranquilo

what about an independent container, a half barrel upside down or any air container like an adobe or cob bell (or like an oven?) opposite to bench!! beside and in contact to that primary bell where the riser. or even half squeezed between my adobe wall and the bell.

just to heat air und pump it by convection to next room

two openings like registers. one facing the room where to heater, low, lets say at about firewood feeder to suck air into this oven thing. the second high in my oven-like-device with a conduct through the wall to the dormitory. will just heat and transfer warm air (no potencial danger if leakeges, those are not the gases) from living room to dormy. could it work? wonder how big the oven (half a barrel?) and de ducts (4 to 6 inches?).

thank you all

sorry about poor English

* the room where the heater
* and the ducts

If you want to heat the bedroom as well as the main room with a bell RMH, just make the bell with a double wall - two layers of bricks or other masonry with a tiny gap between them (like a layer of cardboard) so that if one wall cracks, the other will still be gas-tight. This follows US building code for masonry heaters.

Take out part of the wall between the two rooms and have the bell exposed to both rooms, with surface area proportional to the sizes of the rooms. If one room is twice as large as the other, or needs more heat, put more of the bell exposed to that room.

This will give you the distributed heating with no moving parts or ducting required.

Will do!!
(sounds same effort and material as my idea but now framed in what people do and officers like . Thanks