Thomas Tipton wrote:Looking at that floorplan. In theory, he could build a bench that wraps around using only one penetration in the wall between the studs. Unfortunately, the downside is there isn't likely to be any way to get enough heat to the other side of the house. I don't think a J-tube is going to produce enough hot water to be pumped to the other side of the house past the kitchen. Is there any existing ductwork in the house left over from a forced air system? If there is, or it could be added, as long as there is electricity available he could use forced air to move heat over to where it is needed.
Glenn Herbert wrote:To your question about a future second floor and being able to heat it, that depends largely on your climate. How cold do winters get? Do you have a lot of warm and cold days, or does it get cold and stay cold for days at a time? 100 m2 is around 1000 square feet, so easily heated by an 8" J-tube in a moderate climate. A second floor on top of that might be a stretch to heat. You say the walls are adobe, is there any insulation added? Adobe is great for hot days and cold nights, not so much for long cold spells. You might need a larger system, or an 8" batch box instead of J-tube. (A batch box puts out about twice as much heat as the same size J-tube.) Batch boxes are more complicated to build than J-tubes. You might start by building the J-tube, and see if it gives you enough heat without needing long burns. Make the layout so that you could change to a batch box later if you need to.
Glenn Herbert wrote:"Set in stone" means a fixed, unchangeable plan
I see you have an existing house where you want to add a rocket mass heater. Thomas' idea of a single centralized bell or stratification chamber would be perfect for new construction, but obviously not for your actual situation. Do you want benches for sitting on, or would vertical masses work better for some or all of the rooms? Assuming you can't safely make more than small holes in the walls, you could do a series of bells one in each room with short channels connecting one to the next.
The J-tube location looks fine. Where would the wood be brought in? It is good to make the path from there to the fire as short as practical, to minimize carrying and mess.
Why it is better a single bell for a newly constructed house?
lol
Thomas Tipton wrote:Hi Peter.
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Oh! Dear Thomas! Hello!
I'm glad.
Thank you for joining in.
Welcome to Permies.
Sounds like you have a grand plan here and there are plenty of folks on this forum who will be happy to help you along. First of all, let's get a better idea of your floor plan. Is it set in stone? Maybe you are in a position to maybe allow the whole house rocket stove heating system you have in mind help determine how the house is actually laid out in a "form follows function kind of way".
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Yes, the things you've stated are valid.
It is above ground level, at least 80cm(at least the base of the house at that point), and it is on a thick but i think pretty old (some wall painting say 1955 as they renovated the house back then) , cement based floor is there. Dont know yet how thick it is. I have a drilling bit which is 45cm long. I'll try to check out how deep it goes. So its not stone to answer.
Sorry I'm just really excited.
I made a drawing last year march, I'll try to attach here, changes are made, and it is going near the walls all longness.
(it looks like tiles, and the way of the red dot which meant to be the barrell, and the star is the chimney)
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My first reading of your idea had me visualizing a large brick bell attached to a J-Tube rocket core. The large bell was centered on the spot where four wall intersect, giving each room a radiating bulkhead. Are you familiar with bells or stratification chambers? I think this would be ideal in your situation. Either a large bell serving the radiant heat needs of four rooms or a large stratification bench built in the same fashion. So that at least part of one wall in each of four rooms will have a radiant bench.
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So yes. A J-style rocket sotve or mass heater, with the barrell, and dont really know much about stratification chamber sizes. (converges to zero in personal physical experience) read some about Peter Van Den Berg stoves, but I am a kind of bull on the market guy, head towards walls, n' run like hell type, but this time I want to do it different. =) With the help of more experienced people around the globe.
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Embedding waterlines is doable (part of my plans as well) and as long as you embed them in a heated mass and not expose them to the hottest part of the fire you won't risk any steam explosions AKA (Boom Squish).
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I'd like to lay the water lines Under the main lines outer of the wall side, but under where the wood gas exits the barrell, 2x 10m
maybe 4x 10m long 10mm diamter copper pipes with 90°angles, and 5 layered heat pipes, and put a pressure valve to the highest point and adding a maybe 20L "bucket" ("" because it is a barrell i think), for expansion of the steam.
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It would probably help a lot if you could post some kind of drawing, no matter now crude to give us an idea of how you see your home and we can see where it goes from there.
Or will it be too much for that little guy?