John Traynor

Hi AL
Thanks for your comments, I take on board what you say, and I will watch the videos.
cheers John

Hi AL
My first reply bombed out, internet problem, second reply, questions answered in order.
Thanks for your comments.
Experience gained listening to you tube, and including general building experience.
I plumbed the chamber first using fire clay for the brick joints I let it set and then tamped the structural cob in place.
I used 3 sand 1 clay with water to encase the horizontal pipes, as mentioned by Erica and Ernie in there you tube classes.
I do intend to put a 2/3 inch layer of cob on top of the fire clay encased pipes, and then a final coat of fine cob mix.
I will remove some of the cob between the reflective barrier and the mass to create an air gap.
The transitional Area that you mention, The floor does look like wood but it is in fact a tiled floor, thanks for the information on out gassing this was a new one to me.
What I did before construction the rocket stove, was a layer of insulation, then a sheet of plasterboard, then a aluminium reflective sheet, a layer of construction bricks, then the rocket stove its self using fire clay to construct.
I have taken on board your comments regarding the chimney, and have started to plan increasing its length
Hey AL your comments re this turned out to be a little more negative, don't worry about it if you don't ask you will never know.
AL I have a question; out gassing; I have used polystyrene insulation to create a heat barrier [picture enclosed] then I filled in with rubble and soil, then 2 inches of cob, finally laid the horizontal pipework, will the polystyrene out gas?
The bubble wrap you mention is a hydro insulation which keeps the damp from penetrating the building, the vets that you mention is a natural air floe vents for my stair case.
Thanks for your comments
John

Well that's it for now Al, I hope that the pictures give everyone a better idea of what I have done. hopefully when the fire clay and cob has dried it will resolve the problem

Thanks John

And more photos. AL

More pictures

Hi big Al
Thank you for your reply I have attached 3 photos and I'm going to attach some more on a few more posts because 3 is the maximum amount per post.
If you look at them you will get a better idea of what I meant in my previous post.
Thank you for your advice and i hope you will be able to advise me further.

Answering some of your questions :

My house is 4 floors high, and I'm constructing the rocket stove in the basement so I am hoping that I do not need to take the chimney pipe up to the roof level, [fingers crossed.] I will put a cap on the top of my chimney pipe to keep the insulation dry. The pictures that I am sending should give a clearer view of what I have done so far, I'm just hoping that there is no problem with me sending the extra pictures I intending to send, 12 in all.

John

Hi Everyone
Newbie here, can you help
Problem Water [steam] staying in my horizontal pipework;
I have just constructed a rocket stove in my basement, basically there is 10 meters of horizontal pipe work which then rises 2 meters, 6 feet then it goes into a 90 degree bend through a concrete wall into a J tube, and is then rises vertically [outside the house] into metal chimney approximately 3 meters in height, a total vertical height of 5 meters, 16 feet.
The burn chamber seems to be burning well, and roaring, all the pipework is 150 mm, 6 inch, the J tube which goes through the wall is cob insulated, the 150 mm 6 inch chimney pipe is insulated with rock wool, and has been placed inside a 200 mm 8 inch pipe.
The heat riser is constructed of fire brick, I have put a metal sheet around the heat riser and then packed it with cob, a metal drum has been placed over the heat riser the gap between the top of the burn chamber and the barrel is 3 ½ cm, 1 ½ inches.
The gap between the heat riser and the barrel is 7 cm, 3 inches; all round, the burnt gasses are diverted into a box which connect to the 10 meters of horizontal pipework, and then rises into the J tube and then the chimney.
I have two possible cures to my problem the first one is that the gasses, steam, are basically not getting enough draw from in the chimney? Which is why the steam /water are staying in the pipe work ?
My second thought is that the fire clay, and the cob are not yet dry and this could be adding to the problem?
If anyone can advise on my problem I would be grateful to hear from you.