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Post by matthewwalker on Apr 24, 2015 5:58:45 GMT -8
This is the down draft into the oven from the cook top, and exit up draft to the chimney. Otherwise the oven is made up of the outer skin of bricks, just a brick bell. I don't know the exact size, but it's just about symmetrical with the firebox side, or could be. So, say a 23" sq. oven, ish. Let me know if you need more detail, but there's not much to it.  |
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docbb
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Post by docbb on Apr 25, 2015 1:46:59 GMT -8
Docbb, I'd love to see your sketch up model of the core if you're willing to share. I started modeling that but am only partway done. So here is the DropBox link to the coretried to stich to the pics on Matt'site |
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docbb
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Post by docbb on Apr 25, 2015 1:50:19 GMT -8
This is the down draft into the oven from the cook top, and exit up draft to the chimney. Otherwise the oven is made up of the outer skin of bricks, just a brick bell. I don't know the exact size, but it's just about symmetrical with the firebox side, or could be. So, say a 23" sq. oven, ish. Let me know if you need more detail, but there's not much to it. Thank You, is it a Bypass on th upper left quarter of the picture? |
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docbb
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Post by docbb on Apr 25, 2015 4:46:01 GMT -8
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Post by matthewwalker on Apr 25, 2015 5:28:47 GMT -8
Bypass is between the up and down flues, right at the top. Not visible in the photo. |
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Post by manuel on Apr 29, 2015 2:40:30 GMT -8
Hello all!
I've only made three RMH up to date but my partener and I feel brave enough to keep on learning and building. We were thinking about a kitchen-stove-water heater for his strawbale house, intented just for cooking and having warm tap-water for the washing, so we thought about a 6" batch-box (with riser) with walls and top (all but the pot rings) insulated, along with a bell for an open-water-coil heater.
Now I've come to these threads about the riser-less stoves and WOW, I want one!!!
Matthewalker, I'm reading the posts and watching your photos, thinking a lot about it, and now I wonder: since you say this stove seems to equal a 6" batch box in performance, there should be still lots of heat waiting for us to recover. According to the PvdB's dimensions and performance charts, I gess we could still add at least 3 to 4m2 I.S.A. of bell (maybe we could consider the stove itself like a half-barrel/half masonry heater). What do you think about it? Could we then add another bell with the usual barrel with cooper coil and water? or a bench?
Maybe those are silly thoughts, but don't they sound doable?
I'll let you know as I draw (better on a new thread)
Thanks again for sharing,
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Post by matthewwalker on Apr 29, 2015 3:29:55 GMT -8
I think it's doable, but I haven't tried so you will be experimenting for sure. I think it will work fine, there is a lot of power going unused in my little cook stove layout, it could use more mass for sure if it was intended to be an efficient heater.
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Post by manuel on Apr 29, 2015 12:49:08 GMT -8
I think it's doable, but I haven't tried so you will be experimenting for sure. I think it will work fine, there is a lot of power going unused in my little cook stove layout, it could use more mass for sure if it was intended to be an efficient heater. Thanks, Matthewwalker. So let's begin drawing. I'll post a new thread as soon as I have some sketch to share and ask. |
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Post by shilo on Apr 30, 2015 19:32:50 GMT -8
Matthewwalker, in one word-
Wow!
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Post by independentenergy on May 1, 2015 3:19:43 GMT -8
Hello Matt
This system is great! ! !
a question. . . The second combustion air is only the steel channel that runs on the floor of the hearth or requires also the vertical tube with the cut ?
Sorry for my english
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Post by matthewwalker on May 1, 2015 3:48:42 GMT -8
IndependentE, yes, that is correct.
Shilo, I know! I think maybe now you do too. We are the only ones, but yep. Wow.
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Post by shilo on May 1, 2015 4:03:58 GMT -8
we made it with third air..
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Post by independentenergy on May 1, 2015 5:31:45 GMT -8
Matt since I read this post in mind passed a thousand ideas , seems to have the perfect features for my ideal stove , cook at head height , heating , oven . . .
I love the wood stoves remind me of when I was a child .
Know that you can now combine wood stove and rocket stove in a compact design is a dream for me . . .
Thank you so much for sharing .
That said , I piled the bricks , but that size for primary air and secondary air if I may ask ?
thanks again
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Post by matthewwalker on May 1, 2015 14:05:28 GMT -8
Thanks IE, I feel the same way. I think it's a huge step forward, I doubt I'll build a riser rocket ever again.
Primary is 2" sq. and secondary is roughly 2.75" sq. for a 6" system. Needs more primary for start and warm up.
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Post by independentenergy on May 2, 2015 3:46:26 GMT -8
Very little air enters this stove ! ! ! I wondered if the cutting of the pipe is best left addressed to the throat or put it in the middle to the bottom of the fireplace ?
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