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Post by matthewwalker on Jan 2, 2013 12:52:47 GMT -8
I did finally make a video of how I built my home system, with a few improvements I've learned over the last year. Again, this is not a stand alone stove, but meant to act as a liner inside a cob structure. It will crack, it will wear, but if you cob some hard tile/brick/refractory around the inlet of the feed to resist wear, the rest of it should hold up fine. Any wear spots or areas of concern can be patched with a handful of the same mix when required. There's a lot of ways to do this, this is one I've used with success.
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Post by Deleted on Jan 3, 2013 4:09:23 GMT -8
I have started my professional life as a foundry model-builder.
From this background I would rather make it in two halfes,
as Peter did with his little horizontal beast.
In this way it would be simple to build it up of several layers with different properties.
Many cores could be build from one model.
Two models would only be needed if the core is asymmetrically,
for example by a build in venturi slot.
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Post by prescott on Feb 28, 2013 19:02:50 GMT -8
What if this was lined with mineral fiber board? I know the stuff isn't cheap, but is (I think but need to learn more about it) somewhere between your homemade goodness and firebrick. We wouldn't necessarily get all those trick touches that the peterberg core has, but it's like driving a vw (tdi w/biodlesel thank you) versus a porsche... It gets you the same place, is it worth the extra, if affordable in the first place?
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Post by matthewwalker on Feb 28, 2013 20:04:54 GMT -8
I'm not familiar with it, maybe someone else can chime in. If it's hard enough to resist abrasion wear in the feed area, but still fairly insulative, it might be a winner.
I've been burning a core I built like this one, with no furnace cement or fiberglass, as my sole heat source for over a year now. It's holding up beautifully, so I'm not sure I'd want to change much, unless there was a significant improvement to be had. This is pretty simple. I like the VW analogy!
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Post by matthewwalker on Feb 28, 2013 20:53:18 GMT -8
I finally finished the heat riser video. It's pretty basic stuff, but hopefully it will be of some help.
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Post by stephenson1 on Mar 1, 2013 4:47:07 GMT -8
Has anyone ever tried regular fiberglass insulation torn into fine shreds as a way of strengthening a mix? It'd probably burn out at the surface, but deeper into the body where it's a little cooler mightn't it hold up?
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Post by matthewwalker on Mar 1, 2013 8:58:47 GMT -8
I would imagine it would be similar to the matte I used. I haven't tried it though.
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