hpmer
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Posts: 240
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Post by hpmer on Feb 18, 2012 14:16:59 GMT -8
Quite possibly the worlds smallest portable maple syrup facility  I use a chinese wok on top of the heat riser. 30-40 parts of water must be boiled off for every one part of syrup from the sap of a suitable maple tree. So 30 to 40 gallons of sap for every gallon of syrup. |
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hpmer
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Posts: 240
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Post by hpmer on Feb 18, 2012 14:22:57 GMT -8
Works best with temps at the top of the heat riser above 900*f
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Post by Donkey on Feb 18, 2012 18:03:33 GMT -8
Oh, that's clever!
What's the refractory lookin' stuff around the feed?
Looks a bit like wood-ash/clay..
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hpmer
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Posts: 240
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Post by hpmer on Feb 19, 2012 2:47:23 GMT -8
No, it's perlite/furnace cement. I did use wood ash/clay for the top half of the heat riser after I ran out of the cement.
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hpmer
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Posts: 240
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Post by hpmer on Feb 19, 2012 5:25:44 GMT -8
The guts of the fire box. Built around a form made from floor underlayment. Notice the cracks. Next time I'll use fire brick.
The rebar holds the wood back a bit from the edges and helps hold it up longer before falling into the burn tunnel.
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hpmer
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Posts: 240
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Post by hpmer on Feb 19, 2012 5:28:30 GMT -8
Top assembly. Rebar supports Wok ring onto which sits the pan. Heat riser is mix of perlite/furnace cement on bottom half and finished with wood ash/ clay.
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hpmer
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Posts: 240
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Post by hpmer on Feb 19, 2012 5:32:29 GMT -8
Weber kettle lid completes the unit. I use it outside in the wind and this shields the fire and keeps it smoke free. The holes allow some regulation of air and views of the fire (sort of)  , though not air tight by any means. |
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, though not air tight by any means.