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Post by freelsd on Oct 1, 2012 7:56:06 GMT -8
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Post by Donkey on Oct 1, 2012 15:55:17 GMT -8
The down feed arrangement of the J tends to hold the wood at optimal placement for burning and air gets metered very well considering the simplicity of it all.
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Post by freelsd on Oct 14, 2012 9:31:33 GMT -8
Thank you!
May I know how long does steel heat riser usually last?
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Post by Donkey on Oct 16, 2012 6:47:48 GMT -8
Thank you! May I know how long does steel heat riser usually last? Really depends on the temperatures in yer stove and what kind of steel yer using and how much air it's getting, etc.. In my shower house, I used black stovepipe, knowing that it would essentially vaporize.. I found the heat riser in shards down in the firebox within a month. 'Course, that's a strategy.. I stuffed the thing with a pearlite/clay mix that DOES last and the old piece of stovepipe can just go away and that's fine.. I did the same thing on a rocket powered sauna.. It's a few years old. I used stainless steel stovepipe. I went over there just a couple days ago to replace the barrel (it's burned through the top) and found that the pipe is still in (almost) perfect condition.
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morticcio
Full Member
"The problem with internet quotes is that you can't always depend on their accuracy" - Aristotle
Posts: 371
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Post by morticcio on Oct 17, 2012 5:54:27 GMT -8
Out of interest how thick and grade was the stainless and how often/hard was the stove used?
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Post by Donkey on Oct 19, 2012 8:05:09 GMT -8
I really don't know the grade of the steel, I pulled it out of the dump. Nor did I really pay attention to it's gauge, though it seemed no thicker than standard, black stove pipe. here's an image of the thing: The sauna gets used about once a week, rain or shine and when it's used, it's used FULLY.. The owners are sweat lovers, they heat it up something ridiculous, not a friendly temperature for everyone. I'd say, (an educated guess) every Sunday, the thing sees somewhere around 2 hours of hard stoking, sometimes MUCH more, sometimes a little less.
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Post by freelsd on Oct 21, 2012 0:14:26 GMT -8
Does I get it right that you have coated the stainless tube seen on photo with perlite/clay mix, so even if the metal ever gone, the perlite/clay mix will hold the shape and work as a heatriser?
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Post by Donkey on Oct 21, 2012 6:41:22 GMT -8
Yes, Between the little barrel and the stovepipe is filled with the pearlite/clay mix.
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Post by freelsd on Oct 21, 2012 23:14:19 GMT -8
I wonder if perlite/clay mix will get as hot as metal heat riser? Why then not use cheap iron tubing and let it rot as soon as possible
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Post by Donkey on Oct 22, 2012 11:36:52 GMT -8
Sure, why not.. Though I almost always pull my materials out of the dump.. It's hard to get cheaper than completely free. Ive never seen iron tubing of an appropriate size in our waste-stream.
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