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Post by ronyon on Sept 16, 2017 4:24:10 GMT -8
Ah,got it.
Perfect,it's now on my project list!
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Post by craypappy on Sept 16, 2017 14:59:54 GMT -8
Thanks so much for info!! I believe I'm going to love ceramic fiber board!
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Post by ronyon on Sept 16, 2017 18:33:42 GMT -8
Pinhead, that seems too damn easy!
Sorry for asking superwool questions in a ceramic fiber board threadđ
I'll be cruising your threads for more info.
<Edit cursing to cruising!>
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Post by Orange on Oct 1, 2017 3:13:37 GMT -8
Great vid Matt  Aren't you concerned about aluminum foil peeling? Will you add secondary air? |
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Post by matthewwalker on Oct 1, 2017 6:02:27 GMT -8
I'm not concerned about the foil, although I'll be interested to see how it holds up over time. I imagine it will be mostly fine, maybe a bit deteriorated at the top section. I'm good at being wrong though! I do like to run a J with a P-channel. Not sure if I'll bother for the sauna heater though. You can see how I do it on the same core, in the Aluminum Series. I use Peter's P-channel made out of angle iron bolted to the top front edge, with holes for the air. It does as much to protect the tunnel from wood abuse as it does to keep the superior air intake path open.  |
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Post by Orange on Oct 6, 2017 7:45:17 GMT -8
I guess now we can also make P-channel out of ceramic  and if the fireclay bricks are only used now for protection of ceramic than they can be replaced by a thin metal sheet and reduce mass even more  |
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Post by briank on Oct 6, 2017 19:10:48 GMT -8
I guess now we can also make P-channel out of ceramic and if the fireclay bricks are only used now for protection of ceramic than they can be replaced by a thin metal sheet and reduce mass even more It would probably work in a J, but âMetal is doomedâ - I think the fire brick brick splits are still necessary in a batch box.. |
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Post by Orange on Oct 7, 2017 11:03:23 GMT -8
I guess now we can also make P-channel out of ceramic and if the fireclay bricks are only used now for protection of ceramic than they can be replaced by a thin metal sheet and reduce mass even more It would probably work in a J, but âMetal is doomedâ - I think the fire brick brick splits are still necessary in a batch box.. yes but you only need some scrap metal sheet for the bottom and sides where it isn't too hot. And you can use it later to throw the ash out |
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Post by briank on Oct 7, 2017 11:23:19 GMT -8
It would probably work in a J, but âMetal is doomedâ - I think the fire brick brick splits are still necessary in a batch box.. yes but you only need some scrap metal sheet for the bottom and sides where it isn't too hot. And you can use it later to throw the ash out If the entire batch box firebox is made from ceramic fiber, there is no area âwhere it isnât too hot.â My firebox at peak is a blast furnace. I canât get near it even to add wood without welding gloves, and even then itâs very hot. I made my previous model portable. Eight hours after the last burn went out I was taking it apart to transport it home from camping with friends, and after 8 hours I still burned holes in my work gloves (rubber dipped fingers and palm) handling the fire brick splits. |
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Post by Orange on Oct 8, 2017 11:01:19 GMT -8
ok  is there any other material that is light, strong and heat resistant? and in full ceramic box, p-channel is much more insulated than in firebrick one. Any concern that the secondary air isn't preheated enough? |
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Post by briank on Oct 8, 2017 19:58:59 GMT -8
ok is there any other material that is light, strong and heat resistant? and in full ceramic box, p-channel is much more insulated than in firebrick one. Any concern that the secondary air isn't preheated enough? Space shuttle tiles? Peter thinks that the last several inches the secondary air travels through the upright tube prior to the Venturi port is more than adequate to preheat it. Iâd have to agree. |
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Post by Orange on Oct 9, 2017 11:57:13 GMT -8
great, problem solved i'll put some old tiles in the box, they are 1/3 of the firebrick tiles in weight and size and not an issue if they break. |
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Post by briank on Oct 9, 2017 16:29:08 GMT -8
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Post by Orange on Oct 10, 2017 6:28:25 GMT -8
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Post by Orange on Oct 13, 2017 7:59:29 GMT -8
I'm curious what is the temperature of ceramic board/wool that is 1 inch or less thick? I mean the temperature on the outside of ceramic firebox and riser. Does it make sense to add more insulation (rockwool, ytong, perlite..)?
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is there any other material that is light, strong and heat resistant? 