roca
New Member
Posts: 4
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Post by roca on Jul 1, 2014 1:42:17 GMT -8
Hi there,
i am Caro, or roca, another newbie that discovered the existence of RMH only a couple of months ago, and i am considering of using it in our future home, that will be built in rammed earth.
Since a while i am searching the net and looking for an answer to a (maybe silly beginner) question:
As the place where you feed the RMH is open, doesn't it smell smoky all the time ? Does it depend on how well the rmh is designed or...
I apologize if this is something obvious, but i haven't found a clear answer on that topic anywhere yet.
greetz roca
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roca
New Member
Posts: 4
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Post by roca on Jul 3, 2014 1:07:48 GMT -8
40 views and no one can/wants to answer this basic question about smoke ? i am not trolling, or being provocative, i am honestly asking
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Post by ericvw on Jul 3, 2014 3:33:47 GMT -8
Hi Roca, Welcome to the boards. As long as you have a good chimney, air should always, even when RMH is cold, be drawn through by natural draft. Our house has a centrally located chimney and the soon-to-be replaced wood stove never smells smoky. My parents, on the other hand have a exterior double wall metal chimney, and they have to put a candle in their stove to create a draft. J tubes, batch boxes, or any iteration of an RMH can all at least be closed off at the wood feed, w/ a door, a brick, whatever. So I hope this answers your question. And I was 1 of those 40 viewers, just real busy putting something together to heat our home this winter! bring on the questions! Eric VW
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Post by Daryl on Jul 3, 2014 4:43:03 GMT -8
40 views and no one can/wants to answer this basic question about smoke ? i am not trolling, or being provocative, i am honestly asking I only cook with brick or play with gasifiers outside. I read threads because I am an Invention Junkie. I don't mean to be rude, it's just that I don't have any experience with indoor rmhs. Welcome, Roca.
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Post by matthewwalker on Jul 3, 2014 7:52:22 GMT -8
Roca, I can say that after living with my RMH as my main heat source for the last three winters smoke in the house is absolutely a non-issue. My metal box wood stove was an order of magnitude more smokey/smelly even with a sealed door.
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roca
New Member
Posts: 4
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Post by roca on Jul 3, 2014 22:05:25 GMT -8
Hi guys, and girls, thank you for taking the time As long as you have a good chimney, air should always, even when RMH is cold, be drawn through by natural draft. Our house has a centrally located chimney and the soon-to-be replaced wood stove never smells smoky. My parents, on the other hand have a exterior double wall metal chimney, and they have to put a candle in their stove to create a draft. J tubes, batch boxes, or any iteration of an RMH can all at least be closed off at the wood feed, w/ a door, a brick, whatever. Hello Eric, thank you for taking the time, :-) i got really hooked on this subject and impatience took over. Yes, that does answer my question about the smoke/smell specifically to the RMH. I guess the good draft with the chimney is key, just as it would be with an open fire in a chimney... Thank you Mathew for sharing your own experience, we have friends with homemade "closed" wood burners in there cabin and it always smells smoky in there. So "open feed" and RMH doesn't necessarily mean smoky house. Thanks Daryl, i didn't assume averyone in this board was rude just because i didn't get an answer, i really thought my question was too "basic" to put it politely ;-) I am sure other questions will come. Wish you a nice day or night depending on which side of the globe you are all walking :-)
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Post by DCish on Jul 4, 2014 4:49:20 GMT -8
Hopefully you've read the "bible" on rocket stoves ( http://www.rocketstoves.com). Many of the more basic questions will be answered there. As I am aware of it, there are any of a number of things that could contribute to smoke-back on a j tube: a restriction somewhere in the system; too short /poorly installed final chimney; too tall a feed tube; too large a gap around the fuel at the feed; harvesting too much heat, leaving insufficient temperature differential at the end to create draft; testing the heater on a hot day (again, too little temp diff to create draft); random gust of wind down an uncapped chimney. There are probably many more than this, but this should give a bit of an idea of the themes involved... strong draft, unrestricted flow, and a well-managed fire, and you should have have no to minimal smoke-back.
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roca
New Member
Posts: 4
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Post by roca on Jul 5, 2014 23:10:22 GMT -8
thanks DCish, yes i did find the link to that "bible" here on the site yesterday
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