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Minimum riser height for 6" RMH  RSS feed

 
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Hi All,

I'm playing around with making a RMH and I had a couple of questions if you could assist me...

1. What's the minimum effective riser height for a 6" riser? I need this RMH to achieve quite high temps.

2. Can I have 6" feed and 6" riser and 6" exhaust? Or do I need to increase one of those components?

Many thanks for your help. Jim.
 
Posts: 217
Location: US, East Tennessee, north of Knoxville
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Maintaining a 6" CSA throughout will be no problem. Riser height depends on the construction materials used, how the system is built, and whether including gas mixing build modifications, chimney system design and etc. Tallest of 6" risers range from 44 ~ 48 inches. But there's lots more to consider. Here's "the book" every RS/RMH builder/tinkerer should have in his/her library. It addresses all the details of construction, materials choices, and also covers the RMH foundation right up to the top of the chimney:

http://www.newsociety.com/Books/R/The-Rocket-Mass-Heater-Builder-s-Guide
 
Jim Storey
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Thanks Byron. I'm actually looking for the shortest height, not the tallest height.

Any ideas??
 
Byron Campbell
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Location: US, East Tennessee, north of Knoxville
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Have you checked out Matt Walker's riser'less core design? -->

http://donkey32.proboards.com/thread/1624/walker-riser-less-core?page=1
 
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