Benjamin Dinkel

Apprentice Rocket Scientist
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since Oct 01, 2019
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Biography

Environmental engineer with a masters in renewable powers using the magic powers of permies.com to learn all about the "rocket" technology and hopefully become a rocket scientist one day
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Province of Granada, Andalucía, Spain
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Recent posts by Benjamin Dinkel

Hi Tom,
this is a good collection of information here on permies.

https://permies.com/w/rmh-resources

Afterwards there's a bunch of people here that will help you with more specific questions.
Welcome aboard!
Thanks for all the tipps so far. I'll consult with a builder here.

And I think I have some of that material left over here, Burra.

I'll keep you posted once we move forward
4 days ago
Thanks Matt.
So you would go and put Rockwool on the existing wall and then put plaster over it? Or another new wall in front?

How would you attach the Rockwool to the old wall to get the best soundproofing?
4 days ago
Dear permies,
a friend of mine wants to soundproof her living room wall. It's an old spanish house with relatively thick walls that are shared between neighbors.In her living room she can hear them talk and can hear the TV, without making out what exactly they're saying.
She would like to soundproof the wall and also reduce the wifi coming through from the neighbors. The wall has to be replastered anyway.
My brain instantly went to clay, as in heavy and thus reducing sound. Would adding a 5 cm clay sand (lime) plaster help?
Do you have other ideas involving (mostly) natural material?
Thanks in advance
4 days ago
It’s a type of rat that mostly eats fruits and nuts and lives in the trees here. Quite pretty. Our cats get some, but there are more. I can hear them chewing in the almond tree every night.
They ate the nicest and biggest cobs and just left the middle part. As soon as it got ripe
2 weeks ago
Here are some photos of the yield.

I got a good amount of maize, but the rats ate 50% of the big cobs


This is the squash. More than we can eat with only 2 people. I've been giving plenty away.


Unfortunately hardly any beans, they started real late and were hard to see. But it was old seeds, mixed varieties.
Any recommendations for a variety that does well with her other sisters?
2 weeks ago
What a good question Eloise, thanks for asking.
And what great answers, thank you Thomas and Julian.

This is a really neat and concise collection of the different RMHs.
I have nothing to add, but like a lot of good questions it makes me have another question.

thomas rubino wrote:
It utilizes a unique airframe that supplies fresh air to the top and upper sides of the batchbox rather than the air coming in from the bottom like all other wood burners.
This airframe allows the use of a door with a large window, (mine is 7x7)


Thomas, would you go into detail about that door? And why does the design allow a bigger window? Or is that part of the door plans you're offering at https://dragontechrmh.com/53-2/?
2 weeks ago
Hi Christopher,
yes, the overall length, roughness (material) and the number of elbows will influence the draft.
  • 1. Yes, that will happen. You want enough length to extract a lot of heat while leaving enough to have a draft. There's some calculations in the Wiesner's book. Also there's some rule of thumb lengths. But it depends on the size and type of heater you're planning
  • 2. If I understand you right your question is whether there's a choice between a small and hot mass and a larger, not so hot mass? It mainly depends on your needs and site, as for example in warm climates a smaller, more reactive mass would be preferable
  • 3. It depends on the size and type. A 6" J-Tube roughly every 20 mins I would say. But you often only have to run it for 1h or 2h. With a Batch Box it's liek a normal wood stove, depending again on the size.
  • 2 weeks ago