Robbie Mendelssohn

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since Mar 08, 2019
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Recent posts by Robbie Mendelssohn

Ah ok, I was just guessing at those dimensions based on some pictures I'd seen; when it comes to building I'll make sure I nail down the design checking that my tubes square with tried and tested designs!

This is my first experience with permies, it's great to know you people are out there caring about how my heater is going to work!!

Thanks again!
7 months ago
Ok thanks, I'll make sure I find the right blanket, it sounds like a key component.

Once I get started I'll share some photos and get some expert opinions!
7 months ago
Thanks for the interest and quick response!
The house is new to me, but is 20 years old, it is a concrete frame that is sturdy enough for the mass, the floor slab is thick anti-seismic concrete. I don't have any real data on its strength, but I'm confident it can hold up.

It's still conceptual, I would like to finish by next winter, so I plan to really refine and define the design before I get building. The mineral blanket you mention, is that glass wool insulation commonly bought in rolls?

And the stove pipe inside the blanket is just thin-walled steel? I had imagined using a 120mm inside a 150mm pipe filling the space between them with the glass wool, but that's only 30mm difference, which would be 15mm thick insulation (stuffed in tight). Maybe not enough. Also, I imagined that it needs thicker walls than normal (.06mm in Spain) stovepipe to not get holes in it at those high temperatures I read about!

I realise that this is going to work only if I get the dimensions correct, I guess I will get the book you mention as I keep hearing about it!

I plan to build it and test it outdoors to see how long the horizontal part can be, and yes the the actual stove part will be central in the house and I'll pass the exhaust through a masonry bench and over to the existing brick chimney which I will line with the 120mm tube.

But the great piece of info you have given me is that the outside of the stove doesn't need to be round, so I can be free to build it myself!

Thanks again!
7 months ago
Hi, I'm going to build a rmh for the first time in my new house in Spain, I want it to look pretty sleek and modern, like those lovely zaug stoves. Rather than using an oil drum, I want to use thick plate steel, which I have no way to roll into shape. Would a square sided body work? Our octagonal maybe? Anyone tried this? The inner riser will be thick insulated steel pipe and the general functioning I will base on the zaug model, with a pedestal etc. Would really appreciate any input!!! Thanks.
7 months ago