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beautiful rocket mass heaters

 
Cassie Langstraat
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Figured we needed to start a thread dedicated entirely to pictures of beautiful rocket mass heaters. Feel free to share any beautiful ones you find!


Richsoil


Richsoil


Ernie's Pics


Fire Speaking


Autonomie


Estufas de Masas


http://rocketstovestuff.wordpress.com/about/


Sun Dog Builders


Fire Speaking


Ben's Natural Building


NaturalHomes

A really pretty masonry heater which from my understanding is very similar to a rocket mass heater so I just had to add it.

LehmundFeuer

Again, feel free to post more pictures of beautiful rocket mass heaters to this thread!
 
allen lumley
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Cassie L. : Just so you know, Ernie W. Lusts after the 55 gallon Barrel in your 3rd picture correction 4th picture !
 
Cassie Langstraat
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Ha, what exactly do you mean by that Al?
 
allen lumley
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Cassie L. : I mean it would be a very dirty trick to call him up and tell him you were shipping him one if it were not absolutely true,

Kind of a Bucket-list thing to Make another RMH using that barrel, 70 years old if it is a Day !

While I am back here to answer your question. The photo on the cover of the 2nd Edition of Rocket Mass Heaters needs to be there

For the Good of the Crafts ! Big AL
 
Satamax Antone
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I'm sorry to say, but this one looks like toilets

http://www.inspirationgreen.com/assets/images/Blog-Building/Rocket%20Heater/juured.ee.jpg

But i love this bench.



 
Erica Wisner
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allen lumley wrote:Cassie L. : Just so you know, Ernie W. Lusts after the 55 gallon Barrel in your 3rd picture correction 4th picture !


Ernie says it is a nice barrel, and someone has polished it up pretty, but lust would not exactly be the word.
He favors them covered in canola oil and basking in the heat.

-Erica
 
Erica Wisner
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Satamax Antone wrote:I'm sorry to say, but this one looks like toilets

http://www.inspirationgreen.com/assets/images/Blog-Building/Rocket%20Heater/juured.ee.jpg

...


I can't follow that link, but here's an article which has a lot more images (and presumably, the above accused as well!)
http://www.inspirationgreen.com/rocket-mass-heaters.html
 
allen lumley
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Erica : Say hello to ''the elderly naval man'' for me, and tell him he has Mellowed ! Glad that he is getting around much better ! A & M
 
Cassie Langstraat
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Here are some RMH photos photographer Adi Segal sent us. Her website is here and her facebook page is here!









 
Betty Lamb
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do all rocket mass heaters have to be covered in cob? (I'm not being a smart ass I just want to know what other materials would also work in case cob wasn't handy).
 
Peter Ellis
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Betty Lamb wrote:do all rocket mass heaters have to be covered in cob? (I'm not being a smart ass I just want to know what other materials would also work in case cob wasn't handy).


Cob is not mandatory, but works well on multiple levels. Good density for holding heat, makes for a good seal/barrier around the duct work to assure you don't get gasses venting into living space. Paul Wheaton has experimented with a gravel mass with a portable RMH. I built one last year where I used cob to seal joints and make the burn chamber and feed tube, then buried the duct work in sand, because sand I have in abundance, but clay I have to buy.
 
Len Ovens
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Betty Lamb wrote:do all rocket mass heaters have to be covered in cob? (I'm not being a smart ass I just want to know what other materials would also work in case cob wasn't handy).


That depends on one's vision of the RMH. From a technical view, no. The mass could be other things besides cob. There are some that are made of all bricks (either high heat or common clay) and no metal parts or cob at all. Some people however, would feel a line has been crossed and the heater is now a masonry heater even though it uses the same principles in it's operation. Historically, The RMH has been a masonry heater that is made from found objects rather than bought materials so that one might have a very good masonry heater at a hundredth of the price of even an entry level masonry heater made of brick by a mason (about 10K CAD the last I heard). Personally, I would consider this a RMH:

Most would call it a contraflow masonry heater, but the riser is much smaller (and squarer) than the normal contraflow. Yes that is a high mass bench off to the left. Here is the build process:

Building the gymse

It shows the riser size and also the designer experimenting with running the flue down hill to exhaust.

That is probably on the very outside tip of what might be considered a RMH, there are many more examples of RMH made from brick that are more traditional in shape and operation.

From the masonry heater side of things (just to muddy the water), Alex Chernov designed a masonry heater that he felt could be built for a similar price to the original RMH and work just as well or better (every designer feels their design is better after all). He calls it the Russian Rocket. It uses the same number of fire bricks the RMH does, and then common bricks. (all of which can be scrounged for free if one is in the right place at the right time... I have a pile of fire brick I got free from a demo) In this article he uses masonry heater mortar, but he suggests a clay/sand mortar made much the same as cob could be used too.

Here is one built of all on site materials. Hand made adobe bricks and cob.
Here is another built inside a building.

As you can see, the field of high mass heaters is very broad and the RMH is just one corner of it. What seems to be happening as work is done to make the RMH a viable option for a home owner who requires a permit, is that the cost of the RMH starts to approach that of the masonry heater. Where they can be used at little expense (any high mass heater) seems to be where building codes are not a part of the equation.

In the end, the RMH needs to be built of something that can take the heat and provide a large mass, all while being safe(I would insert healthy in here too) to use in a dwelling.
 
Rick Howd
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Betty Lamb wrote:do all rocket mass heaters have to be covered in cob? (I'm not being a smart ass I just want to know what other materials would also work in case cob wasn't handy).


Absolutely not, but you can't have a RMH without some mass. So rock, gravel, sand, clay, brick, earth, water will all work to a degree, even wood with insulation from the initial heat. Cob isn't suggested for fun, it's just a proven mass, it might be better or even worse than other forms of mass.
 
Len Ovens
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Rick Howd wrote:
Betty Lamb wrote:do all rocket mass heaters have to be covered in cob? (I'm not being a smart ass I just want to know what other materials would also work in case cob wasn't handy).


Absolutely not, but you can't have a RMH without some mass. So rock, gravel, sand, clay, brick, earth, water will all work to a degree, even wood with insulation from the initial heat. Cob isn't suggested for fun, it's just a proven mass, it might be better or even worse than other forms of mass.


Notice the lack of the word "concrete". Concrete, like wood, could only be used once the flue gas cools below 600C other wise it crumbles. There is refractory concrete out there which would be ok... but most of us don't like concrete anyway

As you might (or not) guess, the use of portland cement in the mortar is also a bad idea. To add to this issue, even using concrete/portland cement in cooler parts of the design can pose problems as it doesn't seem to interface very well with clay based materials. So there is likely to be cracks develop over (probably not very much) time which would let flue gas into the dwelling. It is a good idea to overall, use materials the expand/contract at the same rate with temperature change. Most high mass heaters are therefore built with clay based materials to match the firebrick in the core.
 
Linda Myers
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I found this fireplace screen that I would like to use on my (future) RMH. I tried to post just an image but I'm doing something wrong.....


http://demandware.edgesuite.net/sits_pod20/dw/image/v2/AAID_PRD/on/demandware.static/Sites-pier1_us-Site/Sites-pier1_master/default/v1416509402050/images/2855727/2855727_1.jpg?sw=1500&sh=1500
 
Burra Maluca
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Here's the iimage. Right click, copy img url, paste it in the little box that comes up when you cick the Img button when you write a post.

 
Ludger Merkens
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Hi permies,

There are some nice pictures in this thread.
I like cob, but I'd also like to get rid of the barrel. (a cooking plate is fine)
I don't like the looks of the barrel, plus I imagine it is probably too hot to touch and thus prone to accidents.

I understand that the functions of the barrel are many. It works as a radiator and cools the gasses quick enough to create downwards pull. (Both reasons, why I can't simply cover the barrel with cob)
My question: is there any development going on, to design a rmh without the barrel? (A nice - no mentioning of a barrel in "rocket mass heater", thus we could even stick with the name)

(still a DIY version, lots of reading doesn't hurt)

--- Ludger
 
Satamax Antone
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Ludger Merkens wrote:Hi permies,

There are some nice pictures in this thread.
I like cob, but I'd also like to get rid of the barrel. (a cooking plate is fine)
I don't like the looks of the barrel, plus I imagine it is probably too hot to touch and thus prone to accidents.

I understand that the functions of the barrel are many. It works as a radiator and cools the gasses quick enough to create downwards pull. (Both reasons, why I can't simply cover the barrel with cob)
My question: is there any development going on, to design a rmh without the barrel? (A nice - no mentioning of a barrel in "rocket mass heater", thus we could even stick with the name)

(still a DIY version, lots of reading doesn't hurt)

--- Ludger


http://batchrocket.hostoi.com/html/foto.html



http://technologieforum.forumatic.com/viewtopic.php?f=19&t=27


http://donkey32.proboards.com/thread/1316/20cm-batch-rocket-stove-monster


http://donkey32.proboards.com/thread/848/18cm-inch-double-batch-system


http://donkey32.proboards.com/thread/1330/story-bells-20cm-batch-proposal
 
Ludger Merkens
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Thank you - Satamax Antone

my 'Nederlands' is more than rusty, but it looks as if I have to do lots of reading on 'donkey' now.

--- Ludger
 
Jessie Twinn
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Oh my goodness would you look at that stunning RMH the 3rd picture down with the oven or warmer in it.! I tried to find more photos of it to see how it's constructed but no luck. Can anyone help with more photos? Information? Anything?
 
Kelly Ravner
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My first cob! This is a 4" rmh with barrel made from an old electric water heater. In this photo it has just been completed and is still wet. After drying the surface was a little rougher than I wanted, but I still think it's pretty.
IMG_0163.JPG
[Thumbnail for IMG_0163.JPG]
4" rmh, my first cob!
 
allen lumley
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Jesse Twinn : I Googled ''Rocket Mass Heaters Pictures'' The use of the word 'pictures' or 'images' is like having a smarter search engine parallel to the regular one.

The original picture in this thread was labeled 'Ernies pics' this is what I came up with ! Link below :


https://www.pinterest.com/pin/271764158736365303/


From this side you can see the old cookstove it encases !

For the Good of the Craft ! Big AL







 
Daniel Ray
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I forgot about this thread until today, but I finally get to post my stove!!!
rmh.jpg
[Thumbnail for rmh.jpg]
 
Cassie Langstraat
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Oh my god Daniel, That is one of the prettiest ones I've seen! Thanks so much for posting!
 
Daniel Ray
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Thanks! It was my first one I ever built. My wife and I actually built the RMH and bench first, then we built the house around it. I managed to squeeze in 30' of horizontal tubing before taking it outside. It's running like a dream now, wish I could have made it to wheaton labs for the rmh demonstrations.
 
Cassie Langstraat
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Daniel Ray wrote:Thanks! It was my first one I ever built. My wife and I actually built the RMH and bench first, then we built the house around it. I managed to squeeze in 30' of horizontal tubing before taking it outside. It's running like a dream now, wish I could have made it to wheaton labs for the rmh demonstrations.


I love it! What is the house made of? Have you posted any other pics of your building process (of the house or rmh) on permies? I'd love to see more of it!
 
Daniel Ray
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The house is made of cob. You can check out our blog at montanacobcottage.blogspot.com where we recorded the process.
 
Burra Maluca
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Daniel Ray wrote:You can check out our blog at montanacobcottage.blogspot.com where we recorded the process.


Daniel - you'd be more than welcome to have your own thread here showcasing your work. You can also add a live link to your signature guiding people to your blog. I suspect traffic to it will increase substantially if you did those things.
 
Cassie Langstraat
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Gary Goodridge wrote:

This is rather beautiful. Any idea how much something like this would cost?


Absolutely no idea. Lol

Anyone else know?
 
Glenn Herbert
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Built by a professional to code? Somewhere in the $10-30,000 range I would suspect.
 
Len Ovens
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Glenn Herbert wrote:Built by a professional to code? Somewhere in the $10-30,000 range I would suspect.


10k will get you in the door with a mass heater to code. This one would be closer to the high end.
 
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Erica Wisner
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Sauna rocket (there is a mass heater under the wooden bench, and the feed access is from the changing-room adjacent)
from off-grid life, ben's natural building, or some such blog.

Here is the whole project: http://bensnaturalbuilding.blogspot.com/2013/02/rocket-mass-heater-designbuild-workshop.html

They had a 140 degree sauna, left the vents shut since it was 15 degree weather outside (or was it -15?). The room was still holding at 110 the next day.

-E

 
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