Gerry Parent

Not all of us are able to make a rocket mass heater, or have the time or desire to make one, but that doesn't mean we don't want one! I would LOVE to make this thread into a master list of rocket mass heater builders. If you have made a rocket mass heater and might consider building one for someone else, post here with a link to your build! The link can be a thread, a facebook gallery, a website, etc.


I can't guarantee that the below people will be open to making a stove for  you--they are the people who I have seen mentioned here on permies and at inventor events.

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USA:

Chris McClellan ("Uncle Mud"), California, has been building RMHs and teaching for some time, all over the US.
Mud & Rockets & Yoga Workshop in California

Kirk “Donkey” Mobert, Point Arena, California http://www.sundogbuilders.net/ http://donkey32.proboards.com

Thomas Rubino, NW Montana Dragon Technology: Rocket Mass Heater store

Dave Peckham, southwest Idaho. Built a 6" rmh and it works just like its supposed to.  Is happy to help others nearby, and into Eastern Oregon.  

Rich Points, lower Michigan. Is a RMH builder in central.  Would love to help you out with your build!

Glenn Herbert, upstate New York. has built several RMHs and rocket stoves and an oven, and would be available to work on systems in or near upstate NY.Rocket mass heater with 8" J-tube and bell

Erica and Ernie Wisner, Tonasket, Washington. http://www.ernieanderica.info

Matt Walker, Western Washington. https://walkerstoves.com/index.html

Isaac Workman  North West Montana   contact  dragontech@blackfoot.net  for more information

Sophie Gell, Delaware County NY: "I have built a RMH and multiple outdoor rocket cooking devices in Delaware County NY, somewhat near Eastern PA. I'd love to build one for someone or help out." Email: gell.sophie@gmail.com

Daniel Ray, Bitterroot Valley MT: Batchbox and J Style RMHs. https://www.spiritwoodnaturalbuilding.com/services-4

Sasha Rubin and John Orcutt, Mendocino CA: https://www.earthenshelter.com/portfolio-2/project-three-8zgh7-nxj84-zkd8c-gepft

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Canada

Chris Sturgeon, Whitehorse, Yukon, Canada. Has built a functioning 6" underfloor RMH in his greenhouse, and would be happy to give assistance to others.

Steve Fairbairn, Regina, Treaty 4 lands, Saskatchewan, Canada. Has built 6-inch, 8-inch RMH and a 8-inch batch box. Beenhired to put on a 2 day workshop which we built 8-inch RMH in a greenhouse. Can be seen in the innovators RMH DVD where he worked under Tim, building the oven, water heater and the griddle. Always glad to help people with there RMH.

Gerry Parent, Kaslo, BC.  Have built a 6" J tube and Batchbox RMH. Helped build a 'Shorty' RMH with Thomas Rubino.

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Europe

Peter van den Berg, The Hague, Netherlands https://permies.com/f/304/peter-van-den-berg
Batchrocket developer https://batchrocket.eu (8 languages, including English)

Satamax Antone, French side of the Italian border, 3 hours from Marseille, 1 hour from Grenoble. 1 hour from Torino. Grumpy old fart, who only does what he wants, when he wants. Hard to deal with. But if your project tickles his fancy. The outcome might be real nice!

Yasin Gach, France, website https://uzume.fr/ (French)

Pablo Bernaola, Spain, website http://estufasrocket.es/ (Spanish)

Eduardo Marquina, Spain, website https://estufasdeinercia.wordpress.com/ (Spanish)

Carlos Andujar, Spain, IG Cal Fang    (Spanish)

Joan Colin, Spain, artsambcaliu (Catalá)

Benjamin Dinkel, Spain, RocketMassHeaters.com, (English, Spanish, German)

Artur Jan Milicki, Poland, website http://www.pieceartura.pl/ (Polish)

BatchRocketPT, Non-profit organisation, Portugal, https://www.facebook.com/BatchRocketPT/ (English)

Warmte op Maat, Belgium, builder Joris Pouls. Website: http://www.warmteopmaat.be/. (Flemish)

Fornyet Energi, Denmark, Flemming Abrahamsson,  https://fornyetenergi.dk/raketovne/ (Danish, English)

Økobyg, Denmark, Bjarne Grube Wickstrøm, https://oekobyg.dk/?page_id=60 (Danish)

De Vrijlemerij, loosely translated as The Loam Freemanship, Netherlands. https://devrijlemerij.nl/ (Dutch) https://www.facebook.com/DeVrijlemerij/

Vat & Vlam, Maarten Welvaarts, Netherlands http://vatvlam.nl/ (Dutch)

Vuur & Leem, Gaanderen Netherlands https://vuurenleem.nl/rocket-leemkachel/ (Dutch)

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LatinAmerica - Argentina
Buenos Aires Province:
Fernando Davalos, in southern Buenos Aires city. Fer Davalos
Matias Maiza, Trenque Lauquen. Apus
Adrian Mancuso, northern Buenos Aires city. Otromodo
Carlos Sosa, best bread ovens. Tandil. Amaike
Pablo Kulbaba, Chascomús.  Hacono Estufas

Cordoba Province:
Edgardo Gailhou. Nono city. Edgardo
Hernan Durlach, Calamuchita. Charamasca

Santa Fe Province:
Nicolas Di Ruscio, in Coronel Bogado.NIcolas Di Ruscio Webpage
Nacho Robiolo, Rosario. Tacuaral

Mendoza Province:
Nicolas Lucero, Guaymallén. Kitek Estufas

Río Negro Province:
Diego "el Colo" Lev, El Bolsón El Colo
Carlos Ponticelli. El Bolsón Masa Térmica
Conrado Tognetti, El Bolsón. Conrado Tognetti on IG
Sebastian Montenegro, Bariloche. Tierra a la Vista
Sebastian Menant. Bariloche. Seba Menant on IG

Chubut Province:
Leo Nucci, Lago Puelo, Chubut Province. Tierrafuego

Neuquen Province:
Lucas White, San Martin de los Andes Madera y Barro
Nicolás Croci, Junin de los Andes Nicolas Croci on IG


LatinAmerica - Uruguay

Jonathan Dufour, Arcillarte Estufas
Leandro Torterolo, GEN Bioconstrucción

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Elsewhere

David Pittaway, South Africa. Website: https://www.perspectiveproject.co.za/rockets/

Kamin-Massa, Israel, builders Adiel Shnior and Shilo Kinarty. Facebook: https://www.facebook.com/watch/?v=2004140329672807, YouTube: https://www.youtube.com/channel/UCoSdz2kAhHunNBTrolzS2xA/videos Spoken and written word in Israeli.

Phil Stevens, Slow Farm, New Zealand. Website

Dan Hatfield Ii, Australia, Email: Danielhatfield8@icloud.com Youtube

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Who are more people to add to this list? Are you one such person?

Jamey
To keep the stray fire and smoke from coming out the feed tube (as Thomas suggested) try to keep your wood length at or lower than it's height. Also, a brick can be placed horizontally to partially cover the feed tube which increases the velocity and draw the fire will have.

Being an accomplice in this endeavor, I must confess that the muddy water was mostly my fault.

Over the many days of brick laying Shorty, she never showed any signs of being dull or drab until a day or so after she was lit and the bricks were able to start drying out. - This was when she showed us her true colours. It was like watching her age right before our eyes. All the beauty treatments given to her just weren't cutting it..... But she's just a young girl! How could this be?
This made me deeply ponder my own life. Like all of us, as we age, there are certain things we can only control to a certain point before we just give in and accept our impermanence.
We'll just learn to love her as she is and let her beauty be more than skin deep.
After all,  keeping Tom & Liz warm and cozy 24/7 is a beautiful thing.

However, as you already know, Thomas (with Liz's help) has found the fountain of youth and has demonstrated the power of their magic elixir with wonderous results.
Nice recovery Thomas!
My hands have been washed clean so to speak.
Guess now (in this case), beauty can be enjoyed both inswardly and outwardly with great pleasure.

Hi Rico
Welcome to Permies!
Matt Walker has answered a similar question about modifying an existing wood stove to make into an RMH.
Knowing first hand how awesome a properly built masonry heater works, I would highly recommend spending your time towards a full build from scratch rather than trying to make your wood gobbler slightly more efficient.

Hello Shodo,

If  you are looking to build a batch box, Peter van den Berg has given a good write-up about question you asked on his website:

https://batchrocket.eu/en/building#size

Having experienced cold plugs, shoulder season burning, wind gusts, new builds etc which can all be potential back drafting material, I would not build another RMH without a bypass of some kind.
A priming port that Austin suggested would be my second choice... Lower tech (meaning slightly less complex than a bypass to install and bullet proof for anything to go wrong with) but not quite as functional as a bypass (can only be used for priming and as a cleanout/ inspection port).
After deciding on a bypass, the next question would then be what style to choose?
There are simple to complex based on your skill level.
A topic already discussed on Permies but could easily be revisited to help keep that resource updated.

Sounds like your looking at the question from the wrong end John. The vertical height of the chimney is not usually the deciding factor to calculating the amount of heat you can extract and still get a decent Delta T for draft.
The size and design of your RMH is most often asked first.
So, what have you chosen?
Once that is known, suggested pipe lengths or ISAs can then be given to work with (which Thomas and Glenn have already pointed out some of them).
So unless your vertical chimney is exceptionally tall/short,  not built to standards or let's say is known to have constant wind problems that affect draft, you may want to adjust these heat extraction suggestions up or down accordingly.

Coydon Wallham wrote:I've done the tarp thing while learning cob at a couple of places, but always with the cheap plastic tarps. The only one of those I have is about to be retired and I don't want to purchase another. Does it work as cleanly using cotton canvas tarps- will it clog and stick to the fabric too much?

The lumber store/ mill often has used lumber tarps free for the taking. I believe they are just destined for the garbage anyways so this gives them a little longer useful life (amongst many other uses out of direct sun for longevity.)

Hi Rebekah,

Have you tried making cob with a tarp?
Easier with 2 people but can be managed with just one.
Place all your ingredients onto one side of a 6x6' ish
tarp, then grab the 2 corners and lift. The tumbling action mixes everything together. Repeat on the other 2 corners back and forth.
I found it best to put your sand down first, clay and then water on top to help keep the tarp from getting all caked up and heavy.
Once fairly mixed, you can then fold the free end of the tarp over the mix and walk on it keeping your boots or feet clean.
Stick with it !

Great job!
Very nice to see (and feel) your dream finally come true