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Rocket Mass Heater Build Toronto! An Innovative hands on building workshop.

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Hello! If you want to spend a weekend learning how to build a Rocket Mass Heater for heating space and bodies, for cooking and dehydrating foods. This is a hands on learning, sharing, collaborative workshop, a feast, a social and much more!
@ The Bartley Eco-Village Toronto Ontario

Permies forum members receive a $20 discount.
It would be great to have local Rocket fanatics attend!


Rocket Stove Builder Andrew Brunning &
The Great Engineer* Petro
In Co-Creative Partnership with
the Bartley Eco-Village
Rocket Mass Heater Build Toronto
November 22nd – 23rd 2014
Learn to build your own resilient wood heating system.

We are designing and building a hybrid Rocket, Pellet and Wood Gasification Air and Water Heating System for a 40,000sq/ft commercial building in Toronto ON. The Rocket Mass Heater will be a hand-built 8" Core using Refractory Fire Bricks and will incorporate a thermal mass battery. The Rocket Stove will also provide a primary cooking, baking and food dehydration station for the communities’ organic food production kitchen & We Want Your Help Building It!
Together we are learning, sharing and helping each other to spread the adoption of a new but ancient heating technology that will help curb pollution and environmental destruction. Welcome to the future of healthy resilient heating!

Date: Saturday November 22nd and Sunday November 23rd 2014
Time: Sat – 9:00am-5:00pm , Sun 10:00am – 5:00pm
Location: 160 Bartley Drive, Toronto ON (Victoria Park & Eglington)
Tuition: $200.00 (Register online @
Or Pay Cash in person at Bartley Building.
Lunches: Snacks, Beverages and Vegetarian Lunch Provided (Made with Love). Please contact Chef Jenny G if you have an food allergies or special dietary concerns.
Saturday Potluck Dinner: Bring a dish or dessert to share for Saturday dinner!
Workshop Information:
Bartley Building Co-coordinator – Frank -
Workshop Guides:

Andrew ‘Andy’ Brunning
Andrew built his first Rocket Mass Heater(RMH) to heat a low tunnel cold frame 'greenhouse' in the backyard and has since offered RMH workshops in shipping containers, homes, outdoor kitchens and greenhouses. Andrew first brought Ernie and Erica Wisner to Guelph Ontario in the fall of 2013 to launch the introduction of RMH technology and training in Canada. He has worked with pouring refractories and recently built a portable rocket barrel oven using a cast refractory core; Andrew has begun to build traditional Masonry Heaters and is a member of the Masonry Heater Association. With a background in energy efficiency, renewable energy, LED Lighting and Natural Building, Andrew's path of Yoga, Organics, Sepp Holzer Permaculture and Beekpeeking has led him into collaboration with the Bartley Eco-Village Community.

Petro – Engineer* / Genius Maker Of a Million amazing things
Petro has worked in the custom automotive parts manufacturing industry operating his own factory. He has worked with top Engineers at Hydro One Nuclear Division and now operates a state-of-the art Metal fabrication shop providing custom manufacturing services and on-site emergency repairs of just about anything you can image, he can rig and fix professionally. Petro is a member of the Bartley Eco-Village and is dedicated to taking the 40,000sq/ft building off the grid by using wood gasification for heat and power, rocket & pellet heating systems. He is a meticulous creator, who never leaves a job unfinished; often saying that his projects are like his children that live on forever. Petro's passion for inner peace has brought him to the like-minded conscious community of Bartley. *Engineer* Petro is not officially an Engineer but can, has and will engineer anything he puts his mind to.

What is a Rocket Mass Heater?
A Rocket Mass Heater is a super efficient wood fired heating system that has two main parts: Part One is the Rocket Stove consisting of the Feed Tube, Burn Tunnel and Heat riser, ideally made from Fire Brick and well insulated. Wood is fed into the feed tube and the flame and wood gases burn horizontally through the burn tunnel and are directed up the heat riser. This part is typically covered with an inverted 55Gal steel drum that acts like a wood stove radiating heat. Part Two is the Mass, hot exhaust gases from the rocket stove fire are ducted into a thermal battery for heat storage made of Masonry Materials including COB(sand+clay mixture), Stone, Urbanite or Bricks. All of the heat that would have gone up the chimney and wasted with a wood stove is saved and stored in the Mass of a Rocket Mass Heater. The heated up Mass can radiate heat for up to 48hrs or longer after the fire is out. When a RMH is compared to a high efficiency wood stove, one can use 50% to 90% less wood in a typical heating system and achieve the same heating requirements – this is why we call a RMH super-efficient. Rocket Mass and Masonry heaters put Oil, Gas and Electric heating systems to shame in terms of efficiency and environmental consciousness and have since the 1400's, the key of course is finding a good source of wood. Good thing we live in Canada and have an unlimited renewable resource called the Boreal Forest, which when responsibly harvested, and combined with utilizing waste wood stream sources, can provide clean super efficient heating for every home and building across the country.
Mass or Masonry Heaters have been around for at least 5000 years where excavations have found exhaust gases from kitchen stove fires directed underneath the home or bedroom floors. In Rome this was called a Hypocaust, In China it was called a Kang stove and the Korean Ondol. Most cultures utilized the hot exhaust gases and built homes and places of cooking, healing and rest around the fire. Recently and documented since the early 1400's, Masonry Heaters were the primary heating systems in most of Eastern Europe and Scandinavia. Today, in North America, Mass Heaters are rapidly picking up pace as heating costs and related environmental damages skyrocket. Since the 2006 Publication of the Book titled 'Rocket Mass Heaters: Super-efficient wood stoves that you can build and snuggle up to' Wood heating supporters and tinker's from all over the world have been building and experimenting with their own rocket stoves and have been exchanging ideas through online forums like and Donkey Pro Boards.

What topics will the workshop cover, what will I learn?
Topics include: Rocket Mass Heaters, Pre-Cast Refractory Cores, History of Masonry Heaters, Wood Gasification, Wood Pellet Combustion, Fire Sciences, Cast Refractory Materials, Thermodynamics, Hydronics and Plumbing, Masonry, COB.
The workshop will have a 'classroom' component; Q & A period.
The primary goal of the workshop is to design and construct a Rocket Mass Heater that will perform three primary functions: Space Heating, Cooking Surface, Baking/Food dehydration. During this real-time build, You (the workshop participant) will help build the system. This is a hands on workshop and You will have an opportunity to work with laying firebrick, making and applying high temp mortar, laying out the combustion core and barrel, building the manifold with cleanouts and bypass damper, constructing the thermal mass battery, using hand and power tools, being a part of a step-by-step Rocket Mass Heater build, and all of your 'Burning Questions' will be answered.
We will be covering all the basics and looking at materials and designs for using a Rocket Mass Heater to transfer heat from wood combustion to water using copper or stainless steel coils.

Who is this workshop for?

This workshop is for folks from all ages and walks of life who want to learn about Rocket Mass Heaters, and who want be a part of a co-creative building process. You will meet really cool and interesting people and eat amazing food. In past workshops we have seen homeowners, farmers, greenhouse growers, natural builders and people who care about the environment that see Rocket Mass Heaters as an important tool for off and on-grid living and to help curb greenhouse gas emissions.

According to Alfred Faber [a German historian of heating technology], the great innovations in stove design during [the period in which masonry heaters were developed] seldom came from specialists in the field.... "Homeowners," Faber found, "often experimented for years on their own stoves to reduce wood consumption. Their discoveries have appeared in hundreds of reports, books and journals. Among them almost all professions are represented: government officials, priests, monks, doctors, pharmacists, mathematicians, professors of all fields, but also painters, architects, merchants, manufacturers, diplomats, military men..."[from Alfred Fabre, 1000 Jahre Werdegang von Herd und Ofen, Abhandlungen und Berichte, Vol. 18, Deutsches Museum, Munich, 1950.]
....Once the idea of baffels and smoke passages got about, many experimented with them and in ways of almost infinite variety....It is almost fair to say that if you can imagine a winding smoke path within it, then someone, at some time in the past, has already built it.

What tools will we use?

The multi-faceted workshop of the Bartley Eco-Village is well equipped for a Rocket Mass Heater Build. Tools for the build include but not limited to:
- 10Inch Wet Brick/Tile Saw , 14Inch Wet Chop Saw
- Power Tools (Angle Grinder, Drills, Reciprocating Saw, Portable Band Saw,
- Masonry Hand Tools (Cold Chisels, Mallet, Level, Trowel)
- A full arsenal of steel fabrication equipment including CNC Router.

Workshop Glossary of Terms - Terms you will learn!
Burn Tunnel, Heat Riser, Feed Tub, COB, Combustion Chamber, CORD, Convection
Conduction, Duct, Exhaust, Exhaust Flue, Heat Storage, HydroCarbon, Hypocaust, Kindling, Manifold, Pyrolysis, Refractory, Radiation, Specific Heat, Stack, Thermal Battery, Thermal Mass, Urbanite

Additional Features:
Learn the ins and outs of a Rocket Mass Heater system with Integrated Water Heating Coil
Learn how to make Clay-Crete (viscous COB) and forms.
Learn about a Wood Gasification Boiler made in the Czech Republic
Learn about Pellet Stove modifications for increased energy efficiency - i.e. Adapting Fresh Outside Air Intake.
Learn about a commercial buildings existing HVAC (Heating, Ventilation & Air Conditioning) system and how to identify and retrofit systems to clean wood heat technology.
Meet and greet all of the friendly folks at the Bartley Eco-Village and tour the 60,000sq/ft building, sprout operating, geo-desic dome and permaculture organic gardens.

Among all phenomena, it is really the only one to which there can be so definitely attributed the opposing values of good and evil. It shines in Paradise. It burns in Hell. It is gentleness and torture. It is cookery ad apocalypse. - Gaston Bachlard, The Psychoanalysis of Fire

Date: Saturday November 22nd and Sunday November 23rd 2014
Time: Sat – 9:00am-5:00pm , Sun 10:00am – 5:00pm
Location: 160 Bartley Drive, Toronto ON (Victoria Park & Eglington)
Tuition: $200.00 (Register Online @
Lunches: Snacks, Beverages and Vegetarian Lunch Provided (Made with Love). Contact Chef Jenny G if you have any food allergies or special dietary restrictions.
Saturday Potluck Dinner: Bring a dish or dessert to share for Saturday dinner!
More Information Contact:
Register @
Bartley Building Co-coordinator – Frank -

What to bring?
Work Boots, Safety Glasses, Ear Plugs or Head Phones, Dust Mask, work gloves.
Bring a change of clothes!
Bring a Mug, Bowl, fork, spoon, chop sticks for lunch and beverages.
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What interested me about this post was the Wood Gasification Boiler made in the Czech Republic - do you know any people related to this country? I'm looking to visit them or invite them to visit...

I'd appreciate asking them and they can have a look at the links in my signature for a taste of what I'm into... click below
Forget Steve. Look at this tiny ad:
A rocket mass heater is the most sustainable way to heat a conventional home
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