This is an April 2016 Blog Post on how we built a Thermal Mass Rocket Stove at Jordan Rubin’s ‘Heal the Planet Farm‘.
(We cover the foundations of rocket stove building at every Permaculture Design Certificate (PDC) course we host.)Schedule of Upcoming Courses
We call it the Epic Greenhouse Rocket-Mass Heater because of it’s sheer size and multiple modifications we designed into it. The whole stove is built around an 8″ flue system that exits outside of the greenhouse below floor level, under the greenhouse end-wall, and then turns towards the sky.
Designed by Bill Wilson (MWP) and Kevin Kepplinger (HTP Farm) Construction and Design Assistance from Heal the Planet Farm Team (All are Midwest Permaculture PDC graduates)
The key modifications we made to this stove that are not usually found on more traditional rocket mass heaters are:
The feed chamber is very large capable of holding full-sized firewood logs so it can be loaded to burn for up to 4 hours at a time and produce a lot of heat.
The thermal battery or thermal mass is below grade and insulated so the heat will not wick into the soil surrounding it but instead radiate up to keep fish (aquaponics system) and bedding plants warm even in the dead of winter.
We installed a multiple-speed flue fan and a flue damper near the end of the exhaust pipe to give ourselves greater control over the speed of the exhaust and even the burn. We can slow the exhaust down to hold the heat in the thermal mass longer when it’s hot or speed it up when we need a stronger pull to get it started. We know this is unorthodox and a bit like cheating, but it’s very helpful and the fan is variable speed using very little electricity.
Dripping water slowly on to the clay model clearly shows how rain water can be moved around a landscape and held to rehydrate the soil.
As permaculture teachers, we have landed on this simple clay-model demonstration as an excellent tool for explaining earthworks. We can cover how swales, ponds, key points and key lines all fit together. The appreciative response from our students continually confirms this.
We are making early progress on our 320-acre Missouri permaculture-farm project (Jordan Rubin’s Heal the Planet Farm). Last fall, a local dozer operator was brought in to dig the first swales. It was a small dozer but it did a respectable job and did the work in a relatively short period of time compared to an excavator. See the blog post with video here.
Before we brought the dozer back in this spring, Kevin, a long-time farmer in the area who is also Jordan’s lead farmer on this project, suggested that we simply try the 135hp farm tractor with it’s 9-foot tilting scraper blade (it’s just over 6′ wide when fully angled at 45 degrees) to see what kind of swales it would cut. It certainly seemed worth trying though I’d never seen it done before.
Adam and I headed out early one morning with the laser level and marked off about a mile of swales with white-wire flags. When Kevin arrived later in the morning with the tractor all he had to do was adjust the angle of the blade, drop it down, and start running. He ran three passes on every swale we had marked and did it all in about 60 minutes!Continue reading “Rapidly-Cut Swales with Tractor Blade”
Click on Image to View the Full Size (10MB) Feel free to download, forward, print or share with others. It’s really interesting.
As part of the full design for Jordan Rubin’s Heal the Planet Farm in Koshkonong, MO, we will be creating a demonstration food-forest walk consisting of 6-distinct plant guilds, all designed by Midwest Permaculture’s official plant guy and co-author of Integrated Forest Gardening, Bryce Ruddock. We thought you might like to take a closer look at the final design sketch which was digitally crafted by our fellow teacher/designer, Milton Dixon.
The earthworks and tree planting are scheduled to happen either this fall or in spring of 2016. We’ll keep you posted.
Below is the overview image of where the guild fit into the larger Zone 1 area.
At the last minute this winter we decided to tap our mature maple tree (just one tap) and boil off some sap to make a small amount of maple syrup. I was equally interested in building an experimental rocket stove as an evaporator with the materials I had on hand. It worked great!
With some landscaping bricks, a dutch oven and a bit of home-made cob we had our stove chugging along in about an hour… maple syrup in 5 hours. 3+ gallons of sap made 1 cup. of syrup. Here are some pictures:
I built the stove by dry stacking (no mortar) the bricks to form a chimney and burn chamber. We nestled the dutch oven in to serve as the top of the burn chamber so it would receive direct flames for a hot, rapid boil.
We have been invited by a family in Southern Missouri to assist with the design of a 320-acre farm. They want to transition the land into a permaculture landscape capable of producing a wide range of perennial foods (nuts, vegetables, herbs, fruit, etc.) as well as livestock (beef and goats).
Over generations, rain has slowly degraded this sloping landscape with a loss of nutrients and topsoil. It is not uncommon for a million gallons of water to wash off this landscape with a 1-inch rain. Continue reading “Bulldozer Digging Swales”
Hayden Wilson and Bethany Gardner of Midwest Permaculture
Hi Friends of Midwest Permaculture.
Bill, Ernest, Hayden and I ( Bethany) are at our farming PDC course here at Fox Hollow Farm in Ohio. Bill is doing most of the teaching while the three of us support the delivery of the course along with the Rickard family (the farmers) and staff.
Bill asked me and Hayden to make a brief photo-log of the course and to drop the pictures here into a single blog post.
We’ll break it down into daily selections which we hope will give you an idea of what happens at a typical PDC course along with the unique aspects of this wonderful farming course. We’re having a great time.
Hope you enjoy…. Bethany
On day 1 we toured the farm meeting one of the Rickards horses, Polly. It is a halflinger breed used to pull logs and other heavy items around the farm.
Over the last 7-plus years, Becky and I and our Midwest Permaculture team have hosted 49 PDC Courses. Course #49 graduated today (July 13, 2014) and with it our 1000th student earned their PDC Certificate.
Midwest Permaculture Course #49 — Students Posing on the Hugelkultured Swale They Built — There were people in their 20’s, 30’s, 40’s, 50’s and 60’s. Permaculture is appealing to many regardless of political, racial, religious or socioeconomic differences.
As most of you know, Midwest Permaculture was started on a shoestring with the belief that permaculture was an ethical-based design tool that could be applied to most challenges facing us in the 21st century. We felt that this brilliant approach to creating security and abundance on our planet needed to be shared with the larger culture. Continue reading “1000+ PDC Graduates”
An 8-day Completion Training Immediately Follows just 3 Hours down the Road June 23-30, 2014
Register for the Prescott, WI, PDC Course and receive the webinar series now so you can prepare for the course ahead of time. You can still enjoy the live presentations at the MREA as part of your training free.
I am very much looking forward to teaching this upcoming PDC with fellow permaculture designers/farmers, Josh and Brian Shultz. Both are Midwest Permaculture PDC Graduates but had been doing advanced permaculture work long before that.
While there, we will learn about the work they are doing on behalf of the environment and how they are teaching ‘care of earth’ to school students and the general public. The people at PCCI are walking the talk every day. We will be in great hands and at a great location for this training.
Me (Bill) with Bloomingdale the cat.
And when it is time to get out of the classroom and learn by doing and seeing I will be taking everyone over to Josh and Brian’s combined endeavors, Fair Lake Farm and Cedar Creek Permaculture Farm (see picture summary below). They have both done amazing work in various fields and I know that as students, you will be learning a great deal by examining what they have accomplished and are planning to do.
To be clear, since this will be a PDC course I will be teaching the full PDC Curriculum including urban, suburban and residential permaculture applications. We will be looking at how to design for various climates and for unusual circumstances.
Students will also be invited to bring their own design projects for we will set aside an entire evening to do nothing but explore the real-life design challenges of those who have a specific project. Not everyone will or is expected to bring a project but we will all learn by exploring those projects that are brought to the table. This is going to be a fabulous training and I am looking forward to meeting many new permaculture minds and hearts.