Andrés Bernal

We overhauled the https://lowtechmovie.com/ page to now include low tech laboratory 2 and free heat! A lot of changes were made so it is practically a new page.

Any and all feedback is welcomed :)

Thank you!!!

Free Heat is a 2 hour and 18 minute film that explores the world of rocket mass heaters, a highly efficient and environmentally friendly type of wood-burning technology. The movie follows the experimentation and implementation by a team of experts working on various types of rockety contraptions. Viewers will see firsthand the innovative ways in which the rocket systems are being used and developed, and will learn about the many benefits of this technology. Whether for heating a home, cooking a meal, or creating a relaxing sauna experience, rocket mass heaters are a versatile and sustainable technology.




In the Free Heat 3D Plans Bundle you’ll fine step by step instructions on how to build:
- A pebble style 8 inch j-tube rocket mass heater
- A solar food dehydrator with rocket boost
- A coaxial heat exchanger
- The rocket cooktop with Lorena option
- The tiny house cob-style rocket mass heater
- The sauna rocket heater





Penned by Rocket Mass Heater authorities Paul Wheaton and Chris "Uncle Mud" McClellan and updated Summer, 2022, this eBook features a heap of information about heat risers - how to build one, what to use, how much to spend, how long it'll last.  All this info for the first time in one place! Pages: 22 - Format: PDF



Uncle Mud (aka Chris McClellan) raises free-range, organic children in suburban Ohio. He has been using natural building as his soapbox to preach self-reliance and community empowerment, since 2004. Building houses, pizza ovens, and woodstoves with mud and junk is his way of sharing the Can-Do spirit. He writes, teaches workshops and hosts a mud pit and DIY building demonstrations at Fairs across the US. unclemud.com

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In this in 1.5 hour webinar PLUS Q&A you will have the chance to learn with a professional rocket mass heater and cob building specialist who will walk you through step by step what you'll need to know in order to build an efficient greenhouse powered by a rocket mass heater.



This step by step 3D set of plans serves as a comprehensive guide for constructing a modular rocket heater, detailing the rocket engine component specifically. This innovative design was developed as part of the Low Tech Laboratory initiative and at the 2022 Permaculture technology Jamboree by the instructor Uncle Mud. Please note that the plans for additional modules, such as the kiln and rocket hot tub, are provided separately.

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This movie takes you on an educational journey into innovative heating solutions. We focus on three main projects:
Rebuilding a rocket mass heater in a library, creating a new batch box rocket heater for a workshop, and installing a 6-inch J-tube rocket mass heater in the red cabin.
Join us to see how these groundbreaking yet practical heating designs work. They're not just efficient, they're also very cost-effective.

Get the feature length Low Tech Lab Movie - a documentary about the 2022 Permaculture Technology Jamboree at Wheaton Labs - exploring innovative homesteading and permaculture projects, PLUS a bundle of 12 sets of 3D plans to make your own project creations from the event, the 65 low tech things - movie tour, Alan Booker's Spring Terrace Webinar and Beau Davidson´s Mycoinsulation Webinar: Grow-Your-Own Insulation While Farming Valuable Mushroom Crops.

This is an incredible bumper deal featuring a shed load of information to help you become more self-sufficient and resilient in your own backyard!

You can find out more here about the details of each item:

Low Tech Laboratory Movie - 1 hour and 52 mins

Low Tech Laboratory 3D Plans Bundle

65 Low Tech things - tour movie - 2 hours and 4 mins

Spring Terrace Recorded Webinar

Mycoinsulation Recorded Webinar

Get the feature length Low Tech Laboratory Movie, the Low Tech Laboratory 2 movie, the Free Heat movie, three bundles of step by step 3D plans, the 65 Low Tech Things movie tour, Alan Booker's Spring Terrace Webinar, and Beau Davidson’s Mycoinsulation Webinar: Grow-Your-Own Insulation While Farming Valuable Mushroom Crops.

This is an incredible bumper deal featuring a shed load of information to help you become more self-sufficient and resilient in your own backyard!


This bundle includes:

Low Tech Laboratory movie 1  (1 hour and 52 mins.)

Low Tech Laboratory movie 2  (1 hour and 38 mins.)

Free Heat Movie  (2 hours and 18 mins.)

65 Low Tech Things - movie tour  (2 hours and 4 mins.)

Low Tech Laboratory 1 - 3D Plans Bundle

Low Tech Laboratory 2 - 3D Plans Bundle

Free Heat Rocket Plans Bundle

Alan Booker’s Spring Terrace Recorded Webinar

Beau Davidson’s Mycoinsulation Recorded Webinar

Watch the best of the Permaculture Technology Jamboree, the Low Tech Laboratory sequel, and the Free Heat movie in one bundle. These movies showcase rocket mass heaters, rocket cooktops, rocket kilns, log furniture, roundwood construction, mycelium insulation, hugelkultur, spring terraces, log beehives, shaving horses, wool processing, natural building experiments, and many more practical low tech projects from Wheaton Labs.




Watch the movie that documents the 2022 Permaculture Technology Jamboree, where innovative designers, builders, tinkerers, bodgers, fixers, goofballs, and water-witchers came together to explore homesteading, permaculture, natural building, wood heat, food preservation, land design, and practical low tech systems.

Some of the things covered in this movie:

rocket kiln, rocket forge, and rocket hot tub

mycelium insulation and a mycelium insulated door

an all-wood Proenneke hinge

spinning wheel made from bicycle parts

log picnic table and shaving horse

hugelkultur and spring terrace

log beehives

simple solar pump

food preservation, apothecary, sheep shearing, wool processing, clay harvesting, pond sealing, and more

The sequel to the Low Tech Laboratory movie documents the 2023 Permaculture Technology Jamboree, with new builds, new experiments, and new practical artifacts from the Wheaton Labs community. This movie captures design, construction, testing, and instructor insight for a wide range of permaculture and homesteading projects.

Some of the things covered in this movie:

rocket engine, rocket forge, rocket hot tub, and rocket kiln experiments

moon gate made from stone

log picnic table 3.0 and giant log stairs

BOB, myco-insulated house, myco-insulated roof, root cellar, grape arbor, sawmilling, yurt, earthen floors, natural textiles, wool processing, sauna, ash cement, and more

Some call it "carbon neutral," others "carbon negative." Heat your home with yard waste and cardboard while reducing global problems. We call it free heat.

Rocket Mass Heaters are possibly one of the most powerful low tech solutions for people who want lower heating bills, greater comfort, and a cleaner way to heat a home. This movie gives viewers a front row seat to several rocket mass heater builds and other rockety contraptions.

Some of the things covered in this movie:

8 inch pebble style j-tube rocket mass heater

6 inch cob style j-tube rocket mass heater in a tiny house

Lorena style rocket cooktop

rocket sauna heater

solar food dehydrator with rocket assist

Liberator and Gamera commercial rocket heater installations

RMH design, safety, function, maintenance, 5-minute riser, juice box stratification, and rocket kiln/forge experiments

A tour of dozens of low tech ideas, systems, and practical homesteading experiments. This movie adds even more inspiration and context for people who want to see a broad range of low tech possibilities in action.




Get the plans from the 2022 Permaculture Technology Jamboree, the 2023 Low Tech Laboratory sequel, and the Free Heat rocket plans in one handy bundle. These step by step 3D plans cover natural building, rocket heat, roundwood construction, mycelium insulation, hugelkultur, spring terraces, log beehives, log furniture, stonework, passive shade, and more.




Buy a bundle of plans to DIY the projects from the 2022 PTJ, the Permaculture Technology Jamboree held at Wheaton Labs. This low tech event brings together creatives and professionals annually to experiment and innovate in the name of permaculture.

The bundle consists of:

rocket engine plans

rocket hot tub plans

log picnic table plans v1.0

log picnic table plans v2.0

shaving horse plans

spinning wheel made from bicycle parts plans

mycelium insulated door plans

horizontal log beehive plans

vertical log beehive plans

rocket kiln plans

hugelkultur plans

spring terrace / humus well plans

Get 5 incredible 3D building plans from Wheaton Labs’ Low Tech Laboratory 2, featuring sustainable, natural construction techniques. These detailed plans were developed during the Permaculture Technology Jamboree 2023, guiding you step by step through innovative builds using natural materials and time-tested craftsmanship.

The bundle consists of:

Myco-Insulated Pump House, a naturally insulated, earth-sheltered pump house using mycelium insulation, roundwood joinery, and passive earthworks

BOB, a dynamic shading system built from logs, cables, and pulleys to create adaptable passive cooling

Log Picnic Table 3.0, a massive pure wood picnic table assembled without screws, nails, or glue

Giant Log Stairs, heavy-duty log stairs made with traditional woodworking techniques and large hardwood dowels

Moon Gate, a dry-stack stone archway built with gravity, careful fitting, and zero mortar

Each plan includes 3D renders and illustrations, complete material lists, tools, detailed instructions, and insights from expert builders at Wheaton Labs.




Get the step by step 3D plans for the rocket heater and rocket heat projects from the Free Heat movie. These plans show practical, efficient, wood-fueled heating systems and rocket-powered projects that can help heat homes, cook food, dry food, heat a sauna, and explore efficient heat exchange.

The bundle consists of:

Pebble Style Rocket Mass Heater plans

Solar Food Dehydrator with Rocket Assist plans

Rocket Cooktop with Lorena Option plans

Sauna Rocket Heater plans

Coaxial Heat Exchanger plans

Tiny House Cob Style Rocket Mass Heater plans

This bundle also includes Alan Booker’s Spring Terrace Recorded Webinar and Beau Davidson’s Mycoinsulation Recorded Webinar.

Spring Terrace Recorded Webinar

Learn about spring terrace concepts, water harvesting, and how land shaping can help collect and reveal water in the landscape.

Mycoinsulation Recorded Webinar

Learn how mycelium insulation can be grown from natural materials while also farming valuable mushroom crops.

Low Tech Laboratory 2 - 5, 3D Plans Bundle



Get 5 incredible 3D building plans from Wheaton Labs’ Low Tech Laboratory 2, featuring sustainable, natural construction techniques. These detailed plans, developed during the Permaculture Technology Jamboree 2023, total 199 pages, guiding you step by step through innovative builds using natural materials and time-tested craftsmanship.

What’s Included:

🔹 Myco-Insulated Pump House (44 pages)  
- Instructor: Beau Davidson  
- A naturally insulated, earth-sheltered pump house that uses mycelium insulation, roundwood joinery, and passive earthworks to keep well pumps from freezing in cold climates.

🔹 BOB: The Log That Sways and Shades (50 pages)  
- Instructor: Stephen B. Thomas  
- A dynamic shading system built from logs, cables, and pulleys to create adaptable, passive cooling for outdoor spaces—no electricity required.

🔹 Log Picnic Table 3.0 (32 pages)  
- Instructors: Kyle Alister & Paul Wheaton  
- A massive, pure wood picnic table using precise joinery—assembled without screws, nails, or glue for strength and beauty.

🔹 Giant Log Stairs (35 pages)  
- Instructors: Mike Haasl & Paul Wheaton  
- Heavy-duty log stairs constructed with traditional woodworking techniques, featuring large hardwood dowels and metal-free joinery.

🔹 Moon Gate (40 pages)  
- Instructor: Tim Lanese  
- A stunning dry-stack stone archway, relying on gravity and precise fitting—built with zero mortar or reinforcements.

Each plan includes:  
✅ 3D renders and illustrations for step-by-step clarity  
✅ Complete material lists and tools  
✅ Detailed instructions for natural building techniques  
✅ Insights from expert builders at Wheaton Labs  

🔹 Get all 201 pages of expert-level plans today! 🔹

Get the plans from the 2022 Permaculture Technology Jamboree, the 2023 Low Tech Laboratory sequel, and the Free Heat rocket plans in one handy bundle. These step by step 3D plans cover natural building, rocket heat, roundwood construction, mycelium insulation, hugelkultur, spring terraces, log beehives, log furniture, stonework, passive shade, and more.




Buy a bundle of plans to DIY the projects from the 2022 PTJ, the Permaculture Technology Jamboree held at Wheaton Labs. This low tech event brings together creatives and professionals annually to experiment and innovate in the name of permaculture.

The bundle consists of:

rocket engine plans

rocket hot tub plans

log picnic table plans v1.0

log picnic table plans v2.0

shaving horse plans

spinning wheel made from bicycle parts plans

mycelium insulated door plans

horizontal log beehive plans

vertical log beehive plans

rocket kiln plans

hugelkultur plans

spring terrace / humus well plans

Get 5 incredible 3D building plans from Wheaton Labs’ Low Tech Laboratory 2, featuring sustainable, natural construction techniques. These detailed plans were developed during the Permaculture Technology Jamboree 2023, guiding you step by step through innovative builds using natural materials and time-tested craftsmanship.

The bundle consists of:

Myco-Insulated Pump House, a naturally insulated, earth-sheltered pump house using mycelium insulation, roundwood joinery, and passive earthworks

BOB, a dynamic shading system built from logs, cables, and pulleys to create adaptable passive cooling

Log Picnic Table 3.0, a massive pure wood picnic table assembled without screws, nails, or glue

Giant Log Stairs, heavy-duty log stairs made with traditional woodworking techniques and large hardwood dowels

Moon Gate, a dry-stack stone archway built with gravity, careful fitting, and zero mortar

Each plan includes 3D renders and illustrations, complete material lists, tools, detailed instructions, and insights from expert builders at Wheaton Labs.




Get the step by step 3D plans for the rocket heater and rocket heat projects from the Free Heat movie. These plans show practical, efficient, wood-fueled heating systems and rocket-powered projects that can help heat homes, cook food, dry food, heat a sauna, and explore efficient heat exchange.

The bundle consists of:

Pebble Style Rocket Mass Heater plans

Solar Food Dehydrator with Rocket Assist plans

Rocket Cooktop with Lorena Option plans

Sauna Rocket Heater plans

Coaxial Heat Exchanger plans

Tiny House Cob Style Rocket Mass Heater plans

- .pdf
- Step by step 3D plans
- 159 pages

Click here to watch the Free Heat Movie

Buy a bundle of plans to DIY the projects from the 2022 PTJ (Permaculture Technology Jamboree) held at Wheaton Labs. This low tech event brings together a bunch of creatives and professionals annually to experiment and innovate in the name of permaculture!  The 2022 event was made into a movie that you can buy here to see the plans brought to life, learn more about each project and the instructors that taught at the PTJ.


As a result of the 2022 event, plans were made so that you can make your own creations. Buy them all here in one handy bundle!

The bundle consists of:

rocket engine plans

rocket hot tub plans

log picnic table plans v1.0

log picnic table plans v2.0

shaving horse plans

spinning wheel made from bicycle parts plans

mycelium insulated door plans

horizontal log beehive plans

vertical log beehive plans

rocket kiln plans

hugelkultur plans

spring terrace / humus well plans

Buy the accompanying movie here.

Buy the movie and 3D plans combo here (special deal).