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WOFATI, an innovative sustainable building technique coined by permaculture advocate Paul Wheaton, stands for Woodland Oehler Freaky-cheap Annualized Thermal Inertia. The design utilizes readily available natural materials like wood and earth to create a "soil on wood" structure that harmonizes with the surrounding woodland. The "freaky-cheap" construction methods pioneered by Mike Oehler and further developed by Wheaton significantly reduce building costs. WOFATI structures are characterized by a double layer of membrane, a "two-skin" system that encapsulates the earthen roof, ensuring dryness and longevity. The principle of Annualized Thermal Inertia is key, using the earth's mass to regulate temperature, providing passive heating in winter and cooling in summer. WOFATI houses feature large windows on the uphill side for optimal passive solar gain, while the downhill side typically boasts a large gable roof, also incorporating glazing for natural light penetration. Allerton Abbey, located at Wheaton Labs, serves as a prime example of a WOFATI house
The SKIP (Skills to Inherit Property) program, designed to connect aspiring homesteaders ("Skippers") with landowners seeking successors ("Otisies"), centers around the completion of practical projects called "Badge Bits" (BBs). To join, create a free account on permies.com and choose BBs from the PEP (Permaculture Experience according to Paul) curriculum. These BBs, encompassing skills like gardening and natural building, are documented through photos and videos, which are then reviewed by the permies.com community. As Skippers complete BBs, they earn progressively advanced badges — Sand, Straw, Wood, and Iron — showcasing their skills to potential Otisies. While the program is free, attending the annual SKIP event at Wheaton Labs, where BBs are taught, costs $2,250. The permies.com forums also play a vital role, providing a platform for Skippers to connect and share experiences.
The willow feeder system is a permaculture solution for managing human waste, developed by Paul Wheaton, that prioritizes safety, sustainability, and nutrient cycling. It is designed to be a "freaky-cheap" alternative to conventional septic systems and sewage treatment plants, utilizing readily available materials like garbage cans and sawdust. The system focuses on mummifying human waste in a dry environment within sealed garbage cans to prevent composting and the escape of pathogens. This dry environment also stops the loss of valuable carbon and nitrogen to the atmosphere, which is a common issue with hot composting. After two years of aging in the sealed cans, the resulting "willow candy" is pathogen-free and can be safely applied as fertilizer. While this nutrient-rich material could be used on any garden, it is best suited for "poop beasts" like willow, cottonwood, poplar, and bamboo, which can readily absorb the high nutrient content without harm. This system promotes a closed-loop approach, turning what is often considered waste into a valuable resource for growing beneficial plants.
Hugelkultur, is a permaculture technique that utilizes buried wood to create raised garden beds. This method can be implemented on a small scale in backyards or on a large scale, covering areas up to a kilometer in length. Hugelkultur beds are constructed by layering logs, branches, twigs, and even whole trees and covering them with soil. Over time, the decomposing wood acts "like a sponge to hold water," reducing the need for irrigation and attracting beneficial microorganisms. This decomposition also creates "parking spaces" for water and nutrients, improving soil fertility and aeration. Using hugelkultur reduces or eliminates the need for fertilization, as the rotting wood provides nutrients. The self-tilling nature of hugelkultur is enhanced as the wood shrinks, creating air pockets over time.
The lorena is a unique cooktop design created to optimize the performance of rocket stoves. This specialized cooktop features a metal plate with a central hole that sits directly above the rocket stove's burn chamber, allowing for direct heat transfer to large pots. The surrounding metal plate serves as an additional cooking surface, similar to the glass cooktop used at Allerton Abbey, offering flexibility for a range of cooking tasks. This design aims to maximize heat utilization from the rocket stove, promoting energy efficiency and faster cooking times. When a large pot is heated to the desired temperature, it can be moved to the surrounding cooktop, and the central hole can be covered with a piece of metal to retain heat. Proposed implementations often include integrating the lorena into an outdoor kitchen setting for added practicality. The lorena embodies the ongoing innovation within rocket stove technology, striving for better heat transfer and improved cooking performance.