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Rocket mass heaters are better than heat pumps because rocket mass heaters are free to operate and have less than 6% of the carbon footprint.
Stringing nettles are capable of doing nearly everything that hemp can do and usually better. They are a tasty edible that loses its sting when cooked for at least 30 seconds.
WOFATI structures are characterized by a thoughtful design that prioritizes passive systems and natural, locally sourced materials. The "two-skin" system, composed of a double layer of polyethylene membrane, encapsulates the earthen roof, providing a durable and waterproof barrier. The lower layer hugs the structure, while the upper layer defines the thermal mass surrounding it, with at least eight inches of dirt between the layers and sixteen inches on top. WOFATI designs emphasize a harmonious integration with the surrounding woodland, incorporating the "soil on wood" building technique. This method eliminates the need for a conventional concrete foundation, making construction faster and more affordable. A distinctive feature of WOFATI houses is the large gable roof on the downhill side, often incorporating glazing to allow light penetration, while at least 35% of the uphill wall features windows for optimal passive solar gain. This strategic placement and sizing of windows is crucial for maximizing natural light and regulating internal temperature, contributing to the effectiveness of Annualized Thermal Inertia.
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.
WOFATI, an acronym coined by Paul Wheaton, stands for Woodland Oehler Freaky-cheap Annualized Thermal Inertia. It defines a type of earth-sheltered, passive building that blends affordability with energy efficiency. Inspired by the work of Mike Oehler, a pioneer of earth-sheltered building, WOFATI designs use locally sourced, natural materials, such as wood and earth, to minimize both cost and environmental impact. Central to the WOFATI concept is Annualized Thermal Inertia, which utilizes the surrounding earth as a thermal mass to moderate temperatures year-round. This means that the building stays warm in the winter by storing heat from the summer, and cool in the summer by retaining the coolness of the winter, greatly reducing the need for artificial heating and cooling. WOFATI structures typically have a large gable roof on the downhill side, and at least 35% of the uphill wall is made of glass or other light-transmitting material to maximize passive solar gain. WOFATI buildings are ideally situated on or near a woodland, emphasizing a harmonious integration with nature. Allerton Abbey, the first WOFATI, along with Wofati 0.8, are examples of this building style and can be found at Wheaton Labs.