green building

David W. Allan’s Solar Home

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David Allan's solar home in Utah, which has no furnace, has stayed adequately warm all winter for two decades.
David Allan’s solar home in Utah, which has no furnace, has stayed adequately warm all winter for two decades.

“Located in the cooler central Utah climate at 6,000 foot elevation, the Allan’s solar home integrates at least ten different forms of solar, including: trombe wall, solarium convection, photovoltaic cells, propylene-glycol heat exchange, eutectic salt chamber, berm insulation, black chimneys and under-ground intake for passive solar air conditioning, and dehydration of food.”

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Cordwood House Plan

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This cordwood house could be built with earthbags, straw bales or other sustainable materials.
This cordwood house could be built with earthbags, straw bales or other sustainable materials.

Specifications: 776 sq. ft. interior, 2 bedroom, 1 bath, Footprint: 30′ x 35′

Description: This simple yet practical home plan is shown with cordwood walls. The same house can be made with earthbags, straw bales, adobe, stone and other materials.

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