179: Penn Parmenter on Passive Solar Greenhouses
179: Penn Parmenter on Passive Solar Greenhouses. Designing greenhouses using the natural laws of nature as allies and resources. – – – – Since 1992 Penn and her husband Cord…
The Urban Farm
179: Penn Parmenter on Passive Solar Greenhouses. Designing greenhouses using the natural laws of nature as allies and resources. – – – – Since 1992 Penn and her husband Cord…