Although there are several vertical axis wind turbines listed on greenterrafirma’s page, the one built with 55 gallon drums was especially interesting to us. Although the spouse approval ...

and features four molded-in rings to secure standard 55 gallon drums during transportation. Underside rings for secure double stacking and complete flow through design. 4 way fork entry to facilitate ...

He first modeled two 55 gallon drums in CAD. The intersecting curve was then generated by the software, printed out on paper, and stenciled on the drum to be cut out with a jigsaw. [Joel’s ...

Insertion heaters contain heating elements that fit through standard bung openings ... refers to the drum size and number of drums that are accommodated by the heater. Standard drum sizes include: ...