Kiko Denzer. After taking a 10-day cob workshop with Cob Cottage Company, Kiko started building mud ovens, which are about the simplest form of mass heater. That, combined with the sculptural possibilities of mud, turned into a major occupation that spawned a couple of books (Build Your Own Earth Oven and Dig Your Hands in the Dirt). Kiko has spent years teaching workshops on earthen ovens, stoves, building, and art—and building his own Rocket-heated cottage, cabin, and shop! Kiko doesn’t call himself a professional builder but is proud to claim that he is the world’s foremost expert on his life, which works pretty well and stays reasonably comfortable year-round without requiring too much wood (or too many sweaters)!
Kiko’s on the web at www.handprintpress.com/kiko.

Kiko is a Teacher. Everything he touches turns to gold. His plaster work, his wood carving. He’s even been making instruments lately! My favorite of his instructional videos is this silent movie in which he constructs the heater hat, pictured here, one layer at a time: http://www.handprintpress.com/authors/increase-wood-stove-efficiency-construction-details-videos/ .