Episode 32 Erica Wisner On Rocket Mass Heaters, Her New Book, Fire Sense & Life
Mar 11, 2016•2 hr 4 min
Episode description
Keep up with the Wisners here: http://www.ernieanderica.info
The Rocket Mass Heaters Builder's Guide: http://www.newsociety.com/Books/R/The-Rocket-Mass-Heater-Builder-s-Guide