Learn more at permaculturevoices.com/138 Support the show at permaculturevoices.com/support Today I am talking with Erica Wisner, co-author of The Rocket Mass Heater Builder’s Guide.   She co-wrote the book with her husband Ernie, and combined they are a wealth of knowledge on RMH. They build them, they use them, they teach about them, and they innovate new designed.  They live the RMH lifestyle. On the surface I think RMH are a complex subject, and I really tried to break through that complexity in this one by getting to the core of the what, where why and how. At the end of this episode I think you will either be excited to learn more or saying, not for me.  Either way, we have done our job. Learn more at permaculturevoices.com/138 Support the show at permaculturevoices.com/support