by Erica and Ernie Wisner is a technical manual for constructing ultra-efficient earthen masonry heating systems. These systems can heat a home using 70–90% less wood than a traditional woodstove by capturing exhaust heat in a thermal mass, such as a cob bench, which radiates warmth for 12–24 hours after the fire is out. Core Principles & Design
Includes firing practices to establish a draft and maintenance schedules for ash removal and inspection. Practical Benefits The Rocket Mass Heater Builder’s Guide: Complet...
Hot exhaust gases are routed through long horizontal channels (often inside a bench) that absorb and store heat instead of letting it escape up the chimney. by Erica and Ernie Wisner is a technical
Guidance on using earthen materials like cob or masonry to create functional seating that acts as the primary heat sink. Practical Benefits Hot exhaust gases are routed through
The book provides detailed, step-by-step instructions across several phases:
The guide emphasizes the heater as an integrated system rather than just a stove. Its performance relies on a "rocket" combustion core that achieves complete, smoke-free burning through:
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