Forces extremely hot, clean combustion by keeping temperatures high enough to burn off soot and creosote.
The book provides detailed, step-by-step instructions across several phases:
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 The Rocket Mass Heater Builder’s Guide: Complet...
Instructions for assembling the feed system, burn tunnel, and riser with heat-tolerant refractory materials.
The system relies on a strong internal draft created by the temperature difference between the hot riser and the cooling exhaust in the mass. Key Building Sections Core Principles & Design Instructions for assembling the
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.
Guidance on using earthen materials like cob or masonry to create functional seating that acts as the primary heat sink. Guidance on using earthen materials like cob or
Includes firing practices to establish a draft and maintenance schedules for ash removal and inspection. Practical Benefits