Cob is an amazing material – once it dries, it turns into a rock-solid structure that holds everything together, providing both strength and durability.
We take a closer look at how cob works its magic in rocket mass heaters. From starting as a water-soluble clay to becoming a solid rock, cob plays a crucial role in locking everything into place. We’ll show you how we apply it, rub it into a soup of clay to make it stick, and use it to hold everything, from the barrel lid to the heater structure, securely together.
Here’s what we’ll cover:
• How cob transforms into a strong, solid material
• Why properly applying cob makes all the difference in strength
• Locking the cob into place for long-lasting stability
• Aesthetic improvements after the functional build
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