Allen,
Been reading about rocketstoves til my eyes lose focus. Ordered Iantos book, not here yet, bought 50 fire brick and been trying to lay out the base for a 8in. stove for my 20X30 hoop greenhouse. What size should the burn chamber be? Going to use pea gravel for mass,has anyone placed Pex tubing in the mass for offsite heating? probably have a hundred more questions before I am finished. Thank in advance for any help. Fred