@@fZionists78That would just about heat up a broom cupboard. Most of the heat is going out of the chimney. A hotplate at 170 degrees celcius is not hot at all. In the winter two of my electric stoves hotplates at 300 degrees makes no difference hardly to the temperature of my home. That is far less heat so is inefficient.
I wonder if drilling a few holes would improve the burn or just limit the duration. Very interesting idea. Certainly a little fuel cuts more wood which is far more efficient. But for those in a bind, such as no dry wood, this could keep you warm. And the warm bricks could be put into sleeping bags or used to cook on. Awesome video.
brick but which type of brick? There are 3 types of brick: surface, sedimantery and fire. Fire found at deepest level of brick and it's infrastructure nearly pure hydrated aluminaslicate (Al2O3.SiO2.H2O) so brick after burning process loses it's water chemical attached but due to shrinkage and swelling, producers of bricks company adding sand clay for it. So if you burn a fire brick, probably due to high silicate amount from sand and clay, vitrification stage will start at 1000-1200 degree but before that any absorbed water from air up to 200 degree evoprotate, at 400 degree chemical left water. at 600 degree this alumina could start oxidation but for that, silica and alumina will disintegrate, it means brick will burn or destroy to it's structural chemical parts but we can see at production same process, the bonds are really strong and up to 1000-1200 degree doesn't disconnect each other so brick will be solid up to 1000 degree to 1200 and glassify or vitrificate but decompose after that degree and will crack down. before 1000 degree losing itself chemical waters and unequal fire connection, can definately strength of brick decase.
