Thursday, 5 July 2012
Mark College Cob Oven
Three pictures showing day three of the complete package - the oven tempering day.
We burnt out the cardboard former used to support the chimney while the clay was wet. This shows a good rainproof roof as well as a good waterproof plinth, both essential to any cob structure be it a house or a wee little oven. It also shows how cob is immensely fire proof and able to sustain huge thermal shock despite not being included in permitted materials under building regs since all the timber and straw houses of London burnt down in the Great Fire of London.
The pictures also show how a bowsaw, newspaper, axe and dry pine are used to prepare good fuel for the oven; a swift burning and well oxygenated fire make for efficient fuel usage, with maximum heat energy for minimum outlay.
burning out the cardboard former in the chimney
everything you need to make good fuel for an oven
smoke gets in youre eye