[Cob] Re: My cob oven

[Amanda Peck]

Good idea to make it a chimney through the roof.   Sparks might be a worse 
problem than heat.

Georgie wrote (snipped):

I had planned to put the chimney out through the roof; do you think that 
would be a problem? I'd buffer it with cob, build the chimney a little 
higher to clear the roof, and then make a green roof. BTW, my husband stuck 
his hand over the chimney when the fire was going full blast, and he said it 
wasn't really that hot! Amazing how the oven must be sucking up the heat.