I recently bought some flue pipe for the construction of my rocket stove and heated cob bed. I purchased it from a local hardware store, and I was very happy to learn that there is 60″ lengths of flue pipe for sale for roughly $11 each. Compared to the more common 24″ lengths, which are something like $6 a piece, the 60″ pipe is a bargain.
Since I will need over twenty feet of pipe in my cob bed, the longer pieces make much more sense to use. If you are planning to build a heated bench or bed, make sure to find some 60″ length flue pipe.
In the next week, I hope to get some firebricks from our neighbors at Sandhill Farm so that I can begin to build the actual stove.