Nick Kendall

Thanks for clearing that up for me

Thanks
Mind why does the box get insulated?  I had thought riser was insulated

This is the same type of thing I am very interested it  maybe someone has some pics or experience trying this
Have do you have a heater to start with?

Do you have any pics    This seems it would be easier  for me to modify a heater like this that has a nice door and latch setup   Vs starting from scratch as I want a nice door latch setup and want bigger then just using a 6 “ design and I want to turn it into rocket stove  like the first one in this post

I am new to this but really like the idea you have using old stove as batch box had anyone else done this?  I would like to try this but would insulate the riser as well