A little more progress on the no-weld gasifier. The centrifugal fan has been put on top of the hopper. Originally it was going to force air through the side, into the combustion (middle) chamber, but that would have required a stand to hold what is a very heavy fan.
On the table, to the right of the fan, you can see the variable mains supply that was built. This allows the speed of the fan to be altered for the correct amount of air throughput.
The fan will be bolted in place and some gasket material placed between it and the lid. A test firing is not too distant into the future.
A transition tube was added to the centrifugal fan, as can be seen in the image below.
The documentation for this project needs updating and will be carried out soon.