We are working on moulded ceramic insulation but those efforts are not yet worthy of a picture. To date we have used Cerawool Blanket, ceramic hardboard, and aluminized high temperature fiberglass. The process is tedious because of the numerous cuts (not all on the insulation) and the challenge to fitting the material to such a "curvy" object.
The unit pictured below has been working 8 hours at 250°C nearly everyday. The version, not using the Curved Inlet, is nearly two years old but is used more lightly, though at the same temperature. A third unit has been used for testing purposes but will soon be used on a nearly daily basis.
A new Inlet Flex Connector has been fabricated and it will soon be tested. The aim is keep the sound level as low as possible. We have had a measure of success in accomplishing that. Last week CBC Radio aired an interview that was done just in front of the working Roastaire. Obviously more improvements will be implemented to make the work area as pleasant as possible.
