When I picked up this lantern up the perforated screen in the burner was burnt out. Austramax 3/300 Lantern (Late Model) The burner (nozzle) is a single piece with a pressed steel screen. They’re not designed to be repaired. But I thought I’d give it ago. Pushed the old screen out from the back and flattened it out to get the correct size. 21-22mm dia Hole size - 1.4mm Distance between holes - 1.0mm Looked around the shed and found a piece of perforated steel that looked suitable. I think it use to be a speaker cover. Cut a piece out using a 25mm hole saw. Making a 22mm dia circle I needed to form it into a convex that reduced the outside diameter enough to fit into the burner opening. Found the end off a curtain rod that had a nice round end and a cap off an old universal joint that were about the right size. Using a press I formed the new convex screen. I used a press because I have one and it gives more control but it could be done with a hammer. Now I needed to spread it out and swage it into the burner. To achieve this I ground a lip onto a steel rod. The rod was inserted into the burner under the screen and used as an anvil. By slowly working my way around the edges of the screen with a small hammer I was able to spread the screen out and swage it into the burner. Testing the repaired burner.