I think both forges and ovens should generate ash proportional to how long they remain lit. Something like 0.1 per 5 minutes would be nice, and especially nice if it would just be one item, growing in weight. Ash ql could be linked to log, oven/forge/fire ql, and firemaking skill but tbh people would probably like this for concrete more. Have a "clean" option via tool(shovel?) with the oven/forge/fire that uses a short timer to give you howevermuch ash should be given. (credit to Docterchese for this part in the original thread) I posted this a while back and got good feedback up to dev level but its archived now so I can't mega-necro it. http://forum.wurmonline.com/index.php?/topic/75119-have-forges-and-ovens-generate-ash/