A while back, I came up with an idea for a multi-use forge based on the pierced-plate style on grate. The grate area would vary depending on what position the plate was in, completely back was a 3"x3" hole pattern, expanding to a 3"x24" pattern when pulled completely forward. This would allow for small fires for normal usage, then increasingly larger fires based on the need. It would only require 1 forge and 1 chimney. The fuel would be coal.
Never got around to making one yet.....
