I've got half a dozen carpentry and building books, I got FHB back to No 44, I've searched on line and I can NOT find anything on how to build a chimney chase. I can't get a building dept. to give me any info and they have to inspect it!! I know how to put in fire-stops, etc. it's the general construction. Does anyone have a source? I've just finished an attached patio and getting ready to put in a DIY kit masonry fireplace, with a metal flue. I'd appreciate any help I can get.