While it is to me very interesting to read the pros and cons in favor of steam or hot water heating, I venture to give my " How to Clean a Common Flue." In one house I heat with a flue. It is made in the best manner, is over 70 feet long and has 14-inch square tiles on top, lapped in grooves. To clean it without taking off every ten feet or so, was of some consideration to me. Well, I take off one tile, say about 7 or 8 feet from the fireplace, also one next to the bend or entrance of the chimney. Then I get a cat, take a ball of cotton twine, such as is used for tying up flowers, fasten one end to one of pussy's hind legs, introduce her in one of the openings, and by kind persuasion make her creep through the flue, playing out twine as quick as she goes. If she stops on the way, a gentle pull will soon set her in motion; watch for pussy on the other end, relieve her; then fasten a rope or strong garden line to the twine and draw it through. Get old bags, tie up in as big a bundle as will conveniently go through your flue and keep at see-sawing - so to speak - until your flue is clean.