Mr. F, C. Moore, president of the Continental, has a most comprehensive article on “ The Construction of Slow-Burning Buildings ” in the Engineering Magazine for March. Mr. Moore states that, while it is possible by the exclusive use of iron and brick to construct a dwelling in which the owner may sleep complacently without anxiety as to fire, such construction is expensive, and there are few fireproof houses outside of the largest and wealthiest cities. The main thing to observe. he stales, is the proper construction of chimneys, fireplaces, furnaces, etc.; that probably 80 per cent of the Hues in dwellings in this country are unsafe, being only four inches or hall a brick thick. No fl>or timbers or other woodwork should come within eight inches of the inside of any smoke flue or within two inches of the outside of such flue. The statistics of fires show that more than 20 per cent, of those occurring in this country are due to defective flues. All hearths to fireplaces, he states, should be supported by what are called ” trimmer arches ” which should rest on one end of the brickwork of the chimney. All chimneys should be built from the ground, and under no circumstances rest on the floor beams. Furnaces he regards as fruitful sources of files, and recommends metal Cold air boxes instead of wooden Furnace hotair flues, when they pass between floors or wooden partitions should be double, with an inner and outer pipe, separated by an air space of half an inch.
Among other preventatives of the spreading of fires, Mr. Moore states that all spaces which lead to the floors above should be filled in at each fluor with incombustible material to stop the draft, the best material for this purpose being bricks and mortar.