The old-fashioned furnace may be bound for the postwar ash heap. Cheap new miniature house heaters have recently been announced by the soft-coal industry and an auto-heater manufacturer. This week the anthracite industry joined in with a pint-sized burner of its own.
Hard Coal. The heater designed by Anthracite Industries, Inc. (not yet tested in a house) is a steel pipe 18 inches long and four to six inches in diameter (four inches for a four-room house, six inches for eight rooms). It has a feeder which pushes coal in at one end and ashes out at the other, a water jacket,...
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