Gear's illustrated catalogue of wood and iron working machinery (1872)
A.S. Gear, Gear, A. S · Boston : Printed at A.S. Gear's printing office, 62 Sudbury Street · leaf 209
ts. All Heaters set by ourselves are supplied with cold air as above stated. The Defiance is the only Heater we know of with sufficient heating capacity to warrant the introduction of cold air. In conclusion, suffice it to say that the Defiance is a better Heater than many others in the market, and… … Shotuing the part with radiating surface, which sets inside the Fire-place,and heats the Air as it passes to the upper Booms. EXPLANATION. A.—Feeder. B.—Fire Box. C.—^Descending Flue. D.—Ascending Flue.E.—Smoke Pipe Collar.F.—Direct Draft Damper. 22 L %m Wi&tf Irtmi WoAi® s^ TMWMWEWa WITH SAD…
