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Official Gazette of the United States Patent Office. United States. Patent Office - 1894 - PatentsThe combination with a vacuum chamber, of a supportingplste, means for n a steain or hot water boiler, a flat vertical section having side water tubes k' connecting the side tubes beneath the opening for the fuel door, as herein set forth.

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School Fuel Vacuum Boiler Dealer. School Fuel Vapor Vacuum Water Tube Boiler Dealer How to Destroy a Boiler -- Part 1 Boilers rely on the water to protect the steel boiler tubes from the temperatures in the furnace which greatly exceed the melting point of the tube material. Get a quote

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