Method and device for improving the efficiency of heat generator

Liquid heaters and vaporizers – Fire tube – Volute

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122136C, F22B 1104

Patent

active

041889177

ABSTRACT:
An apparatus for heating a first fluid such as water or the like by moving such fluid in counterflow heat exchange relationship with a heated second fluid such as air. A spiral wall is provided in a portion of the apparatus which defines a spiral passageway for the heated fluid and such wall includes at least one conduit for the fluid to be heated. A removable wall normally closes one end of the heated area and the spiral wall to provide access thereto when the wall is removed.

REFERENCES:
patent: 26788 (1860-01-01), Schaubel
patent: 2651294 (1953-09-01), Horne
patent: 2787318 (1957-04-01), Wolfersperger

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