F - Mech Eng,Light,Heat,Weapons – 22 – B
Patent
F - Mech Eng,Light,Heat,Weapons
22
B
122/36
F22B 11/04 (2006.01) F24H 1/43 (2006.01) F24H 1/44 (2006.01)
Patent
CA 1099158
ABSTRACT OF THE DISCLOSURE 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 formally closes one end of the heated area and the spiral wall to provide access thereto when the wall is removed.
302185
Asman Elof V.
Rolston George A.
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