Heat transfer and conditioning unit

DETAILED DESCRIPTION OF THE INVENTION FIG.
1 shows schematically one form of the present invention, wherein the heat transfer and conditioning unit includes an upright casing 11 closed at its upper and lower ends and disposed above or adjacent to fire chamber 15 within the fire box 13 which includes a conventional boiler 19, fragmentarily shown.
One or more exhaust passages are provided through said casing with exhaust inlet 27 at the lower end thereof, communicating with said exhaust passage and having one or more exhaust outlets at the upper end thereof adapted for communication with a flue to atmosphere.
Said exhaust conduit is defined by a series of pairs of opposed parallel laterally elongated plates 21 arranged in longitudinal alignment.
Inwardly directed opposed V-formed plates 23 are arranged at the ends of said parallel plates interconnecting adjacent plates and defining therewith a series of longitudinally spaced laterally elongated venturi passages 25.
The lower-most venturi passages define a pair of exhaust inlets 27, FIG.
1, communicating with the combustion chamber.
The upper-most pair of venturi passages define the exhaust outlets 29 adapted for communication to the flue or conventional stack for exhausting to atmosphere.
In the illustrative embodiment, there is shown a pair of exhaust conduits which extend up through said casing.
It is contemplated that there could be one or more such exhaust passages for the conduction of products of combustion through said casing.
As schematically shown, there is provided an air intake housing 31 upon said casing which includes blower or impeller 33 operated by motor 35, schematically shown, for the intake of fresh or ambient air from the interior of a room of a building, for example, into a sleeve 39 on or around casing 11 and to define an air inlet 41 within said casing.
A series of longitudinally or laterally extending fins 43 are applied to the exterior surface of the plates 21-23 to provide for an increased and more efficient transfer of heat from the exhaust gases into the chamber upon the exterior of said gas exhaust conduits within said casing