Combination fireplace and fluid fuel heater device

Claim 1

A PREFABRICATED COMBINATION FIREPLACE AND HEATER DEVICE READILY INSTALLABLE AS A UNIT INTO A BUILDING STRUCTURE SUCH AS A HOUSE, SAID DEVICE COMPRISING A HOUSING OF GENERALLY RECTANGULAR CONFIGURATION INCLUDING FRONT, REAR TOP, BOTTOM AND SIDE WALL PORTIONS, SAID DEVICE WHEN INSTALLED IN A BUILDING HAVING THE FRONT WALL PORTION THEREOF POSITIONED INTERIORLY OF THE BUILDING AND HAVING THE REAR WALL PORTION THEREOF DISPOSED EXTERIORLY OF THE BUILDING, SAID FRONT WALL PORTION HAVING A CENTRALLY LOCATED RECESS THEREIN AND DEFINING WITH SAID REAR, BOTTOM, TOP AND SIDE WALL PORTIONS A FORWARDLY OPENING OPEN HEARTH COMBUSTION CHAMBER IN WHICH SOLID FUEL, SUCH AS WOOD AND THE LIKE, MAY BE BURNED, MEANS DEFINING A FLUID FUEL HEATER COMBUSTION CHAMBER POSITIONED BELOW AND SEALED FROM SAID OPEN HEARTH COMBUSTION CHAMBER, A FLUID FUEL HEATER MECHANISM POSITIONED WITHIN SAID HEATER COMBUSTION CHAMBER AND BEING CONNECTED TO A SOURCE OF FLUID FUEL UNDER PRESSURE, COMBUSTION AIR PASSAGE MEANS CONNECTED IN COMMUNICATING RELATION WITH SAID HEATER COMBUSTION CHAMBER FOR SUPPLYING COMBUSTION AIR THERETO, MEANS DEFINING WARM AIR DELIVERY PASSAGES POSITIONED IN JUXTAPOSED RELATION TO BUT SEALED FROM SAID COMBUSTION CHAMBERS WHEREBY AIR IN SAID WARM AIR DELIVERY PASSAGES MAY BE SELECTIVELY HEATED BY THE COMBUSTION FUEL IN SAID CHAMBERS, A PAIR OF FLUE GAS EXHAUST CONDUITS, ONE DISPOSED INTERIORLY OF AND SEALED FROM THE OTHER AND EACH BEING CONNECTED IN COMMUNICATING RELATION WITH ONE OF SAID COMBUSTION CHAMBERS TO PERMIT THE EXHAUSTING OF FLUE GASES THEREFROM. AND A HOLLOW FLOW-CONTROL STRUCTURE DEFINING A CHAMBER THEREWITHIN AND BEING INTERPOSED IMMEDIATE THE ENDS OF AND IN COMMUNICATING RELATION WITH THE EXHAUST CONDUIT FOR THE HEATER COMBUSTION CHAMBER, SAID STRUCTURE HAVING AN AIR INLET INTERCONNECTING THE CHAMBER DEFINED BY SAID STRUCTURE WITH THE EXTERIOR TO PERMIT AIR TO FLOW INTO SAID CHAMBER-DEFINING STRUCTURE AND TO THEREBY RETARD THE FLOW OF FLUE GASES FROM SAID HEATER CHAMBER WHEREBY TO PERMIT GREATER DEGREE OF COMBUSTION OF THE FLUID FUEL IN SAID HEATER COMBUSTION CHAMBER.