US3085564A

US3085564A - Heating systems

Info

Publication number: US3085564A
Application number: US62358A
Authority: US
Inventors: Gerald A Weimer
Original assignee: Individual
Current assignee: Individual
Priority date: 1960-10-13
Filing date: 1960-10-13
Publication date: 1963-04-16
Anticipated expiration: 1980-04-16

Description

April 16, 1963 G. A. WEIMER 3,085,564

HEATING SYSTEMS INVENTOR.

GERALD A. WEIMER TTTTTT EY April 16, 1963 G. A. WEIMER 3,085,564

HEATING SYSTEMS Filed Oct. 15, 1960 s Sheets-Sheet 2 INVENTOR. GERALD A. WEIMER 29' 2 BY gugwtw ATTORNEY April 16, 1963 Filed Oct. 15, 1960 G. A. WEIMER 3,085,564

HEATING SYSTEMS 3 Sheets-Sheet 3 GERALD A. WEIMER ATTORNEY United States 3,085,564 HEATING SYSTEMS Gerald A. Weimer, Decatur, Ga. (214 Peeke Ava, Kirkwood 22, Mo.) Filed Oct. 13, 1960, Ser. No. 62,358 12 Claims. (Cl. 126-121) This invention relates to heating systems and is more particularly concerned with a combination fireplace and central heater for installation in a multiroom dwelling.

In the past, fireplaces have been extensively employed in all size dwellings and until recent years these fireplaces formed the main source of heating the dwelling. :Recently, however, central heating systems have displaced the fireplaces which now serve more as ornamentations for rooms than as constant sources of heat during cold months. Thus, in the modern dwellings which are provided with fireplaces, the fireplace is used only intermittently, mainly for the purpose of adding ornamentation to a particular room.

When such fireplaces are used, the heat from the fire therein is very inefiiciently distributed in the room, mainly by radiation and to a limited extent by convection, with a substantial amount of the heat, generated by the fire, leaving the room through the chimney of the fireplace. The heat that is distributed to the room tends to unbalance the central heating system of the dwelling by actuating the thermostat before other rooms are adequately heated if the thermostat is located close to the fireplace and by overheating the particular room in the event the thermostat is remotely located with respect to the fireplace.

Usually, the central heater or furnace of a modern heating system is located either in a basement or in the attic of a dwelling where it is not readily accessible, even though the size of the furnace does not preclude other locations. In such instances, separate chimneys, fiues or stacks for the fireplace and furnace are required.

The cost of installation of separate fireplaces and furnaces is usually relatively high which persuades increasing numbers of people building cheaper homes to forego the relative luxury of the fireplace, even though in times when natural gas and electrical service are interrupted to the home, the fireplace may present the sole means of even partially heating a house.

To obviate the above problems I have devised an inexpensive dual heating unit which includes both the fireplace and a heating furnace operating in conjunction with the conventional ducts for circulating theheated air throughout the entire dwelling. Briefly, my heating system includes a hollow cabinet or closure divided into a plurality of compartments. In the central compartment is a fireplace having a stack in the upper portion, the stack leading to the exterior of the building. The stack serves as a first preheater zone for incoming cool air leading from the return ducts. In the lower portion of the central compartment behind the fireplace are a plurality of battles which define channels forming a second preheating zone. For circulating the air from the first preheating zone to the second preheating zone, a blower is located in an outer compartment of the cabinet, the intake of the blower communicating through a vertical partition with the first preheating zone and the discharge or exhaust of the blower communicating with the channels formed by the baffles.

Opposite the blower and communicating with the channels of the second preheater is a furnace which heats the air and discharges the same to a plenum chamber or manifold whence the air is distributed via the heating ducts to the various rooms.

Accordingly, it is an object of the present invention to provide a heating system which is inexpensive to manufacture, easy to install in existing buildings, durable in structure, and eificient in operation.

Patented Apr. 16, 1953 Another object of the present invention is to provide a heating system which provides, in a compact structure, a fireplace and a furnace, each of which may be utilized separately for the heating of air distributed throughout the dwelling or which may be utilized in conjunction with each other for that purpose.

Another object of the present invention is to provide a heating system which requires no basement or attic to accommodate the system and is so constructed that it may be installed in the central portion of a room and thus may form a part of the partition of the room.

Another object of the present invention is to provide a heating system having a fireplace wherein the heat from a fire in the fireplace may be more etliciently utilized for heating a dwelling.

Another object of the present invention is to provide in [a heating system a furnace which is readily accessible for inspection and repair and a blower which may be easily and quickly removed, if desired.

Other objects, features and advantages of the present invention will become apparent from the following description when taken in conjunction with the accompanying drawings wherein like characters of reference designate corresponding parts throughout the several views and wherein:

FIG. 1 is a partially broken perspective view of a heating system constructed in accordance with the present invention.

FIG. 2 is a cross sectional view taken along line 2-2 in FIG. 1.

FIG. 3 is a cross sectional view taken along line 3-3 in FIG. 1.

FIG. 4 is a perspective view of one of the bafiles of the heating system shown in FIG. 1.

FIG. 5 is a cross sectional view taken along line 55 in FIG. 2.

FIG. 6 is a schematic wiring diagram of the electrical circuit of the heating system shown in FIG. 2.

Referring now in detail to the embodiment chosen for the purpose of illustrating the present invention, it being understood that in its broader aspects of the present invention is not limited to the exact details herein depicted, numeral 10 denotes generally a cabinet which is a hollow, upright substantially rectangular member provided with a lower central opening 11 and mounted on a bottom plate 12. The bottom plate 12 extends forwardly beyond the cabinet 10 to provide a hearth below and in front of the opening 11. Above the opening 11 and extending forwardly from the front of cabinet 10 is a mantel 16-.

The cabinet 10 includes a plurality of spaced, vertically disposed,

transverse partitions

18, 19, 20, and 21 which are spaced apart along their back edges by

panels

22, 24 and 26 of cabinet 10. The

side plates

18 and 21 are each turned inwardly at their vertical edges to form reverse flanges, such as flange 28. The front of cabinet lit includes an upper wing panel 29 disposed between partition 19 and flange 28 of partition 18. Wing panel 29' is turned inward to provide matching flanges 30, and bolts, or the like, are passed through the

flanges

30 and 28, and flange 30 and plate 19. A lower wing panel 31 is provided below panel 29, and is similarly formed, but is not permanently secured; rather, the panel 31 is held by Rear panels for all sections are similarly constructed, and are all permanently secured.

in PEG. 3 the mantel 16 is formed of sheet material and has a top platform 17 and front and back downwardly turned

flanges

23 and 23a. The back flange 23a is bolted to the front of the cabinet 16} by bolts 25. The bolt may be in the form of permanently installed studs in panel 35 which project through appropriate apertures and are secured by nuts 25'.

In FIG. 2, it will be seen that the outer compartment is divided by vertically spaced horizontally disposed

plates

38 and 38 to form a blower chamber 39. The blower chamber 39 houses a blower 40 which discharges to an elbow duct 41 through an opening in plate 38. Blower compartment 39 is provided with an opening through partition 19 over which is a filter 44. The edges of

horizontal plates

38, 38 are covered with strips 42 of rubber, or the like, which act as a gasket to seal the compartment 39. The duct 41 communicates with center section 33, to be discussed in detail hereinafter.

The blower 46 may be mounted on plate 38 for easy removal by hold-down strips 43 which overlap flanges 42a on the blower. The electrical connection may be of a plug-in type so that the entire assembly may be easily removed for servicing. A gasket 47, along the periphery of the blower opening, seals the ducts and precludes the necessity of a permanent connection to the duct 41.

The other outer compartment 26 is provided with a horizontal plate 45 which divides compartment 26 into upper and lower chambers and also supports, in the upper chamber, a conventional space heater 46. The heater 46 may utilize gas, oil or electricity, as desired, and may be installed similarly to blower 49 so that it may be easily and quickly removed. Below the plate 45 is a duct 48 in the lower chamber, the duct 48 providing a passageway between the lower portion of the central compartment 33 and the intake of the space heater 46. Above the space heater and mounted thereon is a plenum chamber of manifold 49, the manifold 49 projecting above and out of the compartment 26. A plurality of hot air ducts 50 are connected to the manifold 49 and are adapted to discharge the hot air from heater 46 via manifold 49 to the various rooms of the dwelling to be heated. The flue pipe 51 of heater 26 extends upwardly and is bent inwardly discharging into an intermediate portion of the central stack s. Room air can directly be supplied to the heater 46 bypassing the chamber 33, if desired. This room air is supplied directly to the heater 46 as it passes through a grill g in an appropriate opening in partition 21.

As best seen in FIGS. 2, 3 and 5, a horizontally disposed metal plate 52 is provided in the lower central portion of the central compartment 33, the plate 52 extending from the lower edge of front panel 35 inwardly to the central portion of panel 24. In the forward central portion of the plate 52 is an opening 53 which may be closed by a damper plate 54 hingedly secured by a hinge 55 to plate 52. The damper plate 54 is controlled by a lever 56 which is pivotally carried by a transverse channel member 57 extending below and supporting the forward end of plate 52. The lever 56 is provided with a link 53 pivotally connected to the damper plate 54 whereby rotational movement of the lever 56 will lift or lower the plate 54. Below the opening 53, there is a downwardly and inwardly projecting wall 60 which terminates in a vertically disposed lower wall 61, the walls 68 and 61 forming the back of the fireplace 11. The sides of the fireplace are formed by vertically disposed inwardly tapering

side walls

62 and 63, the inner edge portions of which connect to the edges of

walls

60 and 61 while the outer edge portions of which are connected as best seen in FIG. to the channel members 36, 36', respectively.

Above the plate 52 and surrounding the opening 53 is an upstanding fiue member formed by front and

back wall members

64 and 65 which are arranged parallel to each other and inwardly and upwardly tapering side wall members such as member 66. The upper end 67 of the flue member is provided with a central opening communicating with the lower end of an upstanding stack s which projects outwardly beyond the central opening in an intake manifold 69 to which the return air ducts 70 are connected. In more detail, the intake manifold 69 is mounted on angle irons such as angle iron 69. arranged around the upper edge of the panels and partitions forming the upper end of the central compartment 33.

Below the flue member and behind the

fireplace walls

60 and 61 is a second wall 72 which extends from the bottom plate 12 to the plate 52. Thus is provided a secondary preheater chamber 73 communicating on one side with duct 41 and on the other side with duct 48. Within the chamber 73 are a plurality of lower baflles 74 disposed horizontally between wall 61 and wall 72. Each baffle 74 is constructed, as best seen in FIG. 4, with a plurality of spaced openings 75 formed by upwardly bent louvers 76. Each louver 76 is connected to its baflle 74 along a bend line 77 and projects upwardly at an angle therefrom. Above the lower bafile 74 are a plurality of intermediate baffles 78 which project between wall 60 and wall 72, the baffles being arranged parallel to each other at an angle extending upwardly and rearwardly. Above the intermediate baflles 78 are a plurality of wider baffles 79 which are arranged parallel and above the baffles 78. All of the

bafiles

74, 78 and 79 are provided with openings, such as opening 75, and louvers, such as louvers 76.

The louvers 76 open toward the duct 41 so that air fed by duct 41 into the secondary heating chamber will be placed in turbulence so that a great portion of the air contacts the relatively

hot walls

60 and 61 and are heated thereby.

Referring now to FIG. 6, it will be seen that the motor 80 for the blower 40 is connected to line current by

wires

81 and 82 across a normally open switch 83 of a relay having a coil 84. The solenoid valve 85 which supplies gas to the space heater 46 is controlled by a solenoid 86 which is adapted to be connected to the secondary coil of a transformer 87 via

wires

88, 89, 90 and 91, across a normally open switch 92 of a relay having a coil 93 connected in series with the thermostatic switch 94 across wires 88 and 91. The relay coil 84 is connected in series with an on-off switch 95 across wires 88 and 91, while the other on-olf switch 96 is connected in parallel with a switch 95 of the relay actuated by coil 93. Thus, when the thermostatic switch 94 is closed, energizing the coil 93, switches 92 and 95 are closed, thereby completing a circuit to solenoid 86 actuating the solenoid valve 85 so that the gas will be supplied to the heater 46. As the

switches

92, 95, are closed, a circuit will be complete to the solenoid 84, closing the switch 83 and thereby energizing the motor 80 which will actuate the blower 40. By this arrangement, gas will be supplied to the heater 46 simultaneously with the actuation of the blower 40. Further, when the thermostatic switch 94 is opened, the blower 40 and the valve 85 will simultaneously be shut off to deactuate the heater 46 and the blower 40. Nevertheless, the blower 40 may be actuated separately by the closing of switch 96 which energizes coil 84 and closes switch 83 without valve 85 being opened.

In operation, the system of the present invention is in stalled in a house adjacent one wall thereof, and the

ducts

50 and 70 are connected respectively to the hot air outlet openings in the various rooms of the dwelling and to the air return openings in the conventional manner. Under normal circumstances with no fire in the fireplace 11, the thermostatic switch 94 will actuate the valve 85 and motor 80 simultaneously so that air will be drawn by the blower via ducts 70 into the central chamber 33 forming the first preheating zone of the system. The air circulates around the stack 52 and the flue member therebelow and is moved into the chamber containing the motor 40 through the filter 44. If a fire is in the fireplace 11, the heat from the fire will heat the flue member and the stack 52 and hence the incoming air will be preheated in a first preheating zone before it passes into the chamber containing the blower 40. The blower 40 passes the air through duct 41 into the secondary heating zone defined by chamber 73. The baflies, such as baffles '74, will cause turbulence in the incoming air and cause the air to contact the

walls

60 and 61 during its travel through chamber 73 so that if a fire is in the fireplace 11, the incoming air will be again heated before being discharged to the duct 48. Since the

baifles

74, 73 and 79 are in contact with

walls

60 and 61, they too, will be heated to impart heat to the air. From the chamber 73 the air is discharged into duct 48 and thence into the heater 46 whence the air is heated and discharged into the manifold 49 for distributing via ducts 50 to the various rooms.

It will be obvious that if the fireplace alone is utilized, the air will be heated in the two preheating zones and will be distributed to the various rooms by the blower 40. Also, if there is no fire in the fireplace 11, the air nevertheless will be heated in the heater 46 if thermostatic switch 94 is closed.

It will be obvious to those skilled in the art that many variations may be made in the embodiment here chosen for the purpose of illustrating the present invention without departing from the scope thereof as defined by the appended claims.

I claim:

1. A heating system comprising a hollow cabinet, a first set of partitions dividing said cabinet into a central compartment, and outer compartments, a plate dividing said central compartment into an upper zone and a lower zone, said upper zone constituting a first preheating zone, a second set of partitions dividing said lower zone into a fireplace and a second preheating zone, there being provided an opening in said plate communicating with said fireplace, a stack extending into said first preheating zone and terminating therein, means connecting the stack to the opening in said plate, air inlet means for directing air into said first preheating zone, a blower in one of said outer compartments, a heater in the other of said outer compartments, first duct means connecting said blower and said second preheating zone, second duct means connecting said second preheating zone and said heater, and air discharge means for directing air from said heater outwardly of said cabinet, said blower communicating with said first preheating zone for blowing air from said first preheating zone through said first and second duct means through said second preheating zone and said heater and into said discharge means.

2. A heating system comprising a hollow cabinet, a first set of partitions dividing said cabinet into a central compartment and outer compartments, a plate dividing said central compartment into an upper zone and a lower zone, said upper zone constituting a first preheating zone, a second set of partitions dividing said lower zone into a fireplace and a second preheating zone, said plate being provided with an opening communicating with said fireplace, a flue member surrounding said opening and extending into said first preheating zone, a stack extending into said first preheating zone and opening at its lower end into said flue member, said stack extending outwardly of said cabinet, air inlet means for directing air into said first preheating zone, a blower in one of said outer compartments, a heater in the other of said outer compartments, first duct means connecting said blower and said second preheating zone, second duct means connecting said second preheating zone and said heater, and air discharge means for directing air from said heater outwardly of said cabinet, said blower communicating with said first preheating zone for forcing air through said first duct means into said second preheating zone and then for blowing air from said second preheating zone through said second duct means and said heater into said discharge means.

3. A heating system comprising a hollow cabinet, a first set of partitions dividing said cabinet into a central compartment and outer compartments, a plate dividing said central compartment into an upper zone and a lower zone, said upper zone constituting a first preheating zone, a second set of partitions dividing said lower zone into a fireplace and a second preheating zone, said plate being provided with an opening communicating with said fireplace, a flue member surrounding said opening and extending into said first preheating zone, a stack extending into said first preheating zone and opening at its lower end into said flue member, said stack extending outwardly of said cabinet, air inlet means for directing air into said first preheating zone, the air in said first preheating zone being heated as it passes around the flue member and stack in heat exchange relationship from the heat supplied by exhaust gases, the air in said second preheating zone being heated as it comes into contact with the second set of partitions separating said fireplace and second preheating zone, a blower in one of said outer compartments, a heater in the other of said outer compartments, first duct means connecting said blower and said second preheating zone, second duct means connecting said second preheating zone and said heater, and air discharge means for directing air from said heater outwardly of said cabinet, said blower communicating with said first preheating zone for forcing air through said first duct means into said second preheating zone and then for blowing air from said second preheating zone through said second duct means and said heater into said discharge means.

4. A heating system comprising a hollow cabinet, a first set of partitions dividing said cabinet into a central compartment and outer compartments, a plate dividing said central compartment into an upper zone and a lower zone, said upper zone constituting a first preheating zone, a second set of partitions dividing said lower zone into a fireplace and a second preheating zone, said plate being provided with an opening communicating with said fireplace, a flue member surrounding said opening and extending into said first preheating zone, a stack extending into said first preheating zone and opening at its lower end into said flue member, said stack extending outwardly of said cabinet, air inlet means for directing air into said first preheating zone, a first set of baflies mounted within said second preheating zone, a second set of intermediate baflies mounted within said second preheating zone and being arranged parallel to each other, said second set of baflles extending rearwardly and upwardly at an angle with respect to said first set of baffles, the air in said first preheating zone being heated as it passes around the flue member and stack in heat exchange relationship from the heat supplied by exhaust gases, louver means associated with said first and second sets of baflies for deflecting the air across said sets of baffles, the air in said second preheating zone being heated as it comes into contact with the second set of partitions separating said fireplace and second preheating zone, a blower in one of said outer compartments, a heater in the other of said outer com- I partments, first duct means connecting said blower and said second preheating zone, second duct means connecting said second preheating zone and said heater, and air discharge means for directing air from said heater outwardly of said cabinet, said blower communicating with said first preheating zone for forcing air through said first duct means into said second preheating zone and then for blowing air from said second preheating zone through said second duct means and said heater into said discharge means.

5. A heating system comprising a hollow cabinet, a first set of partitions dividing said cabinet into a central compartment and outer compartments, a plate dividing said central compartment into an upper zone and a lower zone, said upper zone constituting a first preheating zone, a second set of partitions dividing said lower zone into a fireplace and a second preheating zone, said plate being provided with an opening communicating with said fireplace, a flue member surrounding said opening and extending into said first preheating zone, a stack extending into said first preheating zone and opening at its lower end into said flue member, said stack extending outwardly of said cabinet, air inlet means for directing air into said first preheating zone, a first set of baflies mounted within said second preheating zone, a second set of intermediate batfles mounted within said second preheating zone and being arranged parallel to each other, said second set of baflies extending rearwardly and upwardly at an angle with respect to said first set of baflies, a third set of battles mounted in said second preheating zone above said second set of baflies and in parallel relation therewith, a portion of said third set of baffles being substantially wider than said first or second set of bafiies, louver means associated with each of said first, second, and third sets of battles for deflecting the air across said baflies, the air in said first preheating zone being heated as it passes around the flue member and stack in heat exchange relationship from the heat supplied by exhaust gases, the air in said second preheating zone being heated as it comes into contact with the second set of partitions separating said fireplace and second preheating zone, a blower in one of said outer compartments, a heater in the other of said outer compartments, first duct means connecting said blower and said second preheating zone, second duct means connecting said second preheating zone and said heater, and air discharge means for directing air from said heater outwardly of said cabinet, said blower communicating with said first preheating zone for forcing air through said first duct means into said second preheating zone and then for blowing air from said second preheating zone through said second duct means and said heater into said discharge means.

6. A heating system comprising a hollow cabinet, a first set of partitions dividing said cabinet into a central compartm'ent and outer compartments, a plate dividing said central compartment into an upper zone and a lower zone, said upper zone constituting a first preheating zone, a second set of partitions dividing said lower zone into a fireplace and a second preheating zone, said plate being provided with an opening communicating with said fireplace, a flue member surrounding said opening and extending into said first preheating zone, a stack extending into said first preheating zone and opening at its lower end into said flue member, said stack extending outwardly of said cabinet, air inlet means for directing air into said first preheating zone, a first set of baffles mounted within said second preheating zone, a second set of intermediate baflies mounted within said second preheating zone and being arranged parallel to each other, said second set of baflles extending rearwardly and upwardly at an angle with respect to said first set of baflies, a third set of baffles mounted in said second preheating zone above said intermediate bafiles and in parallel relation therewith, a portion of said third set of baifles being substantially wider than said first or second set of bafiies, each of said baffies being provided with a plurality of spaced openings, louver means mounted on each of said baffles, adjacent said spaced openings, the air in said first preheating zone being heated as it passes around the,

flue member and stack in heat exchange relationship from the heat supplied by exhaust gases, the air in said second preheating zone being heated as it comes into contact with the second set of partitions separating said fireplace and second preheating zone, a blower in one of said outer compartments, a heater in the other of said outer compartments, first duct means connecting said blower and said second preheating zone, second duct means connecting said second preheating zone and said heater, and air discharge means for directing air from said heater outwardly of said cabinet, said blower communicating with said first preheating zone for forcing air through said first duct means into said second preheating zone and then for blowing air from said second preheating zone through said second duct means and said heater into said discharge means.

7. A heating system comprising a hollow cabinet, a first set of partitions dividing said cabinet into a central compartment and outer compartments, a plate dividing said central compartment into an upper zone and a lower zone, said upper zone constituting a first preheating zone, a second set of partitions dividing said lower zone into a fireplace and a second preheating zone, said plate being provided with an opening communicating with said fireplace, a flue member surrounding said opening and extending into said first preheating zone, a stack extending into said first preheating zone and opening at its lower end into said flue member, said stack extending outwardly of said cabinet, air inlet means for directing air into said first preheating zone, the air in said first preheating zone being heated as it passes around the flue member and stack in heat exchange relationship from the heat supplied by exhaust gases, the air in said second preheating zone being heated as it comes into contact with the second set of partitions separating said fireplace and second preheating zone, a blower in one of said outer comaprtments, a heater in the other of said outer compartments, first duct means connecting said blower and said second preheating zone, second duct means connecting said second preheating zone and said heater, air discharge means for directing air from said heater outwardly of said cabinet, said blower communicating with said first preheating zone for forcing air through said first duct means into said second preheating zone and then for blowing air from said second preheating zone through said second duct means and said heater into said discharge means, and alternate air inlet means mounted within the outer compartment containing the heater for drawing air into said heater and bypassing said first and second preheating zones.

8. A heating system comprising a hollow cabinet, a first set of partitions dividing said cabinet into a central compartment and outer compartments, a plate dividing said central compartment into an upper zone and a lower zone, said upper zone constituting a first preheating zone, a second set of partitions dividing said lower zone into a fireplace and a second preheating zone, said plate being provided with an opening communicating with said fireplace, a flue member surrounding said opening and extending into said first preheating zone, a stack extending into said first preheating zone and opening at its lower end into said flue member, said stack extending outwardly of said cabinet, air inlet means for directing air into said first preheating zone, the air in said first preheating zone being heated as it passes around the flue member and stack in heat exchange relationship from the heat supplied by exhaust gases, the air in said second preheating zone being heated as it comes into contact with the second set of partitions separating said fire place and second preheating zone, a blower in one of said outer compartments, a heater in the other of said outer compartments, fuel supply means operatively associated with said heater for delivery of fuel to said heater, first duct means connecting said blower and said second preheating zone, second duct means connecting said second preheating zone and said heater, air discharge means for directing air from said heater outwardly of said cabinet, said blower communicating with said first preheating zone for forcing air through said first duct means into said secondpreheating zone and then for blowing air from said second preheating zone through said second duct means and said heater into said discharge means, and electrical control means operatively connected to the heater, fuel supply means and blower for actuating the blower in pretimed relationship to the operation of the heater, said electrical control means being adapted to cause the fuel supply means to deliver fuel to the heater in timed relation to the actuation of the blower so that the air forced by said blower can be heated by the then actuated heater.

9. The heating system of claim 3, wherein the second preheating zone is provided with a battle means mounted therein for defining a plurality of horizontally disposed passageways.

10. In a heating system including a hollow cabinet having a plurality of walls, a plurality of partitions spaced extending between said walls internally of said cabinet defining a fireplace and a preheating zone disposed adjacent to said fireplace, a first set of bafiles extending between said partitions in said preheating zone for defining a plurality of horizontally disposed passageways in said preheating zone, a second set of intermediate baflles extending between said partitions, said intermediate bafiles being arranged parallel to each other and extending angu larly upwardly with respect to said first set of bafiles, louver means associated with said first and second sets of baffies for deflecting the air across said sets of baffles, means for directing air through said passageways, said means including a blower mounted on one side of said fireplace and within said cabinet, a heater on the other side of said fireplace and within said cabinet, and means for directing air from said passageways through said heater and externally of said cabinet.

11. In a heating system including a hollow cabinet having a plurality of walls, a plurality of partitions spaced extending between said walls internally of said cabinet defining a fireplace and a preheating zone disposed adjacent to said fireplace, a first set of baffies extending between said partitions in said preheating zone for defining a plurality of horizontally disposed passageways in said preheating zone, a second set of intermediate bafi les extending between said partitions, said intermediate baflles being arranged parallel to each other and extending angularly upwardly with respect to said first set of batfies, a third set of bafiles mounted above said intermediate 10 bafiles in parallel relationship therewith, a portion of said third set of baffles being substantially wider than said first or second set of baffles, louver means associated with each of said first, second, and third sets of bafiies for deflecting the air across said sets of battles, and means for directing air through said passageways.

12. In a heating system including a hollow cabinet having a plurality of Walls, a plurality of spaced partitions extending between said walls internally of said cabinet defining a fireplace and a preheating zone disposed adjacent to said fireplace, a first set of baffles extending between said partitions in said preheating zone for defining a plurality of horizontally disposed passageways in said preheating zone, a second set of intermediate baflles extending between said partitions, said intermediate baffles being arranged parallel to each other and extending angularly upwardly with respect to said first baffles, a third set of bafiles mounted above said intermediate baffies in parallel relationship therewith, a portion of said third set of baffies being substantially wider than said first or second set of baflles, each of said bafiies being provided with a plurality of spaced openings, louver means mounted on each of said bafiles adjacent said spaced openings, and means for directing air through said passageways.

References Cited in the file of this patent UNITED STATES PATENTS 361,727 Smith Apr. 26, 1887 1,056,373 Segelken Mar. 18, 1913 1,496,509 Abell et al. June 3, 1924 1,583,374 Uhrstrom May 4, 1926 1,588,587 Klaus June 15, 1926 1,699,241 Johnson Jan. 15, 1929 2,158,041 Covert May 9, 1939 2,471,351 Russell May 24, 1949 2,525,400 Crawford Oct. 10, 1950 2,703,566 Pogel et a1 Mar. 8, 1955 FOREIGN PATENTS 532,680 Great Britain Jan. 29, 1941 819,152 Great Britain Aug. 26, 1959 335,557 Switzerland Feb. 28, 1959

Claims

1. A HEATING SYSTEM COMPRISING A HOLLOW CABINET, A FIRST SET OF PARTITIONS DIVIDING SAID CABINET INTO A CENTRAL COMPARTMENT, AND OUTER COMPARTMENTS, A PLATE DIVIDING SAID CENTRAL COMPARTMENT INTO AN UPPER ZONE AND A LOWER ZONE, SAID UPPER ZONE CONSTITUTING A FIRST PREHEATING ZONE, A SECOND SET OF PARTITIONS DIVIDING SAID LOWER ZONE INTO A FIREPLACE AND A SECOND PREHEATING ZONE, THERE BEING PROVIDED AN OPENING IN SAID PLATE COMMUNICATING WITH SAID FIREPLACE, A STACK EXTENDING INTO SAID FIRST PREHEATING ZONE AND TERMINATING THEREIN, MEANS CONNECTING THE STACK TO THE OPENING IN SAID PLATE, AIR INLET MEANS FOR DIRECTING AIR INTO SAID FIRST PREHEATING ZONE, A BLOWER IN ONE OF SAID OUTER COMPARTMENTS, A HEATER IN THE OTHER OF SAID OUTER COMPARTMENTS, FIRST DUCT MEANS CONNECTING SAID BLOWER AND SAID SECOND PREHEATING ZONE, SECOND DUCT MEANS CONNECTING SAID PREHEATING ZONE AND SAID HEATER, AND AIR DISCHARGE MEANS FOR DIRECTING AIR FROM SAID HEATER OUTWARDLY OF SAID CABINET, SAID BLOWER COMMUNICATING WITH SAID FIRST PREHEATING ZONE FOR BLOWING AIR FROM SAID FIRST