Abstract:
An apparatus for extracting heat from a heat source comprising a housing having a first end with a first opening and a second end with a second opening. The housing includes an internal compartment therein and the first end of the housing is connected to said heat source. A channel extends from the housing for providing access to the internal compartment. A hollow conduit is positioned within the internal compartment extending between the first opening and the second opening. A plurality of members are positioned on an exterior surface of the conduit and along the length thereof. The members are able to absorb heat from within the conduit and release the absorbed heat into the internal compartment creating heated air. The apparatus includes a means for drawing air through and expelling air from said conduit and means for moving said heated air out from said internal compartment to a second compartment. The apparatus is activated via means connected to each of the drawing means and the moving means. Upon activation of the apparatus, the drawing means draws the air through the conduit and expels air from the housing and the heated air is moved from within the internal compartment to the second compartment via the moving means for further distribution thereof.

Description:
BACKGROUND OF THE INVENTION  
       [0001]     1. Field of the Invention  
         [0002]     The present invention relates generally to heating systems and, more specifically, to a heating recovery apparatus designed to recover lost heat from a primary heating source. The apparatus is used in conjunction with a boiler and/or furnace. The apparatus includes a jacket for a flue having conduit clad in heatsinks and a fan moving air across a channel and discharged into a plenum. The apparatus also includes a fan positioned within to expel gases. An exteriorly positioned fan control mechanism with temperature display is in communication with temperature sensors and serves to activate the fans.  
         [0003]     2. Description of the Prior Art  
         [0004]     There are other heat recovery apparatus. Typical of these is U.S. Pat. No. 114,013 issued to R. Jennings on Apr. 25, 1871  
         [0005]     Another patent was issued to S. F. Rizzo on Apr. 14, 1959 as U.S. Pat. No. 2,147,658. Yet another U.S. Pat. No. 3,404,674 was issued to K. G. Albert on Oct. 8, 1868 and still yet another was issued on Apr. 3, 1979 to Anthony Talucci as U.S. Pat. No. 4,147,303.  
         [0006]     Another patent was issued to Ralph H. White on Feb. 2, 1982 as U.S. Pat. No. 4,313,562. Yet another U.S. Pat. No. 4,467,959 was issued to Charles F. Laviguer on Apr. 28, 1984. Another was issued to Darrell G. Knoch on Jun. 24, 1986 as U.S. Pat. No. 4,596,288 and still yet another was issued on Jun. 24, 1986 to Darrell G. Knoch as U.S. Pat. No. 4,596,288.  
         [0007]     Another patent was issued to Paul R. Bruenn on May 17, 1994 as U.S. Pat. No. 5,311,930. Yet another U.S. Pat. No. 5,944,090 was issued to William J. Teal on Aug. 31, 1999. Another was issued to James R. Stevenson on Jan. 18, 2000 as U.S. Pat. No. 6,014,966.  
         [0008]     An international patent was issued to Max Becker on Feb. 27, 1902 as U.K. Patent No. GB 1326. Another international patent was issued to John Everett Bell on Apr. 28, 1919 as U.K. Patent No. GB 125,689  
         [0009]     My invention has for its object to furnish an improved apparatus for heating the rooms of a building by introducing into them a supply of pure heated air, and which shall, at the same time, be simple in construction, easily applied, and effective in operation. It consists in the construction of the various parts of the apparatus as hereinafter more fully described. A represents an ordinary stove, and B represents a chimney, which may be made with or without a fireplace, as may be desired. C is a drum, the outer case or shell of which is connected at its lower end with the egress smoke-flue of the stove. The upper end or part of the drum C has a pipe, D, connected with it to conduct the smoke and other heated products of combustion to the chimney B. The ends or heads of the drum C may be made conical, as shown in the drawing, or flat, as may be desired. When the upper head is made conical the pipe D should be connected with its apex; but when made flat the said pipe D may be connected with the said head or with the upper part of the side of the drum C as may be desired.  
         [0010]     Broadly speaking, this invention aims to provide novel means for making use of the heat which would otherwise go to waste in the products of combustion proceeding from a stove or similar heater. Another object of the invention is so to construct the device that the air may be forced through it advantageously. Another object of the invention is to supply novel means for cleaning the conduits through which the products of combustion pass. It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.  
         [0011]     The invention comprises heat exchanger apparatus and controls for using flue gas heat to heat selected air and directing it to a space to be heated within a predetermined temperature range. The controls include a solenoid actuated by a space temperature controlling thermostat, at its lower temperature limit, so that the solenoid operates an aquastat including a thermostat in the medium that a burner normally heats, to raise the operative temperature range at which the flue gas emanating burner ordinarily turns on and off. When the air directed over the heat exchanger raises the space temperature to its predetermined upper limit, the aquastat acts to return the burner controls to turn the burner on and off, as under ordinary conditions.  
         [0012]     A heat-saving attachment in the nature of a jacket surrounding the smoke pipe of a furnace located in a basement or other relatively unheated space. Air is drawn from the unheated space or other area into the annular space between the jacket and smoke pipe, absorbing heat from the exterior of the pipe as it is directed through laterally disposed baffle means within the annular space from whence it is directed through a warm air duct to a space to be heated. Electrical controls may be provided to establish predetermined time delays between turning on and off of the furnace burner and respective on and off controls of an intake fan for drawing air from the unheated space into the jacket.  
         [0013]     A heat ventilator for insertion in a flue pipe above stoves and the like, wherein a double walled connector spaces the ventilator from the stove and establishes an annulus heating air delivered into a housing by convection, there being a smooth-walled flue tube extending longitudinally through the housing establishing a passage occupied by a stack of spaced parallel plates transversely disposed and engaged over said flue tube to absorb and dissipate heat into useful air transported by a motor fan through a downwardly open plenum receiving useful air from around said stove and discharging the same over said plates and into a living area.  
         [0014]     A heat exchanger and vaporizer adapted for mounting on an existing flue for utilizing heat which is otherwise lost and for providing moisture for space heating and conditioning. The heat exchanger and vaporizer includes a central stack for unimpeded transport of flue gases; a casing, with air inlet and outlet, enveloping the stack; a vaporizer contained within the casing for efficient heat transfer and for room conditioning; and a motor-fan unit for producing an airflow through the casing. The vaporizer is in the form of non-corrosive heat conductive helical tubing for maximizing heat transfer in a given volume, for maintenance free use and for convenience in assembly. The vaporizer is provided with a plurality of vapor vents on its upper surface and a pour spout located externally of the casing.  
         [0015]     The heat recovery device includes a section of standard flue pipe carrying a single row of a plurality of hollow, cylindrical heating tubes extending diametrically through the flue pipe section and a separate housing defining an air flow chamber surrounding the portion of the flue pipe section containing the heating tubes. A fan inside the housing draws ambient air into the housing and propels a flow of air toward a heated air outlet, both through the heating tubes and over the outer surface of the flue pipe section. A catalytic combustor for reducing air pollutants and potential creosote deposits is mounted in the flue pipe section upstream of the heating tubes. The flue pipe assembly is removably mounted on the housing so it can be removed in the event it fatigues and/or becomes plugged with carbon or creosote deposits during use. A thermostat on the flue pipe section turns the fan on and off when the temperature in the flue pipe section is respectively above and below a predetermined temperature.  
         [0016]     A device for reclaiming waste heat from cooking appliances. The device includes a baffle through which exhaust from the cooking appliance flows, an inlet for receiving exhaust from the cooking appliance, and an outlet for venting exhaust to the atmosphere outside the building or vehicle in which the cooking appliance is located. The baffle extracts heat from the exhaust as the exhaust flows therethrough. The baffle is in thermal communication with a heat sink that directs the extracted heat to the building or vehicle spaces to be heated. The heat reclamation device has a generally thin profile so that the device may be installed above and behind the work surface of the cooking appliance so as to consume a minimal amount of space while not interfering with the normal use of the appliance. The heat reclamation device has means to vent the exhaust directly to the atmosphere, bypassing the baffle.  
         [0017]     A heat exchanger for a furnace flue comprises an outer flue jacket having a plurality of axially parallel exhaust gas passages therethrough. The exhaust gas passage tubes are sealed from the remainder of the interior volume of the jacket by a baffle plate at each end thereof. The outer flue jacket is preferably of the same diameter as the flue pipe in the remainder of the system, e.g., six or eight inches, in order to preclude any requirement for adapters. An inlet pipe and an outlet pipe are affixed to opposite ends of the jacket, at some angle (e.g., normal) thereto. Exhaust gases from the furnace pass through the plurality of pipes within the outer jacket, heating the pipes. Airflow within the jacket and outside the pipes, is warmed by contact with the pipes, and flows from the outlet end to be used for warming the interior of the structure in which the unit is installed. A fan may be provided at either the inlet or outlet pipe, preferably at the inlet, to force air through the jacket and around the internal pipes. The fan may be a constant speed unit, or may include a variable speed control, and may be actuated by a parallel circuit to the main furnace blower motor, or by a separate thermostat. Preferably, the rate of flow of air provided by the fan is at least approximately equal to the rate of flow of exhaust gases through the flue, for optimum heat transfer.  
         [0018]     A heat exchange device for harnessing heat from an exhaust vent is provided including a furnace having a main inlet for receiving cooled air suctioned from a living area, a heating mechanism for heating the cooled air suctioned from the living area, a main outlet for delivering air to the living area which is heated by the heating mechanism, and an exhaust vent coupled to the furnace for expelling air associated with the generation of heat by the heat mechanism with such expelled air not being fit for channeling to the living air via the outlet. Next provided is a housing which divides the exhaust vent into a lower portion and an upper portion. The housing has an auxiliary inlet in communication with the living area for receiving the cooled air therefrom and an auxiliary outlet in communication with the living area for expelling air thereto. Lastly, a heat transfer mechanism includes a pipe formed in the shape of a helix. In use, the heat transfer mechanism is adapted to transfer heat from the air expelled through the exhaust vent to the air situated within the housing such that the heated air may be directed to the living area.  
         [0019]     Air-heating gas stoves; air-moisteners; ovens. The stove is enclosed within a casing h, which is provided with inlet openings m for air to be heated, outlets n for heated air and gaseous pro-ducts of combustion, a door leading to the oven d, and tubes i for introducing water to the water seals f. Within the casing is a receptacle a, forming a grate or a space for the gas burner, above which are placed in succession the hollow drums b, c, e. Each drum has at its bottom a short open-ended tube dipping into a water seal-mounted on the top of the next lower drum. The largest drum is provided with the hot chamber d for baking, boiling, warming, or the like. If gas is used, the heated air and products of combustion, mixed with water vapour, escape together into the air, and may be drawn off by a fan rotated by the escaping vapours. If solid fuel is used, the heated air and products of combustion are kept separate, the latter being led to a flue.  
         [0020]     Water-tube boilers; combined with industrial furnaces, kilns,- and ovens; generating by indirect contact of heated gases. In a water-tube boiler heated by the waste gases from an industrial furnace, kiln, or oven, the gases are drawn through the passes among the tubes by a fan so operating that, when the boiler is working at rated capacity, the weight of gas drawn per sq. ft. of average flow area is at least two thousand pounds per hour, and the desired draught is maintained at the outlet from the furnace &amp;c. The Babcock-Wilcox boiler shown has additional rows of tubes and is fitted with vertical baffles  9  arranged so as to give three passes of equal sectional areas. The waste gases enter at the bottom  10  of the front pass and are drawn through the boiler by a fan  13 . The inlet  10  may be connected to a by-pass flue leading from the stack of a regenerative open-hearth furnace, and the gases may be discharged through a branch flue  21  opening into the stack, dampers being provided to control the flow of gases into and from the boiler. In a Babcock-Wilcox boiler having 18 transverse rows of tubes and  10  vertical rows and fitted with vertical baffles giving four passes each of 12.2 sq. ft. area, the gases are drawn at a rate of 23,400 lb. per sq. ft. per hour, the draught produced by the fan being 3.1 inches, which, allowing a drop of say 1.32 inches in the boiler, gives a draught of about 1.5 inches at the furnace outlet.  
         [0021]     While these heat exchange systems may be suitable for the purposes for which they were designed, they would not be as suitable for the purposes of the present invention, as hereinafter described.  
       SUMMARY OF THE PRESENT INVENTION  
       [0022]     The present invention relates generally to heating systems and, more specifically, to a heating recovery apparatus designed to recover lost heat from a primary heating source. The apparatus is used in conjunction with a boiler and/or furnace. The apparatus includes a jacket for a flue having conduit clad in heatsinks and a fan moving air across a channel and discharged into a plenum. The apparatus also includes a fan positioned within to expel gases. An exteriorly positioned fan control mechanism with temperature display is in communication with temperature sensors and serves to activate the fans.  
         [0023]     A primary object of the present invention is to provide a heat recovery apparatus able to over come the short comings of the prior art.  
         [0024]     Another secondary object of the present invention is to provide a heat recovery apparatus that recovers lost heat from a conventional gas furnace or heating unit.  
         [0025]     Another object of the present invention is to provide a heat recovery apparatus that is retrofitted into the chimney and plenum of a conventional gas furnace or heating unit.  
         [0026]     Yet another object of the present invention is to provide a heat recovery apparatus that utilizes conduit having a plurality of heat sinks positioned on an external surface thereof for releasing heat though the plurality of heat sinks.  
         [0027]     Still yet another object of the present invention is to provide a heat recovery apparatus that utilizes dual fans with independent themisters to control the heat and carbon monoxide release from within the heat extractor.  
         [0028]     Another object of the present invention is to provide a heat recovery apparatus that utilizes the plurality of fans control the heat release.  
         [0029]     A further object of the present invention is to provide a heat recovery apparatus wherein a user definable temperature control is connected to the plurality of fans for controlling the activation and operation thereof.  
         [0030]     Still another object of the present invention is to provide a heat recovery apparatus that improves the efficiency and reduces the cost of existing heating systems.  
         [0031]     Still another object of the present invention is to provide a heat recovery apparatus that provides a safe and economical means to improve a heating system.  
         [0032]     Another object of the present invention is to provide a heat recovery apparatus that is simple and easy to use.  
         [0033]     A still further object of the present invention is to provide a heat recovery apparatus that is economical in cost to manufacture.  
         [0034]     Additional objects of the present invention will appear as the description proceeds.  
         [0035]     The present invention overcomes the shortcomings of the prior art by providing a heat recovery system that recovers lost heat from a conventional gas furnace or heating unit by means that utilizes dual fans with independent themisters, digital temperature readings, and user settings to control the heat and carbon monoxide release.  
         [0036]     The foregoing and other objects and advantages will appear from the description to follow. In the description reference is made to the accompanying drawings, which forms a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. These embodiments will be described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and that structural changes may be made without departing from the scope of the invention. In the accompanying drawings, like reference characters designate the same or similar parts throughout the several views.  
         [0037]     The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is best defined by the appended claims.  
     
    
     BRIEF DESCRIPTION OF THE DRAWING FIGURES  
       [0038]     In order that the invention may be more fully understood, it will now be described, by way of example, with reference to the accompanying drawing in which:  
         [0039]      FIG. 1  is an illustrative view of the heat recovery apparatus of the present invention in use;  
         [0040]      FIG. 2  is a perspective view of the heat recovery apparatus of the present invention;  
         [0041]      FIG. 3  is an exploded view of the heat recovery apparatus of the present invention;  
         [0042]      FIG. 4  is a sectional view of the heat recovery apparatus of the present invention;  
         [0043]      FIG. 5  is a perspective view of the fan control box  13  of the heat recovery apparatus  10  of the present invention;  
         [0044]      FIG. 6  is a sectional view of the heat recovery apparatus of the present invention; and  
         [0045]      FIG. 7  is a sectional view of the heat recovery apparatus of the present invention.  
     
    
     DESCRIPTION OF THE REFERENCED NUMERALS  
       [0046]     Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views, the Figures illustrate the heat recovery apparatus of the present invention. With regard to the reference numerals used, the following numbering is used throughout the various drawing Figures.  
         [0047]      10  heat recovery apparatus of the present invention  
         [0048]      11  housing  
         [0049]      12  fan controls  
         [0050]      13  fan control box  
         [0051]      14  temperature readout  
         [0052]      15  face of fan control box  
         [0053]      16  electric furnace  
         [0054]      18  plenum  
         [0055]      20  electric connection  
         [0056]      22  condensate drain  
         [0057]      24  chimney/PVC pipe  
         [0058]      26  chimney fan  
         [0059]      28  insulated coating  
         [0060]      30  heat sinks  
         [0061]      31  first opening  
         [0062]      32  conduit  
         [0063]      33  second opening  
         [0064]      34  condensate trap  
         [0065]      36  main thermistor  
         [0066]      38  plenum fan  
         [0067]      40  plenum insert  
         [0068]      42  plenum thermometer  
         [0069]      44  chimney thermometer  
         [0070]      46  first end of heat recovery apparatus  
         [0071]      48  second end of heat recovery apparatus  
         [0072]      50  channel  
         [0073]      51  vents around chamber  
       DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
       [0074]     The following discussion describes in detail one embodiment of the invention (and several variations of that embodiment). This discussion should not be construed, however, as limiting the invention to those particular embodiments; practitioners skilled in the art will recognize numerous other embodiments as well. For definition of the complete scope of the invention, the reader is directed to appended claims.  
         [0075]     Turning now descriptively to the drawings, in which similar reference characters denote similar elements throughout the several views,  FIGS. 1-7  illustrate the heat recovery apparatus of the present invention which is indicated generally by the numeral  10 .  
         [0076]      FIG. 1  is an illustrative view of the heat recovery apparatus  10  of the present invention in use. Typical home heating systems include a primary heat source  16  connected to a plenum  18  and further includes an conduit  24  for expelling gases produced during the process of generating heat. The primary heating source  16  is shown herein as an electric furnace. However, the primary heat source being an electric furnace is described for purposes of example only and the primary heat source  16  may include any electric, gas or oil powered heat source. The electric furnace  16  generates the heat used to warm the home. The plenum  18  is further connected to a distribution network  17  for distributing the heat throughout a structure. Preferably, the distribution network is formed by at least one of a plurality of ducts or pipes connected in a predetermined arrangement.  
         [0077]     The heat recover apparatus  10  of the present invention is connected between each of the primary heat source  16 , the expulsion conduit  48 , and the plenum  18 . The primary purpose of the apparatus  10  of the present invention is to recover additional heat that is a byproduct of the heat generation process. Typically, the additional heat is mixed with harmful gases which are expelled via the expulsion conduit  48 . The present invention recovers this additional heat while still expelling the harmful gases produced by the primary heat source.  
         [0078]     The heat recovery apparatus  10  includes a housing  11 . The housing  11  has a first end  46  and a second end  48 , opposite said first end  46 . The first end  46  of the housing  11  is attached to a chimney or PVC pipe  24  for expelling harmful gases therefrom. The second end  48  of the housing  11  is attached to the primary heat source  16 . A channel  50  extends from the external side of the housing  11  for connecting the housing  11  to the plenum  18 . The plenum  18  aids in injecting the heat into the home for warmth.  
         [0079]     As will be discussed hereinafter, the primary heat source  16  produces heat that is captured in the plenum  18  for distribution via the network  17 . Simultaneously, the byproduct of the heat production process is received within the housing  11  of the heat recovery apparatus  10  of the present invention. The additional heat contained in the byproduct will be extracted and further inserted, via the channel  50 , into the plenum  18  for further distribution via the network  17 . The process of recovering the additional heat will be discussed hereinafter with specific respect to  FIGS. 2-7 . While recovering the heat, the apparatus  10  of the present invention includes a mechanism for expelling any harmful gas or particulate matter via the chimney  24  resulting from the heat generation process.  
         [0080]      FIG. 2  is a perspective view of the heat recovery apparatus  10  of the present invention. The heat recovery apparatus  10  includes the housing  11 . The first end  46  of the housing  11  is opposite from the second end  48  of the housing  11 . The first end  46  of the housing  11  is connected to the chimney or PVC pipe  24  and is used to expel carbon monoxide and other harmful gases from the home. The second end  48  of the housing  11  is attached to the primary heat source  16 , hereinafter referred to as the electric furnace. The electric furnace  16  generates the heat used to warm the home. An electrical input  20  positioned on an external side of the furnace  16  supplies the electricity to the furnace  16 . The housing  11  of the apparatus  10  of the present invention is further connected to the plenum  18  via the channel  50 . The plenum  18  aids in injecting the heat produced by the furnace  16  into the home for warmth. As will be discussed hereinafter with specific reference to  FIG. 4 , the housing includes a plenum fan  38  and a chimney fan  26 . The plenum fan  38  draws the heat in the housing into the plenum  18  whereas the chimney fan  26  causes any harmful gases to be removed from within the housing.  
         [0081]     The apparatus  10  of the present invention is selectively controlled by the user. A control box  13  is positioned on an external surface of the housing  11  and includes a plurality of control mechanisms thereon. The control box  13  includes a plurality of temperature read outs  14  and a plurality of fan controls  12 . These fan controls  12  allow the user to determine the intensity and amount of heat dispersed into the structure by the plenum fan  38  as well as the activation of the chimney fan  26  for removal of gases from within the housing. Each fan  26  and  38  has its own individual temperature read out  14 . The temperature read out  14  indicates the temperature of the air going through each fan  26  and  38 .  
         [0082]      FIG. 3  is an exploded view of the heat recovery apparatus  10  of the present invention. The heat recovery apparatus  10  includes the housing  11 . The first end  46  of the housing  11  is opposite from the second end  48  of the housing  11 . The first end  46  of the housing  11  is connected to the chimney or PVC pipe  24  and is used to expel carbon monoxide and other harmful gases from the home. The second end  48  of the housing  11  is attached to the primary heat source  16 , hereinafter referred to as the electric furnace. The electric furnace  16  generates the heat used to warm the home. An electrical input  20  positioned on an external side of the furnace  16  supplies the electricity to the furnace  16 . The housing  11  of the apparatus  10  of the present invention is further connected to the plenum  18  via the channel  50 . The plenum  18  aids in injecting the heat produced by the furnace  16  into the home for warmth. As will be discussed hereinafter with specific reference to  FIG. 4 , the housing includes a plenum fan  38  and a chimney fan  26 . The plenum fan  38  draws the heat in the housing into the plenum  18  whereas the chimney fan  26  causes any harmful gases to be removed from within the housing.  
         [0083]     The apparatus  10  of the present invention is selectively controlled by the user. A control box  13  is positioned on an external surface of the housing  11  and includes a plurality of control mechanisms thereon. The control box  13  includes a plurality of temperature read outs  14  and a plurality of fan controls  12 . These fan controls  12  allow the use to determine the intensity and amount of heat dispersed into the structure by the plenum fan  38  as well as the activation of the chimney fan  26  for removal of gases from within the housing. Each fan  26  and  38  has its own individual temperature read out  14 . The temperature read out  14  indicates the temperature of the air going through each fan  26  and  38 .  
         [0084]     A conduit  32 , as shown in  FIG. 4 , is located inside the housing  11 . As the heat is released, the air and gases inside the conduit  32  are cooled. The cooling air and gases causes condensate (moisture) to build up on the inside of the conduit  32 . This condensate then flows down the conduit  32  into a condensate drain trap  34 , shown in  FIG. 4  and into a condensate drain  22 , which is external to the housing  11 .  
         [0085]      FIG. 4  is a sectional view of the heat recovery apparatus  10  of the present invention. The heat recovery apparatus  10  includes the housing  11 . The housing  11  has an insulated coating  28  surrounding it. The first end  46  of the housing  11  is connected to the chimney  24  and is used to expel carbon monoxide and other harmful gases produced during the heat production process. The second end  48  of the housing  11  is connected to the electric furnace  16  and collects gas produced thereby during the heating process. The housing  11  further includes a conduit  32  having a first opening  33  adjacent the first end  46  of the housing and a second opening  31 , adjacent the second end  48 . The conduit  32  is thus connected between an opening of the first end  46  and an opening of the second end  48 . The conduit  32  includes a plurality of heat sinks  30  positioned on exterior surface thereof and extending into the interior compartment of the housing  11 . The conduit  32  further includes a main thermistor positioned within the second opening  31  adjacent the second end  48  of the housing  11 . Additionally, extending from a section of the conduit adjacent to the second end is a condensate trap  34  which further connects to a condensate drain  34 . The condensate trap  34  extends from an aperture adjacently located to the second opening  31  of the conduit  32 .  
         [0086]     The apparatus  10  of the present invention further includes the plenum fan  38  positioned within the channel  50  which connects the housing  11  to the plenum  18 . A plenum insert  40 , for securing the channel  50  to the plenum  18  is positioned between the plenum fan  38  and opening to the plenum  18 . A plenum thermometer  42  is positioned within the channel  50  adjacent the plenum fan  38  and is able to sense the temperature of air passing therethrough.  
         [0087]     Positioned adjacent the first end  46  of the housing  11  and within first opening  33  of the conduit  32  is the chimney fan  26 . The chimney fan  26  expels the carbon monoxide and other undesirable gases into the chimney  24  and out from the home. A chimney thermometer  44  is positioned within the conduit  32  for sensing the temperature of the air being expelled thereby.  
         [0088]     The control box  13  is positioned on the exterior surface of the housing  11  and includes fan controls  12  and temperature displays  14 . Each of the plenum fan  38  and the chimney fan  26  are electrically connected to the control box  13  and are controlled by a respective one of the fan controls  12 . Additionally, the thermometers  42 ,  44  are also connected to the control box  13  and further connected to the temperature displays  14 . The main thermistor  36  is also connected to the control box  13  which includes circuitry for operating the apparatus  10  of the present invention. Specifically, when the furnace  16  produces heat the thermistor  36  becomes electrically conductive and completes a circuit which causes the heat recovery apparatus  10  to begin operation by activating each of the plenum fan  38  and the chimney fan  26 .  
         [0089]     Upon activation of the apparatus  10 , the conduit  32  at the second end  48  of the housing collects the gas produced by the furnace  16 . The chimney fan  26  helps draw the gas produced by the furnace  16  through the conduit  32 . The temperature of the heat sinks  30  increases as the gas passes along the length of the conduit  32 . As the gas flows from inside the conduit  32 , the heat is absorbed and released by a plurality of heat sinks  30 . The heat sinks  30  extend outwardly along the length of the conduit  32  and the release heat into the inner compartment of the housing  11 . The plenum fan  38  transfers the heat released by the heat sinks  30  into the plenum  18  to further support the heating of the home. The plenum thermometer  42  senses the temperature of the air passing through the channel  50  and provides a signal representing a temperature value to the control box  13 . The received plenum temperature value is displayed in the temperature read out  14  located on the fan control box  13 . The fan control box  13  also includes the plurality of fan controls  12  to determine the speed of the plenum fan  38  which will optimize the amount of heat injected into the home.  
         [0090]     The chimney fan  26  continues to draw the gas along the length of the conduit  32  until it reaches the first opening  33 . The chimney fan  26  then causes the gas to be expelled from the structure via the chimney  24  thereby removing any hazardous gas and/or particulate matter. The gas passes around the chimney thermometer  44  which senses the temperature of thereof and sends a signal representing a temperature value to the fan control box  13 . The temperature of the air passing through the chimney fan  26  is displayed in the temperature read out  14  located on the fan control box  13 .  
         [0091]     As the heat is released, the air and gases inside the conduit  32  is cooled. The cooling air and gases causes condensate (moisture) to build up on the inside of the conduit  32 . Gravity causes the condensate to flow downward in the direction of the second end of the housing  11  along the conduit  32  and into the condensate drain trap  34 . As the condensate collects in the trap  34 , the condensate moves into the condensate drain  22 , which is external to the housing  11 , and further out from the housing.  
         [0092]      FIG. 5  is a perspective view of the fan control box  13  of the heat recovery apparatus  10  of the present invention. The fan control box  13  shown herein is rectangular in shape. However, the fan control box  13  can be of any geometric shape. The face  15  of the fan control box  13  includes two temperature read out displays  14 . Each temperature read out  14  represents the one of the fans  26  and  38 . The temperature read out  14  shows the temperature of the air passing through the fans  26  and  38 . Located next to each temperature read out  14  is the fan control  12 . Each fan control  12  corresponds to one of the two fans  26  and  38 . The fan control  12  determines the speed of the plenum fan  38  to optimize the amount of heat injected into the home and the speed of the chimney fan  26  to optimize the amount of carbon monoxide and other gases expulsion from the home.  
         [0093]      FIG. 6  is a sectional view of the heat recovery apparatus  10  of the present invention. The heat recovery apparatus  10  includes the housing  11 . The housing  11  has an insulated coating  28  surrounding it. The first end  46  of the housing  11  is connected to the chimney  24  and is used to expel carbon monoxide and other harmful gases produced during the heat production process. The second end  48  of the housing  11  is connected to the electric furnace  16  and collects gas produced thereby during the heating process. The housing  11  further includes a conduit  32  having a first opening  33  adjacent the first end  46  of the housing and a second opening  31 , adjacent the second end  48 . The conduit  32  is thus connected between an opening of the first end  46  and an opening of the second end  48 . The conduit  32  includes a plurality of heat sinks  30  positioned on exterior surface thereof and extending into the interior compartment of the housing  11 . The conduit  32  further includes a main thermistor positioned within the second opening  31  adjacent the second end  48  of the housing  11 . Additionally, extending from a section of the conduit adjacent to the second end is a condensate trap  34  which further connects to a condensate drain  34 . The condensate trap  34  extends from an aperture adjacently located to the second opening  31  of the conduit  32 .  
         [0094]     The apparatus  10  of the present invention further includes the plenum fan  38  positioned within the channel  50  which connects the housing  11  to the plenum  18 . A plenum insert  40 , for securing the channel  50  to the plenum  18  is positioned between the plenum fan  38  and opening to the plenum  18 . A plenum thermometer  42  is positioned within the channel  50  adjacent the plenum fan  38  and is able to sense the temperature of air passing therethrough.  
         [0095]     Positioned adjacent the first end  46  of the housing  11  and within first opening  33  of the conduit  32  is the chimney fan  26 . The chimney fan  26  expels the carbon monoxide and other undesirable gases into the chimney  24  and out from the home. A chimney thermometer  44  is positioned within the conduit  32  for sensing the temperature of the air being expelled thereby.  
         [0096]     The control box  13  is positioned on the exterior surface of the housing  11  and includes fan controls  12  and temperature displays  14 . Each of the plenum fan  38  and the chimney fan  26  are electrically connected to the control box  13  and are controlled by a respective one of the fan controls  12 . Additionally, the thermometers  42 ,  44  are also connected to the control box  13  and further connected to the temperature displays  14 . The main thermistor  36  is also connected to the control box  13  which includes circuitry for operating the apparatus  10  of the present invention. Specifically, when the furnace  16  produces heat the thermistor  36  becomes electrically conductive and completes a circuit which causes the heat recovery apparatus  10  to begin operation by activating each of the plenum fan  38  and the chimney fan  26 .  
         [0097]     Upon activation of the apparatus  10 , the conduit  32  at the second end  48  of the housing collects the gas produced by the furnace  16 . The chimney fan  26  helps draw the gas produced by the furnace  16  through the conduit  32 . The temperature of the heat sinks  30  increases as the gas passes along the length of the conduit  32 . As the gas flows from inside the conduit  32 , the heat is absorbed and released by a plurality of heat sinks  30 . The heat sinks  30  extend outwardly along the length of the conduit  32  and the release heat into the inner compartment of the housing  11 . The plenum fan  38  transfers the heat released by the heat sinks  30  into the plenum  18  to further support the heating of the home. The plenum thermometer  42  senses the temperature of the air passing through the channel  50  and provides a signal representing a temperature value to the control box  13 . The received plenum temperature value is displayed in the temperature read out  14  located on the fan control box  13 . The fan control box  13  also includes the plurality of fan controls  12  to determine the speed of the plenum fan  38  which will optimize the amount of heat injected into the home.  
         [0098]     The chimney fan  26  continues to draw the gas along the length of the conduit  32  until it reaches the first opening  33 . The chimney fan  26  then causes the gas to be expelled from the structure via the chimney  24  thereby removing any hazardous gas and/or particulate matter. The gas passes around the chimney thermometer  44  which senses the temperature of thereof and sends a signal representing a temperature value to the fan control box  13 . The temperature of the air passing through the chimney fan  26  is displayed in the temperature read out  14  located on the fan control box  13 .  
         [0099]     As the heat is released, the air and gases inside the conduit  32  is cooled. The cooling air and gases causes condensate (moisture) to build up on the inside of the conduit  32 . Gravity causes the condensate to flow downward in the direction of the second end of the housing  11  along the conduit  32  and into the condensate drain trap  34 . As the condensate collects in the trap  34 , the condensate moves into the condensate drain  22 , which is external to the housing  11 , and further out from the housing.  
         [0100]      FIG. 7  is a sectional view of the heat recovery apparatus  10  of the present invention. The heat recovery apparatus  10  includes the housing  11 . The housing  11  has an insulated coating  28  surrounding it. The first end  46  of the housing  11  is connected to the chimney  24  and is used to expel carbon monoxide and other harmful gases produced during the heat production process. The second end  48  of the housing  11  is connected to the electric furnace  16  and collects gas produced thereby during the heating process. The housing  11  further includes a conduit  32  having a first opening  33  adjacent the first end  46  of the housing and a second opening  31 , adjacent the second end  48 . The conduit  32  is thus connected between an opening of the first end  46  and an opening of the second end  48 . The conduit  32  includes a plurality of heat sinks  30  positioned on exterior surface thereof and extending into the interior compartment of the housing  11 . The conduit  32  further includes a main thermistor positioned within the second opening  31  adjacent the second end  48  of the housing  11 . Additionally, extending from a section of the conduit adjacent to the second end is a condensate trap  34  which further connects to a condensate drain  34 . The condensate trap  34  extends from an aperture adjacently located to the second opening  31  of the conduit  32 .  
         [0101]     The apparatus  10  of the present invention further includes the plenum fan  38  positioned within the channel  50  which connects the housing  11  to the plenum  18 . A plenum insert  40 , for securing the channel  50  to the plenum  18  is positioned between the plenum fan  38  and opening to the plenum  18 . A plenum thermometer  42  is positioned within the channel  50  adjacent the plenum fan  38  and is able to sense the temperature of air passing therethrough.  
         [0102]     Positioned adjacent the first end  46  of the housing  11  and within first opening  33  of the conduit  32  is the chimney fan  26 . The chimney fan  26  expels the carbon monoxide and other undesirable gases into the chimney  24  and out from the home. A chimney thermometer  44  is positioned within the conduit  32  for sensing the temperature of the air being expelled thereby.  
         [0103]     The control box  13  is positioned on the exterior surface of the housing  11  and includes fan controls  12  and temperature displays  14 . Each of the plenum fan  38  and the chimney fan  26  are electrically connected to the control box  13  and are controlled by a respective one of the fan controls  12 . Additionally, the thermometers  42 ,  44  are also connected to the control box  13  and further connected to the temperature displays  14 . The main thermistor  36  is also connected to the control box  13  which includes circuitry for operating the apparatus  10  of the present invention. Specifically, when the furnace  16  produces heat the thermistor  36  becomes electrically conductive and completes a circuit which causes the heat recovery apparatus  10  to begin operation by activating each of the plenum fan  38  and the chimney fan  26 .  
         [0104]     Upon activation of the apparatus  10 , the conduit  32  at the second end  48  of the housing collects the gas produced by the furnace  16 . The chimney fan  26  helps draw the gas produced by the furnace  16  through the conduit  32 . The temperature of the heat sinks  30  increases as the gas passes along the length of the conduit  32 . As the gas flows from inside the conduit  32 , the heat is absorbed and released by a plurality of heat sinks  30 . The heat sinks  30  extend outwardly along the length of the conduit  32  and the release heat into the inner compartment of the housing  11 . The plenum fan  38  transfers the heat released by the heat sinks  30  into the plenum  18  to further support the heating of the home. The plenum thermometer  42  senses the temperature of the air passing through the channel  50  and provides a signal representing a temperature value to the control box  13 . The received plenum temperature value is displayed in the temperature read out  14  located on the fan control box  13 . The fan control box  13  also includes the plurality of fan controls  12  to determine the speed of the plenum fan  38  which will optimize the amount of heat injected into the home.  
         [0105]     The chimney fan  26  continues to draw the gas along the length of the conduit  32  until it reaches the first opening  33 . The chimney fan  26  then causes the gas to be expelled from the structure via the chimney  24  thereby removing any hazardous gas and/or particulate matter. The gas passes around the chimney thermometer  44  which senses the temperature of thereof and sends a signal representing a temperature value to the fan control box  13 . The temperature of the air passing through the chimney fan  26  is displayed in the temperature read out  14  located on the fan control box  13 .  
         [0106]     As the heat is released, the air and gases inside the conduit  32  is cooled. The cooling air and gases causes condensate (moisture) to build up on the inside of the conduit  32 . Gravity causes the condensate to flow downward in the direction of the second end of the housing  11  along the conduit  32  and into the condensate drain trap  34 . As the condensate collects in the trap  34 , the condensate moves into the condensate drain  22 , which is external to the housing  11 , and further out from the housing.  
         [0107]     While certain novel features of this invention have been shown and described and are pointed out in the annexed claims, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.  
         [0108]     Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic or specific aspects of this invention.