Patent Abstract:
The &#34;Fireplace Heater Unit&#34; conveys fireplace heat to the atmosphere through the means of hot water and steam. Steam pressure build-up is controlled by a regulator that releases steam through a nozzle at the proper pressure. This controlled steam is put to work turning a simple turbine which transmits to a fan (blower) and a pulley.

Full Description:
SUMMARY 
     The &#34;Fireplace Heater Unit&#34; is made up of pipes and pipe fittings that are filled with water and inclosed at both ends by a sheet metal shroud or heater box. The shrouds have cold air intake openings at the bottom and discharge openings near the top. Hot water cross-connect piping gathers heat from the fireplace and transfers it to the air inside the shrouds. The hot air is then discharged into the atmosphere by fans. Piping above the water level is designated as steam piping. The steam build up is controlled by a pressure regulator that releases steam to a simple turbine. The turning action of the turbine is transmitted through a shaft to the fans. These fans discharge the hot air gathered by the shroud. Used steam is exhausted up the chimney or vent as a feeder tank replenishes the water level of the system. A safety valve is installed on the steam crossconnect piping for safe household use. Also, a removable pulley is attached to the shaft for the purpose of driving other equipment. 
    
    
     DESCRIPTION OF DRAWINGS 
     Two sheets of drawings are enclosed. 
     Sheet one is composed of FIG. 1 which is an arrangement view showing basic features of the invention. This is the only view showing the feeder tank. Sheet 2 is made up of FIGS. 2, 3 and 4. 
     FIG. 2 is a plan view of the invention excluding the feeder tank. 
     FIG. 3 is an elevation view taken at section 3--3 (from FIG. 2). 
     FIG. 4 is a detail pulled out to show the shaft supports and pillow block. 
    
    
     DETAILED DESCRIPTION 
     Numerals 1 and 2 of FIG. 1 are the sheet metal shrouds. There are square intake openings at the bottom for cold air entrance into the system. Numeral 37 of FIG. 3 shows a sheet metal closure used to route cold air to the rear of the shroud. The shrouds have circular cutouts near the top which act as hot air discharge openings. A clearance hole is put in each shroud for the shaft (#33) and piping (numbers 32 and 39). The piping (numbers 3,8, 13,32,38,39) is composed of standard threaded pipe joined together with 90 degree elbows (#5), tees(#4), valves (10 &amp; 11), unions (40), and reducers (6 &amp; 7), using appropriate pipe compound. Numerals 9 and 22 are threaded pipe plugs shown throughout the system. The system is filled with water to a level below the centerline of number 32. Filling is accomplished by removing cap (25) of FIG. 1 and filling tank (24) to within one inch of the top. The tank is joined to the system by tubing (21 of FIG. 1). This tubing is connected to the tank by number 23, a threaded connector. A threaded check valve (20) is installed to prevent flow of hot water into the tank (24). The tank is equipped with a float (30), a stem (29), a platform (28), and a figurine (27). As the water level in the tank arrive at a place in need of refilling, the man&#39;s hand will rest on the water bucket handle (26). 
     Numeral 39 of FIG. 2 shows the hot water cross-connect pipe. Branching from this is numeral 38 of FIG. 3, which is plugged with number 22. Numeral 38 helps support the grate (31) and also absorbs much heat as it is directly under the fire. The rear of the grate rests on the hot water cross-connect pipe (39). The grate is to be removable for easy access to cleaning area. Numeral 3 is the main steam supplier. Hot water is turned to steam, which moves up and through the reducers (6&amp;7) to the pressure regulator (10). 
     The pressure regulator is set to release steam at approximately 25 PSI. When this pressure is reached, steam is released to nozzle (13) and enters a sheet metal turbine box (16). The nozzle is secured and sealed to the turbine box (16) by number 36, a threaded connector. Now the steam strikes the sheet metal blades of the turbine (15) and starts the shaft (33) rotating. (The turbine body is welded to the shaft) Two seals, shown as number 14, prevent steamescape from the turbine box. These seals are attached to the shaft by set screws. Used steam is exhausted up the chimney or vent through number 12, which is made partly flexible for adjustment. At the bottom of the turbine box is a drain screw (number 34 FIG. 3) which should be removed occasionally to drain any condensation. The turbinebox (16) is supported by two steel bars (Num. 35 FIG. 3) that are welded to a crossconnect pipe (32). The turbine box is tack welded to the supports (35). 
     The shaft (33) is supported by two steel angle (41) as shown in FIG. 4. The angle (41) are welded to the piping at locations shown in FIG. 2. A pillow block (number 42 FIG. 4) is bolted to the support angle. Shaft #33 is inserted in the pillow block and secured to the bearing with a set screw. A flat milled on shaft (33) provides good seating for the set screws. Two fans (17 &amp; 18) are installed on each side of the shaft near the discharge openings and are fastened to the shaft with set screws. (A flat is milled on shaft 33 for good seating of set screws.) Each fan (17&amp;18) is designed to blow air out the discharge opening. A removable pulley (19) is attached to shaft (33) on one side only with set screws. (A flat milled surface seats the set screws.) The pulley (19) is to be attached to the shaft only when it is in use. Said pulley (19) is to be used with a belt to drive other equipment as needed. 
     Numeral 8 FIG. 3 shows the steam cross-connect pipe, which has one end welded to num. 3 as shown. This steam cross-connect pipe provides an outlet for steam build up in the piping inclosed by the shrouds (1&amp;2). Connected to this cross-connect pipe (8) is a safety valve (11) which is set at approximately 40 PSI. It is held vertically and is directed away from the user.

Technology Classification (CPC): 5