US20080105252A1 - Apparatus and method for heating an outdoor area - Google Patents
Apparatus and method for heating an outdoor area Download PDFInfo
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- US20080105252A1 US20080105252A1 US11/591,933 US59193306A US2008105252A1 US 20080105252 A1 US20080105252 A1 US 20080105252A1 US 59193306 A US59193306 A US 59193306A US 2008105252 A1 US2008105252 A1 US 2008105252A1
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- Prior art keywords
- firepit
- outdoor
- vessel
- conduits
- air
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B1/00—Stoves or ranges
- F24B1/18—Stoves with open fires, e.g. fireplaces
- F24B1/185—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion
- F24B1/188—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas
- F24B1/1885—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas the heat exchange medium being air only
- F24B1/1888—Stoves with open fires, e.g. fireplaces with air-handling means, heat exchange means, or additional provisions for convection heating ; Controlling combustion characterised by use of heat exchange means , e.g. using a particular heat exchange medium, e.g. oil, gas the heat exchange medium being air only with forced circulation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
- F24B3/00—Heaters not covered by group F24B1/00, e.g. charcoal braziers
Definitions
- This invention relates to apparatus and method for heating an outdoor area.
- Outdoor patio fireplaces, heaters, and firepits are used to heat ambient air in selected outdoor areas. These units commonly use radiant heating to heat the area surrounding such a heater. Any convective heating is primarily due to wind currents. As such, the heating effect is primarily limited to areas in close proximity to the heater.
- an outdoor firepit comprises a vessel adapted to contain a combustible material.
- a plurality of conduits is located within the vessel and is positioned to be in thermal communication with the combustible material.
- An air source forces air through the plurality of conduits and into an area surrounding the firepit.
- an apparatus for heating an outdoor area comprises a vessel adapted to contain a combustible material having an inner bowl and an outer bowl and a space therebetween.
- a plurality of conduits is located within the vessel adjacent the inner bowl and is positioned to be in thermal communication with the combustible material.
- An air source forces air through the plurality of conduits and into the outdoor area surrounding the vessel.
- a method of heating an outdoor area comprises disposing a plurality of conduits in a vessel.
- a combustible material is combusted in thermal contact with the plurality of conduits in the vessel. Air is forced through the plurality of conduits such that the air exiting the plurality of conduits heats an area surrounding the vessel.
- FIG. 1 is a cross-section view of one embodiment
- FIG. 2A is a perspective view of one illustrative example of the present invention.
- FIG. 2B is an exploded perspective view showing a flow manifold and bowl of the firepit of FIG. 2A ;
- FIG. 3A is a section view of one illustrative example of a flow conduit for use in one embodiment of the present invention.
- FIG. 3B is a side view of an exit nozzle of a flow conduit of FIG. 3A ;
- FIG. 3C is a top view of an exit nozzle of a flow conduit of FIG. 3A ;
- FIG. 4A is a section view of another illustrative embodiment of the present invention.
- FIG. 4B is a perspective view of an example flow conduit of FIG. 4A ;
- FIG. 5 is a sketch showing a non-limiting example of an air deflector in a nozzle in one embodiment
- FIG. 6 is a sketch of a dual-walled vessel having a flow conduit assembly according to one embodiment
- FIG. 7 is a sketch showing one non-limiting example of a firepit having an air-motor driven fan
- FIGS. 8A-8D show non-limiting examples of flow conduits at least partially formed in at least one wall of a firepit
- FIG. 9 shows a non-limiting example of a flow conduit arrangement
- FIG. 10 shows another non-limiting example of a flow conduit arrangement
- FIG. 11 shows yet another non-limiting example of a flow conduit arrangement.
- a firepit 1 comprises a vessel such as bowl 4 suitable for containing a combustible material 10 .
- the term bowl includes any concave vessel suitable for containing the combustible material 10 .
- Such shapes include, but are not limited to, rectangular vessels, square vessels, circular vessels, portions of oblate spheroids, and hemispherical vessels.
- Bowl 4 may be made of any suitable material for containing combusting materials. Such materials include but are not limited to, steel, stainless steel, copper, copper alloys, aluminum, aluminum alloys, ceramic, ceramic coated metal. Stone, masonry, and cement.
- combustible material includes, but is not limited to: wood, charcoal, coal, paper products, liquid and/or gas hydrocarbons, and any other suitable combustible material.
- a thermal insulating material 9 is applied to the bottom surface of bowl 4 to reduce the heat loss through the bottom of bowl 4 .
- Insulating material 9 may be applied by painting, spraying, dipping or any other suitable technique.
- Insulating material 9 may be made of a fibrous material, a cementitious material, or any other suitable material.
- An inlet tube 12 is located in the bottom surface of bowl 4 .
- Attached to inlet tube 12 is an air source 7 suitable for providing air at a positive pressure to inlet tube 12 .
- air source 7 is a squirrel cage fan providing an air flow 8 upward through inlet tube 12 .
- the term fan is intended to mean any bladed air moving device including, but not limited to, an axial fan, a centrifugal fan, an axial blower, a centrifugal blower, and any other suitable air moving device.
- a motor 11 is used to power air source 7 .
- motor 11 may be an electric motor powered by AC or DC current.
- motor 11 may be an air driven motor powered by a suitable air supply.
- Air flow 8 from air source 7 is routed through flow conduits 6 placed within bowl 4 .
- the flow conduits 6 may be part of a manifold assembly 15 (see FIGS. 2A and 2B ).
- manifold assembly 15 is removable from inlet tube 12 for ease of cleaning of the firepit and for replacement of a worn and/or damaged manifold.
- Conduits 6 may be manufactured out of any suitable material, such as, for example, steel, stainless steel, copper, copper alloys, aluminum, aluminum alloys, ceramic, and ceramic coated metal. Heat generated by the combustion of combustible material 10 in bowl 4 is conducted through the walls of conduit 6 and is heats the air flow 8 by thermal conduction and convection. Air flow 8 exits conduit 6 at nozzle 19 .
- nozzle 19 may be shaped to accelerate air flow 8 as it exits nozzle 19 .
- the accelerated air flow provides an enhanced heating effect at a substantial distance from the firepit.
- the top side 32 of conduit 19 converges toward the bottom side 33 by an angle ⁇ creating a reduced area nozzle causing the air flow 8 to accelerate at the exit of conduit 19 .
- the angle ⁇ may be in the range of about 5 degrees to about 20 degrees.
- both top side 32 and bottom side 33 may converge.
- FIG. 3C shows a top view of nozzle 19 where the sides 34 of nozzle 19 diverge at an angle ⁇ to spread the flow out to a larger horizontal zone in the vicinity of firepit 1 .
- the angle ⁇ may be in the range of about 5 degrees to about 20 degrees.
- the angles ⁇ and ⁇ may be selected such that the net cross sectional area of conduit nozzle 19 reduces toward the exit such that the air flow 8 is accelerated as it flows toward the exit of conduit nozzle 19 .
- Conduit nozzle 19 may be designed such that the exit velocity may be in the range of about 5 to about 40 feet per second.
- a deflector 30 is moveably attached by pin 31 near the exit to conduit nozzle 19 such that air flow 8 may be deflected by deflector 30 as air flow 8 exits conduit nozzle 19 .
- Any suitable air deflector and attachment method is suitable for the present invention.
- FIGS. 4A and 4B present another illustrative example of an embodiment of the present invention.
- firepit 25 has a dual-walled vessel 26 comprising an inner bowl 22 and an outer bowl 20 with a space 27 between the two bowls 22 and 20 .
- the space between the bowls may be filled with an insulating material 24 .
- Each bowl 22 , 20 may be made of a material such as the materials previously described with respect to bowl 4 of FIG. 1 .
- Each bowl 22 , 20 may be made from a different material or both bowls may be made from the same material.
- insulation 24 may be a mineral material, including but not limited to: vermiculite, perlite, sand, and any mixture of these minerals.
- insulating material 24 may be crushed fiberglass.
- a gas such as air and/or nitrogen may be used as an insulator.
- the space 27 between the bowls may be evacuated such that a vacuum exists between the bowls 22 , 20 .
- flow channel 23 may have a flange 29 attached to each side. Flange 29 facilitates attachment of flow channel 23 to inner bowl 22 .
- Such attachment technique may include, but is not limited to, seam welding, tack welding, brazing, soldering, riveting, any combination of these techniques, and any other suitable attachment method. Any number of flow channels 23 may be attached to inner bowl 22 . Alternatively, flow channel 23 may be attached to a single walled vessel as described with reference to FIG. 1 .
- FIG. 6 presents yet another non-limiting example in which the manifold assembly 15 previously described in FIG. 2A is combined with the dual-walled vessel described with respect to FIG. 4A .
- FIG. 7 presents another non-limiting example wherein an air source 50 supplies a suitable volume of air through supply line 51 to motor 11 .
- motor 11 may be an air-driven motor. Any suitable air source may be used including, but not limited to a refillable and/or replaceable storage tank and a compressor.
- FIGS. 8A-8D illustrate non-limiting examples wherein firepit 85 has a dual-walled vessel 86 having an inner bowl 81 and an outer bowl 83 .
- Inner bowl 81 has a flow channel 82 formed therein.
- Flow channel 82 may be formed using any suitable manufacturing technique.
- FIG. 8 B flow channel 82 has a plate 88 forming the remaining side to form a closed flow conduit.
- FIG. 8 C shows a modified inner bowl 83 ′ having a formed section 89 such that channel 82 and section 89 form a flow conduit.
- FIG. 8 D shows inner bowl 81 ′ formed with a channel 82 ′ that extends to outer bowl 83 such that they form a flow conduit for air flow 8 .
- Edges 84 and 84 ′ may be firmly attached to outer bowls 83 ′ and 83 respectively by welding, brazing, soldering, or any other suitable technique.
- firepit 95 has curvilinear flow conduits 90 shaped to provide additional heat transfer area for air flow 8 to pass through. This additional area provides enhanced heating of flow 8 as it passes through conduits 90 .
- FIG. 10 shows firepit 105 with flow conduits 101 having a vertically elongated cross-section as compared to the conduits described previously.
- Such a geometry may provide additional heat transfer area as compared to conduits having a substantially horizontally elongated cross-section as shown in FIGS. 1-9 .
- FIG. 11 shows firepit 115 with curved vertically elongated conduits 110 that project through the walls of bowl 111 and stand 112 .
- Such an arrangement may reduce the flow frictional losses in conduits 110 and provide enhanced heated area coverage.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
Abstract
An outdoor firepit comprises a vessel adapted to contain a combustible material. A plurality of conduits are within the vessel and are positioned to be in thermal communication with the combustible material. An air source forces air through the plurality of conduits and into an area surrounding the firepit. An apparatus for heating an outdoor area comprises a vessel adapted to contain a combustible material having an inner bowl and an outer bowl and a space therebetween. A plurality of conduits are within the vessel adjacent the inner bowl and are positioned to be in thermal communication with the combustible material. An air source forces air through the plurality of conduits and into the outdoor area surrounding the vessel.
Description
- 1. Technical Field
- This invention relates to apparatus and method for heating an outdoor area.
- 2. Description of the Related Art
- Outdoor patio fireplaces, heaters, and firepits are used to heat ambient air in selected outdoor areas. These units commonly use radiant heating to heat the area surrounding such a heater. Any convective heating is primarily due to wind currents. As such, the heating effect is primarily limited to areas in close proximity to the heater.
- There is a demonstrated need for an outdoor firepit that provides an enhanced heating area around the firepit.
- The following presents a general summary of several aspects of the present invention. This summary is not an extensive overview of the invention. It is not intended to identify key or critical elements of the invention or to limit the scope of the claims. The following summary merely presents some concepts of the invention in a general form as a prelude to the more detailed description that follows.
- In one aspect, an outdoor firepit comprises a vessel adapted to contain a combustible material. A plurality of conduits is located within the vessel and is positioned to be in thermal communication with the combustible material. An air source forces air through the plurality of conduits and into an area surrounding the firepit.
- In another aspect, an apparatus for heating an outdoor area comprises a vessel adapted to contain a combustible material having an inner bowl and an outer bowl and a space therebetween. A plurality of conduits is located within the vessel adjacent the inner bowl and is positioned to be in thermal communication with the combustible material. An air source forces air through the plurality of conduits and into the outdoor area surrounding the vessel.
- In yet another aspect, a method of heating an outdoor area comprises disposing a plurality of conduits in a vessel. A combustible material is combusted in thermal contact with the plurality of conduits in the vessel. Air is forced through the plurality of conduits such that the air exiting the plurality of conduits heats an area surrounding the vessel.
- For detailed understanding of the illustrative embodiments, reference should be made to the following detailed description, taken in conjunction with the accompanying drawings, in which like elements have been given like numerals, wherein:
-
FIG. 1 is a cross-section view of one embodiment; -
FIG. 2A is a perspective view of one illustrative example of the present invention; -
FIG. 2B is an exploded perspective view showing a flow manifold and bowl of the firepit ofFIG. 2A ; -
FIG. 3A is a section view of one illustrative example of a flow conduit for use in one embodiment of the present invention; -
FIG. 3B is a side view of an exit nozzle of a flow conduit ofFIG. 3A ; -
FIG. 3C is a top view of an exit nozzle of a flow conduit ofFIG. 3A ; -
FIG. 4A is a section view of another illustrative embodiment of the present invention; -
FIG. 4B is a perspective view of an example flow conduit ofFIG. 4A ; -
FIG. 5 is a sketch showing a non-limiting example of an air deflector in a nozzle in one embodiment; -
FIG. 6 is a sketch of a dual-walled vessel having a flow conduit assembly according to one embodiment; -
FIG. 7 is a sketch showing one non-limiting example of a firepit having an air-motor driven fan; -
FIGS. 8A-8D show non-limiting examples of flow conduits at least partially formed in at least one wall of a firepit; -
FIG. 9 shows a non-limiting example of a flow conduit arrangement; -
FIG. 10 shows another non-limiting example of a flow conduit arrangement; and -
FIG. 11 shows yet another non-limiting example of a flow conduit arrangement. - Described below are several illustrative embodiments of the present invention. They are meant as examples and not as limitations on the claims that follow. For purposes of this disclosure, the terms firepit, outdoor fireplace, patio heater, outdoor space heater, and outdoor heater are intended to mean the same.
- According to one embodiment of the present invention, see
FIGS. 1 , 2A, 2B, afirepit 1 comprises a vessel such asbowl 4 suitable for containing acombustible material 10. As used herein, the term bowl includes any concave vessel suitable for containing thecombustible material 10. Such shapes include, but are not limited to, rectangular vessels, square vessels, circular vessels, portions of oblate spheroids, and hemispherical vessels.Bowl 4 may be made of any suitable material for containing combusting materials. Such materials include but are not limited to, steel, stainless steel, copper, copper alloys, aluminum, aluminum alloys, ceramic, ceramic coated metal. Stone, masonry, and cement. The term combustible material includes, but is not limited to: wood, charcoal, coal, paper products, liquid and/or gas hydrocarbons, and any other suitable combustible material. In one embodiment, a thermal insulating material 9 is applied to the bottom surface ofbowl 4 to reduce the heat loss through the bottom ofbowl 4. Insulating material 9 may be applied by painting, spraying, dipping or any other suitable technique. Insulating material 9 may be made of a fibrous material, a cementitious material, or any other suitable material. - An
inlet tube 12 is located in the bottom surface ofbowl 4. Attached toinlet tube 12 is anair source 7 suitable for providing air at a positive pressure toinlet tube 12. In one embodiment,air source 7 is a squirrel cage fan providing anair flow 8 upward throughinlet tube 12. As used herein, the term fan is intended to mean any bladed air moving device including, but not limited to, an axial fan, a centrifugal fan, an axial blower, a centrifugal blower, and any other suitable air moving device. A motor 11 is used topower air source 7. In one embodiment, motor 11 may be an electric motor powered by AC or DC current. Alternatively, motor 11 may be an air driven motor powered by a suitable air supply. - Air flow 8 from
air source 7 is routed throughflow conduits 6 placed withinbowl 4. Theflow conduits 6 may be part of a manifold assembly 15 (seeFIGS. 2A and 2B ). In one embodiment, as shown inFIGS. 1 , 2A, and 2B,manifold assembly 15 is removable frominlet tube 12 for ease of cleaning of the firepit and for replacement of a worn and/or damaged manifold.Conduits 6 may be manufactured out of any suitable material, such as, for example, steel, stainless steel, copper, copper alloys, aluminum, aluminum alloys, ceramic, and ceramic coated metal. Heat generated by the combustion ofcombustible material 10 inbowl 4 is conducted through the walls ofconduit 6 and is heats theair flow 8 by thermal conduction and convection.Air flow 8exits conduit 6 atnozzle 19. - In one embodiment, see
FIGS. 3A-3C ,nozzle 19 may be shaped to accelerateair flow 8 as it exitsnozzle 19. The accelerated air flow provides an enhanced heating effect at a substantial distance from the firepit. In one example, seeFIG. 3 B, thetop side 32 ofconduit 19 converges toward thebottom side 33 by an angle α creating a reduced area nozzle causing theair flow 8 to accelerate at the exit ofconduit 19. The angle α may be in the range of about 5 degrees to about 20 degrees. Alternatively, bothtop side 32 andbottom side 33 may converge. -
FIG. 3C shows a top view ofnozzle 19 where thesides 34 ofnozzle 19 diverge at an angle β to spread the flow out to a larger horizontal zone in the vicinity offirepit 1. The angle β may be in the range of about 5 degrees to about 20 degrees. The angles α and β may be selected such that the net cross sectional area ofconduit nozzle 19 reduces toward the exit such that theair flow 8 is accelerated as it flows toward the exit ofconduit nozzle 19.Conduit nozzle 19 may be designed such that the exit velocity may be in the range of about 5 to about 40 feet per second. - In one illustrative embodiment, a
deflector 30 is moveably attached bypin 31 near the exit toconduit nozzle 19 such thatair flow 8 may be deflected bydeflector 30 asair flow 8 exitsconduit nozzle 19. Any suitable air deflector and attachment method is suitable for the present invention. -
FIGS. 4A and 4B present another illustrative example of an embodiment of the present invention. As shown therein,firepit 25 has a dual-walled vessel 26 comprising aninner bowl 22 and anouter bowl 20 with aspace 27 between the twobowls material 24. Eachbowl bowl 4 ofFIG. 1 . Eachbowl - In one non-limiting example,
insulation 24 may be a mineral material, including but not limited to: vermiculite, perlite, sand, and any mixture of these minerals. Alternatively, insulatingmaterial 24 may be crushed fiberglass. In yet another alternative, a gas such as air and/or nitrogen may be used as an insulator. In another alternative, thespace 27 between the bowls may be evacuated such that a vacuum exists between thebowls - As shown in
FIG. 4A ,air flow 8 is directed throughflow channels 23 along the surface ofinner bowl 22 and out throughconduit nozzle 19. One non-limiting example offlow channel 23 is shown inFIG. 4B .Flow channel 23 may have aflange 29 attached to each side.Flange 29 facilitates attachment offlow channel 23 toinner bowl 22. Such attachment technique may include, but is not limited to, seam welding, tack welding, brazing, soldering, riveting, any combination of these techniques, and any other suitable attachment method. Any number offlow channels 23 may be attached toinner bowl 22. Alternatively, flowchannel 23 may be attached to a single walled vessel as described with reference toFIG. 1 . -
FIG. 6 presents yet another non-limiting example in which themanifold assembly 15 previously described inFIG. 2A is combined with the dual-walled vessel described with respect toFIG. 4A . -
FIG. 7 presents another non-limiting example wherein anair source 50 supplies a suitable volume of air through supply line 51 to motor 11. As previously indicated, motor 11 may be an air-driven motor. Any suitable air source may be used including, but not limited to a refillable and/or replaceable storage tank and a compressor. -
FIGS. 8A-8D illustrate non-limiting examples whereinfirepit 85 has a dual-walled vessel 86 having aninner bowl 81 and anouter bowl 83.Inner bowl 81 has aflow channel 82 formed therein.Flow channel 82 may be formed using any suitable manufacturing technique. InFIG. 8 B,flow channel 82 has aplate 88 forming the remaining side to form a closed flow conduit. In another example,FIG. 8 C shows a modifiedinner bowl 83′ having a formedsection 89 such thatchannel 82 andsection 89 form a flow conduit. In yet another example,FIG. 8 D showsinner bowl 81′ formed with achannel 82′ that extends toouter bowl 83 such that they form a flow conduit forair flow 8.Edges outer bowls 83′ and 83 respectively by welding, brazing, soldering, or any other suitable technique. - In another non-limiting example, see
FIG. 9 , firepit 95 has curvilinear flow conduits 90 shaped to provide additional heat transfer area forair flow 8 to pass through. This additional area provides enhanced heating offlow 8 as it passes through conduits 90. - In even another non-limiting example,
FIG. 10 shows firepit 105 withflow conduits 101 having a vertically elongated cross-section as compared to the conduits described previously. Such a geometry may provide additional heat transfer area as compared to conduits having a substantially horizontally elongated cross-section as shown inFIGS. 1-9 . - In another non-limiting example,
FIG. 11 shows firepit 115 with curved verticallyelongated conduits 110 that project through the walls of bowl 111 and stand 112. Such an arrangement may reduce the flow frictional losses inconduits 110 and provide enhanced heated area coverage. - While various embodiments have been shown and described, various modifications and substitutions may be made thereto without departing from the scope of the invention. Accordingly, it is to be understood that the examples of this disclosure have been presented by way of illustrations and not limitation.
Claims (21)
1. An outdoor firepit, comprising:
a vessel adapted to contain a combustible material;
a plurality of conduits within the vessel and positioned to be in thermal communication with the combustible material; and
an air source forcing air through the plurality of conduits and into an area surrounding the firepit.
2. The outdoor firepit of claim 1 , wherein the plurality of conduits comprises a plurality of flow channels attached to the vessel.
3. The outdoor firepit of claim 1 , wherein the plurality of conduits comprise a manifold assembly engaging the vessel.
4. The outdoor firepit of claim 1 , wherein the each conduit further comprises a conduit nozzle proximate an exit to the conduit.
5. The outdoor firepit of claim 4 , wherein the exit velocity of the air flow is in the range of about 5 to about 40 feet per second.
6. The outdoor firepit of claim 1 , wherein the vessel is a dual-walled vessel having a space between a first wall and a second wall.
7. The outdoor firepit of claim 6 , wherein the space between the first wall and the second wall has an insulating material therein.
8. The outdoor firepit of claim 7 , wherein the space between the first wall and the second wall has a vacuum therein.
9. The outdoor firepit of claim 4 , further comprising a movable deflector attached to the nozzle.
10. The outdoor firepit of claim 1 , wherein the air source comprises a bladed air-moving device.
11. The outdoor firepit of claim 10 , wherein the air source further comprises a motor coupled to the fan.
12. The outdoor firepit of claim 1 , wherein the motor is chosen from the group consisting of: an AC motor, a DC motor, and an air motor.
13. The outdoor firepit of claim 1 , wherein the plurality of conduits comprises a plurality of flow channels at least partially formed into a wall of the vessel.
14. The outdoor firepit of claim 1 , further comprising an insulating material applied to a bottom surface of the vessel.
15. An apparatus for heating an outdoor area comprising:
a vessel adapted to contain a combustible material, the vessel having an inner bowl and an outer bowl and a space therebetween;
a plurality of conduits adjacent the inner bowl and positioned to be in thermal communication with the combustible material; and
an air source forcing air through the plurality of conduits and into the outdoor area surrounding the vessel.
16. The apparatus of claim 15 , further comprising a thermal insulating material disposed in the space between the outer bowl and the inner bowl.
17. The apparatus of claim 15 , wherein the plurality of conduits comprises a plurality of flow channels at least partially attached to the vessel.
18. The apparatus of claim 15 , wherein the plurality of conduits comprise a manifold assembly engaged with the vessel.
19. The apparatus of claim 15 , wherein the air source comprises a bladed air-moving device.
20. The apparatus of claim 19 , wherein the air source further comprises a motor wherein the motor is chosen from the group consisting of: an AC motor, a DC motor, and an air motor.
21. The apparatus of claim 15 , wherein the plurality of conduits comprises a plurality of flow channels at least partially formed into a wall of the vessel.
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US11/591,933 US20080105252A1 (en) | 2006-11-02 | 2006-11-02 | Apparatus and method for heating an outdoor area |
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US11/591,933 US20080105252A1 (en) | 2006-11-02 | 2006-11-02 | Apparatus and method for heating an outdoor area |
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US11/591,933 Abandoned US20080105252A1 (en) | 2006-11-02 | 2006-11-02 | Apparatus and method for heating an outdoor area |
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US20080236564A1 (en) * | 2007-03-28 | 2008-10-02 | Constantin Burtea | Wire mesh burner plate for a gas oven burner |
US20080241776A1 (en) * | 2007-03-28 | 2008-10-02 | Constantin Burtea | Infrared emitting gas burner |
ITMO20100159A1 (en) * | 2010-06-04 | 2011-12-05 | Aldo Costantini | STRUCTURE FOR THE FIREPLACE OF A CHIMNEY |
US20120210994A1 (en) * | 2011-02-23 | 2012-08-23 | Mike Peter Gulotta | Apparatus and method for heat distribution from gas fire |
US8637792B2 (en) | 2011-05-18 | 2014-01-28 | Prince Castle, LLC | Conveyor oven with adjustable air vents |
USD760880S1 (en) * | 2013-11-28 | 2016-07-05 | Bond Manufacturing Co., Inc. | Outdoor heater |
USD765231S1 (en) * | 2015-08-05 | 2016-08-30 | Global Outdoors, Inc. | Fire pit with height-adjustable legs |
USD774172S1 (en) * | 2014-07-11 | 2016-12-13 | Blue Rhino Global Sourcing, Inc. | Fire pit |
USD777314S1 (en) * | 2012-10-09 | 2017-01-24 | RWF Sales & Marketing, LLC | Combustible artificial firelog assembly |
USD844125S1 (en) | 2017-12-20 | 2019-03-26 | Global Outdoors, Inc. | Fire pit with height-adjustable legs |
US20200326074A1 (en) * | 2019-04-15 | 2020-10-15 | Prakti Pte. Ltd. | Air flow control system and uses thereof in apparatus for combustion of solid fuels |
USD926950S1 (en) | 2019-08-16 | 2021-08-03 | Breeo, LLC | Fire pit |
US11278153B2 (en) | 2019-08-16 | 2022-03-22 | Breeo, LLC | Outdoor fire pit and post holder |
USD954921S1 (en) | 2021-04-30 | 2022-06-14 | Breeo, LLC | Air inlet assembly for fire pit |
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US20080241776A1 (en) * | 2007-03-28 | 2008-10-02 | Constantin Burtea | Infrared emitting gas burner |
US7717704B2 (en) * | 2007-03-28 | 2010-05-18 | Prince Castle, Inc. | Wire mesh burner plate for a gas oven burner |
US20080236564A1 (en) * | 2007-03-28 | 2008-10-02 | Constantin Burtea | Wire mesh burner plate for a gas oven burner |
ITMO20100159A1 (en) * | 2010-06-04 | 2011-12-05 | Aldo Costantini | STRUCTURE FOR THE FIREPLACE OF A CHIMNEY |
US20120210994A1 (en) * | 2011-02-23 | 2012-08-23 | Mike Peter Gulotta | Apparatus and method for heat distribution from gas fire |
US8637792B2 (en) | 2011-05-18 | 2014-01-28 | Prince Castle, LLC | Conveyor oven with adjustable air vents |
USD777314S1 (en) * | 2012-10-09 | 2017-01-24 | RWF Sales & Marketing, LLC | Combustible artificial firelog assembly |
USD760880S1 (en) * | 2013-11-28 | 2016-07-05 | Bond Manufacturing Co., Inc. | Outdoor heater |
USD792567S1 (en) | 2014-07-11 | 2017-07-18 | Blue Rhino Global Sourcing, Inc. | Fire pit |
USD774172S1 (en) * | 2014-07-11 | 2016-12-13 | Blue Rhino Global Sourcing, Inc. | Fire pit |
USD765231S1 (en) * | 2015-08-05 | 2016-08-30 | Global Outdoors, Inc. | Fire pit with height-adjustable legs |
USD844125S1 (en) | 2017-12-20 | 2019-03-26 | Global Outdoors, Inc. | Fire pit with height-adjustable legs |
US20200326074A1 (en) * | 2019-04-15 | 2020-10-15 | Prakti Pte. Ltd. | Air flow control system and uses thereof in apparatus for combustion of solid fuels |
USD926950S1 (en) | 2019-08-16 | 2021-08-03 | Breeo, LLC | Fire pit |
USD927659S1 (en) | 2019-08-16 | 2021-08-10 | Breeo, LLC | Fire pit |
US11278153B2 (en) | 2019-08-16 | 2022-03-22 | Breeo, LLC | Outdoor fire pit and post holder |
US11363912B2 (en) | 2019-08-16 | 2022-06-21 | Breeo, LLC | Outdoor fire pit and post holder |
USD956193S1 (en) * | 2019-08-16 | 2022-06-28 | Breeo, LLC | Fire pit |
USD979725S1 (en) | 2019-08-16 | 2023-02-28 | Breeo, LLC | Fire pit |
USD1004062S1 (en) * | 2019-08-16 | 2023-11-07 | Breeo, LLC | Fire pit |
USD954921S1 (en) | 2021-04-30 | 2022-06-14 | Breeo, LLC | Air inlet assembly for fire pit |
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