1 PORTABLE GRILLING APPARATUS TECHNICAL FIELD A grilling apparatus is disclosed that can be fabricated to be portable. The apparatus 5 can, for example, take the form of a portable barbeque. The apparatus may also have a compact form. BACKGROUND ART DE 20304173, WO 2006/053693 and JP 07-171058 each disclose a portable barbeque L 0 in which charcoal grilling can be achieved whilst providing for charcoal containment. The above references to the background art do not constitute an admission that the art forms a part of the common general knowledge of a person of ordinary skill in the art. The above references are also not intended to limit the application of the apparatus as disclosed herein. L 5 SUMMARY OF THE DISCLOSURE Disclosed herein is a grilling apparatus. The apparatus can be fabricated to take the form of a portable barbeque and can, for example, have a compact form. The apparatus may comprise a grilling surface (e.g. a grate, griddle, plate, etc). The 20 grilling surface may conveniently be located at an upper part of the apparatus in use. The apparatus may comprise a heat source that in use is located within the apparatus under the grilling surface, with a side wall of the heat source being able to radiate and release heat and heated gases in a first direction. For example, the heat source can be configured to house a solid fuel (e.g. a carbon-based fuel such as charcoal, wood, coal or other combustible 25 solid matter - e.g. grain-derived pellets, etc). However, the apparatus may be reconfigured for a liquid or gaseous fuel. The apparatus may also comprise an air impulsion mechanism for supplying air to the heat source in a second direction. In accordance with the present disclosure, the the second direction is generally perpendicular to the first direction. This means, for example, that the air 30 is able to be fully dispersed through e.g. the solid fuel housed in the heat source, before heated gases are released from the heat source. For example, the air impulsion mechanism may take the form of a fan, impeller or pump, although e.g. a fan for simplicity. Conveniently, though not necessarily, the air impulsion mechanism can be located within the apparatus, so that the apparatus can be 5474491 1 (GHMailer~s P94800 All 1 2 provided as a self-contained unit. In some forms, the grilling apparatus can further comprise a reflector which is arranged with respect to the heat source, the reflector able to reflect radiation, heat and heated gases emitted by the heat source to the grilling surface in a third direction that is generally 5 perpendicular to the first direction and that is generally parallel to the second direction. Advantageously, this arrangement directs the heat and gases emitted by the heat source towards the grilling surface. In some forms, the heat source can further comprise a top (e.g. lid) that is able to radiate and release heat and/or heated gases to the grilling surface in the third direction. In L 0 this form, the heat source is able to direct heat towards a central region of the grilling surface. This can ensure that a substantially uniform heat distribution is achieved across the entire surface of the grilling surface. In some forms, the air impulsion mechanism can cause air to pass through one or more inlets in the grilling apparatus and then to the heat source in a fourth direction, wherein L 5 the fourth direction is parallel to the first direction. This arrangement allows the air drawn from outside the apparatus to pass through either the base of the apparatus and then into the heat source, or through the walls of the apparatus and then into the heat source. In some forms, a central part of the reflector can define a base plate for the heat source, whereby a combustible fuel is able to be arranged above the base plate and contained 20 within the heat source, and wherein an air supply conduit is arranged to supply the heated air through an opening of the base plate in the second direction. Advantageously, this allows for a sturdy apparatus whereby the force applied by the grilling surface and the base plate sandwiches the heat source in place when the apparatus is assembled. 25 BRIEF DESCRIPTION OF THE DRAWINGS Notwithstanding any other forms which may fall within the scope of the grilling apparatus as set forth in the Summary, further embodiments of the apparatus will now be provided in the following description, which is given by way of example only and with reference to the accompanying drawings in which: 30 Figures 1A to IC respectively show an embodiment of an assembled grilling apparatus according to the present disclosure; Figure 2 shows an exploded perspective view of the grilling apparatus of Figure 1; Figures 3 and 4 show two alternative cross-sectional views taken through the grilling 5474491 1 (GHMailers P94800 All 1 3 apparatus of Figure 1; Figure 5 shows a schematic side, partially sectioned view of the grilling apparatus of Figure 1 and marked-up to illustrate air flow therethrough; Figures 6A to 6C respectively show side, detail and plan views of a housing that 5 forms a part of the grilling apparatus of Figure 1; Figures 7A to 7C respectively show side, detail and plan views of a reflector bowl that forms a part of the grilling apparatus of Figure 1; and Figures 8A and 8B respectively show perspective and underside plan views of a supporting base that forms a part of the grilling apparatus of Figure 1; L 0 Figure 9 shows a perspective view of an assembled grilling apparatus according to another embodiment of the present disclosure; Figure 10 shows an exploded perspective view of the grilling apparatus embodiment of Figure 9; Figures 11 and 12 show two alternative cross-sectional views taken through the L 5 grilling apparatus embodiment of Figure 9; Figures 13A to 13D respectively show plan, front, side and partly-sectioned views of the grilling apparatus embodiment of Figure 9; Figures 14A to 14D respectively show plan, front, underside plan and sectional views of a base for the grilling apparatus embodiment of Figure 9; 20 Figures 15A to 15C respectively show plan, front and sectional views of a lid for the grilling apparatus embodiment of Figure 9; Figures 16A to 16C respectively show plan, side and sectional views of a housing for the grilling apparatus embodiment of Figure 9; Figures 17A and 17B respectively show plan and side views of an ember pot (mesh) 25 side wall for the grilling apparatus embodiment of Figure 9; Figures 18A to 18C respectively show plan, side and sectional views of an ember pot (false) base for the grilling apparatus embodiment of Figure 9; Figures 19A and 19B respectively show plan and side section views of an ember pot ignition base tray for the grilling apparatus embodiment of Figure 9; 30 Figures 20A to 20C respectively show plan, side and sectional views of a reflector bowl for the grilling apparatus embodiment of Figure 9; Figures 21A to 21C respectively show plan, side and sectional views of a grill surface for the grilling apparatus embodiment of Figure 9; and Figures 22A to 22D respectively show plan, end, front and perspective views of a fan 5474491 1 (GHMailers P94800 All 1 4 chamber for the grilling apparatus embodiment of Figure 9. DETAILED DESCRIPTION OF SPECIFIC EMBODIMENTS Referring to the drawings, a grilling apparatus is shown in the form of a portable 5 barbeque 10. A heat source in the form of a fuel chamber 12 is mounted within the barbeque 10. The fuel chamber 12 is configured to house a solid fuel (e.g. a carbon-based fuel such as charcoal, wood, coal or other combustible solid matter - e.g. grain-derived pellets, etc). However, it should be understood that the barbeque 10 can be reconfigured for a liquid or gaseous fuel. L 0 The fuel chamber 12 comprises a cylindrical mesh wall 13, typically of a fine woven metal (e.g. stainless steel) mesh. The mesh enables hot combustion (i.e. cooking) gases to be released from within the fuel chamber 12, whilst containing the solid fuel and its combustion residues therewithin, until subsequent disposal after operation of the barbecue. The barbeque 10 additionally comprises a reflector in the form of a heat reflector bowl L 5 14 arranged to surround and support therewithin the fuel chamber 12. The interior surface 16 of the reflector bowl 14 is coated and/or polished so as to promote the reflection of heat and the flow of combustion (i.e. cooking) gases emitted by the fuel chamber 12 up towards a grilling surface of the barbeque 10. The bowl shape is such as to enhance the redirection of the reflected heat and gases. 20 A raised central circular platform 18 (Figure 7) of the reflector bowl 14 defines a first base for the fuel chamber 12, as well as defining a mounting location for the fuel chamber 12. An integrally formed rim 20 of the platform 18 provides peripheral support against lateral movement of chamber 12 and cylindrical mesh 13 once located at the platform 18. In accordance with the present disclosure, and as described hereafter and also illustrated in 25 Figures 3 and 4, the fuel chamber 12 and the platform 18 are configured such that a combustible fuel located in the chamber 12 is spaced above the platform 18, whilst at the same time being contained within the fuel chamber 12. Platform 18 also includes a central aperture 19 through which a conduit carrying pre-heated air can extend, as described below. Multiple sets 22 of air inlet slots 24 are arranged in a side wall 26 of a housing 30 of 30 the barbecue 10. Each of the air inlet sets 22 enables ambient air to be drawn into the barbecue 10 and, ultimately, to be supplied to the fuel in fuel chamber 12. In accordance with the present disclosure, the arrangement of the air inlet slots 24 in the barbecue 10 is such that, as air is drawn into the barbecue 10, it is caused to flow past an underside surface 32 of the reflector bowl 14. As shown in Figure 5, the bowl shape of reflector 14 can promote a 5474491 1 (GHMailers P94800 All 1 5 smoother flow thereunder of the heated air, and can also direct it to an impellor of the barbecue, as described hereafter. The air flow is schematically illustrated by various enlarged arrows in Figure 5. In use of the barbecue 10, the air is heated as it impinges upon and passes across surface 32, before 5 such pre-heated air is drawn by the impellor and fed into the fuel chamber 12. At the same time, the air flow across surface 32 draws heat away from that surface, so that less heat is then radiated to adjacent parts of the barbecue 10 (e.g. to housing 30 and a supporting base of the barbecue). This can allow the barbecue 10 to be carried, touched, etc whilst it is still hot and/or operating, thereby increasing the safety and portability of the barbecue. L 0 The pre-heating of the air can also reduce fuel consumption and/or improve the efficiency of burning of the fuel, thereby increasing the overall efficiency of the barbeque 10. For example, as a portable barbecue, it can mean that the barbeque 10 is able to grill for a longer period and/or may operate at lower air inflow (e.g. at a lower fan or pump speed), as explained hereafter. L 5 A side wall 13 of the fuel chamber 12 is able to radiate and release heat and heated gases in a first direction, represented by arrow B in Fig. 5. The air impulsion mechanism, in the form of a battery-powered fan unit 60, supplies air to the fuel chamber in a second direction, represented by arrow C in Fig. 5. The air flow in the second direction C is generally perpendicular to the first direction B. Thus, a column of air passes centrally up into the fuel 20 chamber 12. This air can flow over and within solid fuel located within the chamber 12, generally in the direction B. This means that the air is fully dispersed throughout the fuel, thereby increasing combustion and efficiency of the barbeque 10. The reflector bowl 32 is arranged with respect to the fuel chamber 12, the reflector able to reflect radiation, heat and heated gases emitted by the fuel chamber 12 up towards the 25 grilling surface of the barbeque 10 in a third direction, represented by arrow D in Fig. 5. The airflow in the third direction D is generally perpendicular to the first direction B and that is generally parallel to the second direction C. Thus, efficient and effective on-transfer of the radiant heat and heated gases is ensured. The fan 60 causes air to pass through one or more inlets 24 in the BBQ 10 and then 30 to the fuel chamber 12 in a fourth direction, represented by arrow A in Fig. 5. The fourth direction A is parallel with the first direction B. The housing 30 is configured to support the reflector bowl 14 therewithin, as well as to support a grilling surface in the form of a circular grilling grate 34 at an in-use open upper end thereof It will also be seen that the grilling grate 34 also comprises an enlarged food 5474491 1 (GHMaile r O P9400Al 1 6 retention ring 35 connected thereto by vertical struts 36. This ring helps to prevent food being grilled from rolling or being knocked off the barbecue in use. To further support the reflector bowl 14 within the housing 30, a laterally extending peripheral outer lip 37 of the reflector bowl 14 locates (i.e. sits) against an upper rim 38 of the 5 housing 30. As shown in Figure 7C, a series of air release slots 39 are formed in the lip 37 to facilitate the release of stagnant air from an upper region of the housing interior in use (i.e. as also schematically illustrated by the uppermost enlarged airflow arrows A-D depicted in Figure 5). In addition, radial struts 40 of the grilling grate 34 extend over to be secured against L 0 the lip 37 of bowl 14, thereby securing the bowl to the rim 38 of the housing 30. Further, an outer, circular ring member 42 of the grate 34 is releasably secured to the housing rim 38 via a series of discrete, spaced and releasable cam-lock clamps 44, thereby securing the grate 34 to the housing 30. The housing 30, reflector bowl 14 and grilling grate 34 are configured to support and L 5 secure the fuel chamber 12 within the barbecue 10 (i.e. under the grilling grate 34 in use). In this regard, once the fuel chamber 12 has been filled with fuel and located in the reflector bowl 14 at platform 18, the grilling grate 34 is then secured to the housing 30 via the cam lock clamps 44. However, to enable especially particulate fuel and residue to be contained within the 20 fuel chamber 12, a top in the form of a lid 46 can be provided to close an open upper end of the chamber 12. In addition, a centrally located disc 48 can be provided in the grate 34 which, when the grate 34 is secured to the housing 30, can engage against an upper handle 50 of the lid 46, to thereby hold the lid securely closed against the upper end of the chamber 12. Thus, the barbeque 10 can be "closed" so as to be self-contained and rendered highly portable and 25 robust. The barbeque 10 further comprises a supporting base 52 to which the housing 30 is mounted via releasable fasteners (e.g. screws) 53. The supporting base 52 has four discrete, spaced legs 54 which enable it to sit on a surface (e.g. table, bench-top, etc). The supporting base 52 also has opposing finger-hold recesses 56 formed (e.g. moulded) therein to enable 30 easy carrying of the barbecue 10. The supporting base 52 is formed (e.g. moulded) to have a hollow interior to enable pre-heated air to flow therein (see Figure 5) from the housing 30, the air passing via a series of discrete, spaced air holes 57 formed in an integral base 58 of the housing 30. Housing base 58 also includes a central aperture 59 through which a conduit carrying pre-heated air can 5474491 1 (GHMaile r O P9400Al 1 7 extend, as described below. The supporting base 52 is also configured to locate and support an air impulsion mechanism centrally therewithin in the form of a battery-powered fan unit 60. The fan unit 60 draws pre-heated air from the housing 30 through the air holes 57, the base 52 hollow interior 5 and into the fan unit (see Figure 5). The pre-heated air is then fed (i.e. pumped) by the fan unit 60 and into the fuel chamber 12 via an air supply conduit 62. In this regard, the conduit 62 extends through the aperture 59 in housing base 58 and aperture 19 in platform 18 to open into a space 64 (see Figures 3 to 5) defined above the platform 18 and under a base 66 of the fuel chamber 12. The chamber base 66 also has a series of discrete, spaced air holes 68 L 0 formed therein which enable air to pass from the space 64 and into the fuel chamber 12 to react with the fuel therein in use. This arrangement provides for effective air distribution up into the chamber 12. The space 64 can also accommodate an ignition-type material (e.g. paraffin, etc). Thus, the ignition-type material is located directly under the main combustion chamber of the fuel L 5 chamber 12. When starting the barbecue 10, the ignition-type material can be loaded at platform 18, lit by a user, and then the loaded fuel chamber 12 can be located there-above. In a variation, the ignition-type material can be ignited by the heated air passing into space 64, which can then cause the main fuel of the fuel chamber 12 to be ignited. As shown in a variation in Figure 3, the platform 18 can optionally be provided with a 20 series of small holes 69 therein, which can allow for a proportion of pre-heated air located within the housing 30 to be drawn into the space 64, to in turn flow (i.e. be sucked up) into the fuel chamber 12. As shown in Figure 8, batteries 69 for the fan unit 60 can be located in a battery chamber 70 defined in an underside of the supporting base 52, the chamber 70 being closed 25 by a cover 72 (Figure 2). The batteries may be rechargeable, and can be periodically recharged in situ by mains power, without needing to access them in the chamber 70 via cover 72. In other words, the barbeque 10 can be "plugged-in" for recharging between uses. The motor for the fan unit 60 can be a fixed speed motor. However, the motor employed in the present embodiment is a variable speed motor, whereby the flow of pre 30 heated air fed to the fuel chamber 12 is able to be varied (e.g. to regulate fuel burn and thereby temperature of the grilling barbeque 10). The motor speed is controlled by a control dial 74 (Figure 1) located in the supporting base 52. The dial 74 is in turn connected to a motor potentiometer or similar, as is known. In accordance with this disclosure, the reflector bowl 14 is configured to define an 5474491 1 (GHMaile r O P9400Al 1 8 annular well 80 that surrounds a bowl central part 82 that extends up to platform 18. A side wall of the reflector bowl 14 that defines the internal reflective surface 16 and the external air-cooled surface 32 extends up from the well 80 to the peripheral outer lip 37. As illustrated most clearly in Figure 3, the well 80 is able to hold a liquid that can 5 vaporize, or hold a solid that can sublimate, during operation of the barbeque 10. For example, the liquid can be a water-based solution (e.g. a marinade, juice, jus, etc) that releases aromatic compounds to flavour a foodstuff that is being grilled on the barbeque 10. The solid may comprise a substance that is able to sublimate to form a smoke that flavours the foodstuff being grilled (e.g. hickory, wood-chip, charcoal, etc). L 0 The supporting base 52 comprises legs and leg supports 85, 86 to support the base above a surface. The barbecue 10 also comprises a display ring 90 to be arranged between the housing 30 and supporting base 52. Whilst specific embodiments of the barbecue 10 have been described, it should be appreciated that the barbecue may be embodied in other forms. L 5 For example, the air impulsion mechanism for supplying air to the fuel chamber 12 may, instead of a fan, take the form of an impeller or pump. Also, whilst usually the air impulsion mechanism is located within the barbeque 10, so that the barbeque 10 can be a self-contained unit, it may take the form of an externally located mechanism. In addition, the grilling surface is shown as a grate, but may take the form of a grill, 20 griddle, plate, etc. Referring now to Figs. 9 to 22, another embodiment of a grilling apparatus is shown in the form of a portable barbeque 110. A heat source in the form of an ember pot 112 is mounted within the barbeque 110. The ember pot 112 is configured to house a solid fuel (e.g. a carbon-based fuel such as charcoal, wood, coal or other combustible solid matter - e.g. 25 grain-derived pellets, etc). However, it should be understood that the barbeque 110 can be reconfigured for a liquid or gaseous fuel. The ember pot 112 comprises a cylindrical mesh wall 113 (shown in Figure 17); typically formed of a relatively medium-coarse woven metal (e.g. stainless steel) mesh. The mesh is reinforced with a ring 114 around its lower perimeter. A mesh is selected that enables 30 hot combustion (i.e. cooking) gases and radiant heat to be released from within the ember pot 112 whilst, at the same time, containing the solid fuel and its combustion residues (e.g. ash, etc) therewithin, until subsequent disposal after operation of the barbecue. An ember pot base 116 (best shown in Figure 18) can be located (e.g. secured such as by welding) within the mesh wall 113 to define a support surface for the solid fuel located in 54744P1 1 (GHMaile r O P9400Al 1 9 the ember pot 112 in use. When the base 116 is located within the mesh wall 113 (see Figures 11, 12 & 13A), the base defines a type of false (i.e. spaced) base within the ember pot. This spaces the fuel from the bottom of the ember pot 112 to enable maximum air supply thereto. To facilitate such air supply, the ember pot base 116 has two series of typically 5 upwardly punched, spaced and discrete holes 118 therein to enable the air to be evenly fed in use to the fuel located on the base 116 within the ember pot 112. The ember pot base 116 also has an outwardly flared, lower peripheral lip 120 formed thereon, upon which the ring 114 of the mesh wall 113 sits (and can be e.g. welded thereto) once a majority of the base 116 has been inserted within the mesh 113, i.e. when the barbeque 110 is assembled (see Figures 11, L 0 12 & 13A). The ember pot 112, comprising mesh 113 and base 116, also sits on an ignition base tray 122 (best shown in Figure 19) when the barbeque 110 is assembled (again, see Figures 11, 12 & 13A). The ignition base tray 122 comprises an upturned outer wall 124 to define the tray. When the barbeque 110 is assembled, the outer wall 124 of the ignition base tray 122 L 5 provides peripheral support against lateral movement of the ember pot base peripheral lip 120, functioning to centre and support the ember pot 112 therein. The ignition base tray 122 also comprises four discrete, evenly spaced support feet 125 formed therein. These can sit on a platform 134 of a heat reflector bowl 130 (as described below). In addition, a central rimmed opening 126 is defined in the ignition base tray 122 to 20 receive therethrough and support thereat an upper end of an air supply conduit 100 (described below), which conduit provides air flow into a plenum space 128 defined between the ember pot base 116 and ignition base tray 122, for air distribution through the holes 18 and into the ember pot 112 in use. The barbeque 110 additionally comprises a reflector in the form of a heat reflector 25 bowl 30 (best shown in Figure 20) which is arranged to surround and support therewithin the ember pot 112. In this regard, the feet 125 of the ignition base tray 122 sit on a slightly raised central platform 134 of the bowl 130. Again, a rimmed central opening 135 is defined in the platform 134 to receive therethrough the aforementioned air supply conduit 100a (described in greater detail below). 30 The reflector bowl 130 is also configured to define an annular well 136 that surrounds the platform 134. The well 136 is able to hold a liquid that can vaporize, or hold a solid that can sublimate, during operation of the barbeque 110. For example, the liquid can be a water based solution (e.g. a marinade, juice, jus, etc) that releases aromatic compounds to flavour a foodstuff that is being grilled on the barbeque 110. The solid may comprise a substance that 5474491 1 (GHMaile r O P9400Al 1 10 is able to sublimate to form a smoke that flavours the foodstuff being grilled (e.g. hickory, wood-chip, charcoal, etc). The well 136 may also collect fat and drippings. The interior, generally parabolic, surface 137 of the reflector bowl 130 is coated and/or polished so as to promote the reflection of heat and radiation, and the flow of 5 combustion (i.e. cooking) gases emitted by the ember pot 112 up towards a grilling surface of the barbeque 110 (see enlarged flow arrows in Figure 12). The bowl shape is such as to enhance the redirection of the reflected heat and gases. The upper rim of the reflector bowl 130 has a flat, outwardly projecting peripheral lip 138 defined thereat, which is able to locate on a housing of the barbecue (described below). L 0 As also shown in Figure 20A, a series of air release slots 139 are formed in the lip 138 to facilitate the release of stagnant hot air from an upper region of the barbecue (housing) interior in use. The barbeque 110 comprises a hollow base 140 (best shown in Figure 14) that is configured to enable the grilling apparatus to sit stably upon a surface (e.g. table, bench, L 5 bench-top, etc). In this regard, the base 140 comprises four, evenly spaced feet 142 formed therein that sit stably on rubber feet 141 and support an underside of the base in a spaced manner above the table, bench, bench-top, etc. The base 140 defines a hollow interior space 143 to facilitate barbecue air flow. In accordance with the present disclosure the base 140 has two opposed recessed 20 handles 144 formed therein. Each of the handles 144 has multiple air inlets therethrough in the form of a series of adjacent elongate slots 146 that are configured to allow air to flow into the base from the surrounds. The location and orientation of the slots 146 is such that their presence is disguised for aesthetic purposes. However, their location allows maximum air flow into the base 140 from multiple entry points, and also ensures that the handles 144 25 remain cool to the touch in use of the barbecue 110 (i.e. a lit barbecue can be picked up, carried and moved). Similar to the first embodiment of the barbeque, described with reference to Figs. 1 8, a side wall 113 of the fuel chamber is able to radiate and release heat and heated gases in a first direction, represented by arrow B in Fig. 12. The air impulsion mechanism, in the form 30 of a battery-powered fan unit 150, supplies air to the fuel chamber in a second direction, represented by arrow C in Fig. 12. The air flow in the second direction C is generally perpendicular to the first direction B. Thus, a column of air passes centrally up into the fuel chamber 12. This air can flow over and within solid fuel located within the chamber 12, generally in the direction B. This means that the air is fully dispersed throughout the fuel, 5474491 1 (GHMaile r O P9400Al 1 11 thereby increasing combustion and efficiency of the barbeque 10. The reflector bowl 130 is arranged with respect to the fuel chamber, the reflector 130 able to reflect radiation, heat and heated gases emitted by the fuel chamber up towards the grilling surface of the barbeque 110 in a third direction, represented by arrow D in Fig. 5 12. The airflow in the third direction D is generally perpendicular to the first direction B and that is generally parallel to the second direction C. Thus, efficient and effective on-transfer of the radiant heat and heated gases is ensured. In an alternate arrangement to the embodiment described in Fig. 5, the fan 150 causes air to pass through the air inlet slots 146 of the handles 144 in the barbeque 110 and L 0 then to the fuel chamber in a fourth direction, represented by arrow A in Fig. 12. As was the case in the first embodiment (Fig. 5), the fourth direction A is parallel with the first direction B. As shown in Fig. 12, cold air is drawn through the sides of base through the air vents integrated into the handles. The air is then drawn through the base and into the fan chamber L 5 before being expelled through the ember pot and reflected to the underside of the cooking surfaces. Small holes in the lid also allow heat to heat up the frying plate in the centre of the grill. The barbeque 110 comprises an air impulsion mechanism in the form of an air chamber 150 (best shown in Figure 22) and fan 152 located within the chamber. The fan 152 20 is driven by a motor 153 and draws air into the base hollow interior 143 via the slots 146. The fan 152 then expels this air to the ember pot 112 (via the air conduit 100a). The pressurised supply of air to the fuel disposed in the ember pot 112 helps to facilitate combustion, with the control of such air supply (flow) enabling combustion (heat and temperature) control. The chamber 150 is mounted centrally within the base 140 via releasable fasteners 25 (e.g. screws) 151 that extend through mounts 155 (see also Figures 10, 11, 12 & 13D). The chamber 150 comprises an air entrance passage 154 that is open at one end to allow air to be drawn from within the base hollow interior 143 and into the chamber 150. The chamber 150 also comprises an air outlet passage 156 that is arranged to direct air that is expelled by the fan 152 from within the chamber up to the ember pot 112 (i.e. via the air conduit 100a). 30 In accordance with the present disclosure the chamber 150 is configured such that the air is drawn into the air entrance passage 154 in a first direction (i.e. generally horizontally in use - see arrows in Figure 12), and is expelled via the air outlet passage 156 in a second direction that is generally perpendicular to the first direction (i.e. generally vertically in use see arrows in Figure 12) to the ember pot 112. This ensures a concentrated and directed 5474491 1 (GHMaile r O P9400Al 1 12 supply of air to the fuel in the ember pot 112, and best configures the barbecue base 140 (i.e. as a self-contained and compact unit). The air flow rate through the chamber 150 is variably controlled by a variable speed controller for the motor 153 of the fan 152 (or impeller/pump). This controller is operated by 5 a speed control dial 158 (see Figures 9, 10, 13B & 14B) to thereby control the flow rate of air to the ember pot 112, and to thereby control fuel burn and temperature of the barbecue 110. The dial 158 can be LED illuminated 159 (Figure 13B) to indicate a degree of heat, and is in turn connected to a motor potentiometer or similar, as is known. The motor 153 can alternatively be a fixed speed motor. L 0 The motor 153 of the fan 152 is battery powered. A battery recess 160 for batteries 162 (e.g. four AA batteries) is accessible from an underside of the base 140 via a hatch 164 located in the base, to enable battery interchange. The battery recess may hold rechargeable batteries, which can be periodically recharged in situ by a suitable plug-in point (e.g. without needing to access them via hatch 164). In other words, the barbeque 110 can be "plugged-in" L 5 for recharging between uses. The barbecue 110 comprises a grilling surface in the form of a circular grilling grate 170, although the surface may take the form of a griddle, plate, etc. The grate 170 is releasably latched via opposing cam-lock catches 172 at an uppermost part of the barbecue 110 in use. The grate 170 comprises a hot plate 174 arranged centrally therewithin. The hot 20 plate allows for the frying of food on the grate 170, and also helps to support e.g. containers and like implements placed on the grate 170 in use. The hot plate 174 is also configured and located to generally overlie the ember pot 112 (see Figures 10 & 11) for the receipt of and direct on-transmission of heat/radiation from the ember pot 112. The grate 170 also comprises a retention rail 176 that is connected to the grate to 25 extend around a perimeter thereof, at an elevated location. The rail helps to retain food, containers, implements, etc in use of the barbecue 110. The rail 176 further comprises a deformation in the form of an outward protrusion 178 formed therein to enable a suitable barbecue tool to be supported thereat (i.e. to be hung therefrom). The ember pot 112 also comprises a top in the form of a lid 180 (best shown in Figure 30 16) for closing over an in-use upper opening of the mesh wall 113 (see Figures 11, 12 & 13A) to retain embers, ashes, sparks and flames therein. In accordance with the present disclosure the lid comprises multiple apertures therethrough in the form of a series of spaced, discrete holes 182 to enable the release of heat and radiation from within the ember pot 112 in use to the underside of the hot plate 174. 5474491 1 (GHMaile r O P9400Al 1 13 The lid 180 also comprises an upwardly protruding handle 184 located centrally therewithin. When the barbecue 110 is assembled, the underside of the hot plate 174 engages with the handle 184 (i.e. sits flush and bears against a flat 185 thereof) to hold the lid 180 against the mesh wall 113, to in turn hold the ember pot 112 against the ignition base tray 122 5 and thence the reflector bowl platform 134 (i.e. to contain therein the fuel and its residue). Thus, the barbeque 110 can be "closed" so as to be self-contained and thereby be rendered highly portable and robust. However, release of the catches 172 allows the grate 170 to be lifted away, and hence the lid 80 to be lifted off, for removal of the ember pot 112 for emptying, cleaning, servicing, etc. L 0 The barbecue 110 also comprises a hollow housing 190 which is mounted at an open upper end (rim) of the barbecue base 140. The housing 190 is mounted to the base 140 via releasable, hidden fasteners 191 (e.g. screws - see Figure 10) that fasten into an inwardly protruding peripheral lip 192 at the upper rim of the base 140 (see Figure 11). The catches 172 are located at an in-use upper rim 193 of the housing 190, which rim L 5 has a flat, inwardly projecting peripheral lip 194 defined thereat. Multiple series of hot air release slots 195 are arranged in and formed through a side wall 196 of the housing 190. The air release slots 195 allow air that is heated adjacent to the underside of the reflector bowl 130 to pass out of the barbecue to atmosphere, to prevent barbecue overheating. However, when carrying the barbecue 110, it is still recommended to use the recessed handles 144 20 having the air inlet slots 146 therein, which handles 144a remain cool to the touch in use of the barbecue 110. The housing 190 also comprises a base wall 198 that closes off the lower opening of the housing (as well as the base upper opening when mounted thereto). The base wall 198 supports an air supply conduit 100a centrally therewithin, which conduit has a lower end that 25 aligns with the air outlet passage 156 when the housing 190 is mounted to the barbecue base 140. The air supply conduit 100a also supports thereon and extends through the reflector bowl central platform 134 and ignition base tray 122, with its upper end opening onto and releasing air expelled from the fan 152 into the plenum space 128. When the housing 190 is mounted to the barbecue base 140, it can retain a 30 circumferential, circular trim piece 102a between it and the base 140. The trim piece can carry suitable branding, labelling, etc, and can provide an aesthetic effect at the join of the housing and barbecue base. The housing 190 is configured to mount and support the reflector bowl 130 therewithin, and to then support the grilling grate 170 at the housing upper rim 192. In this 5474491 1 (GHM ler q P94800 All 1 14 regard, when the reflector bowl 130 is located within the housing 130, the reflector bowl lip 38 sits over and is supported thereunder by the housing lip 194 (as best shown in Figures 11 & 12). Thereafter, the grilling grate 170 is located over the reflector bowl lip 138 so that an outermost radial strut 104a of the grate 170 extends over to be secured with respect to the lip 5 138 by the releasable cam-lock catches 172, thereby securing the grate 170 to the housing 190. In use, the cam-lock catches 172 are released, the grate 170 is removed, and the ember pot 112 is lifted out. The ember pot 112 is filled with fuel and, optionally, a fire-starter (e.g. paraffin, etc) is lit therewithin. Alternatively, a fire-starter (e.g. an ignition-type material such L 0 as paraffin, etc) may be lit at the ignition plate. The lid 180 is then fitted to close the ember pot 112. The fan 152 is started, and the closed ember pot 112 is then located back within the reflector bowl 130 at ignition base 122. The grilling grate 170 is then re-secured to the housing 190 via the catches 172. The barbecue is now ready to be used. Whilst specific embodiments of the barbecue 110 have been described, it should be L 5 appreciated that the barbecue may be embodied in other forms. For example, the air impulsion mechanism for supplying air to the ember pot 112 may, instead of a fan, take the form of an impeller or pump. Also, whilst usually the air impulsion mechanism is located within the barbeque 110, so that the barbeque 110 can be a self-contained unit, it may take the form of an externally located mechanism. 20 In addition, the grilling surface is shown as a grate, but may take the form of a grill, griddle, plate, etc. In the claims which follow and in the preceding description, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as "comprises" or "comprising" is used in an inclusive sense, i.e., to specify 25 the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the grilling apparatus. 5474491 1 (GHMaile r OO P9400Al 1