초록 ▼

A supplemental air directing frame for a fireplace ( 10 ) is provided where frame ( 10 ) includes an upper channel ( 12 ), a pair of sidewalls ( 14 ) and a pair of front panels ( 16 ). Upper channel ( 12 ) has an air flow opening formed therethrough and air is directed through the air flow opening i

A supplemental air directing frame for a fireplace ( 10 ) is provided where frame ( 10 ) includes an upper channel ( 12 ), a pair of sidewalls ( 14 ) and a pair of front panels ( 16 ). Upper channel ( 12 ) has an air flow opening formed therethrough and air is directed through the air flow opening into nozzle ( 32 ), where it is directed towards combustible material ( 48 ) within fireplace ( 24 ). A variably controlled fan ( 26 ) draws exterior air into upper channel ( 12 ). The fan ( 26 ) is controlled by a rheostat ( 28 ) so that a user may variably control the rate of air directed into combustion chamber ( 24 ), thus controlling the rate of combustion of the combustible material ( 48 ).

대표청구항 ▼

1. A supplemental air directing frame for a fireplace comprising:a combustion chamber having a front opening and a hearth;means for supporting solid combustible products in said combustion chamber, said solid combustible products being positioned in spaced relation to said hearth;a mountable frame h

1. A supplemental air directing frame for a fireplace comprising:a combustion chamber having a front opening and a hearth;means for supporting solid combustible products in said combustion chamber, said solid combustible products being positioned in spaced relation to said hearth;a mountable frame having an upper channel and a pair of opposed side walls, said mountable frame being mounted on a periphery of said front opening of said combustion chamber, said upper channel having a closed end and an open end, said closed end and said open end being longitudinally opposed to one another, said upper channel defining a front wall and a rear wall, said rear wall having an air flow opening formed therethrough;an externally powered fan fixed to said open end of said upper channel for drawing air from an external environment into said upper channel, said externally powered fan having a variable power output; and,a nozzle fixedly secured to said rear wall of said upper channel about said air flow opening, said nozzle projecting into said combustion chamber and directing said air from said upper channel directly onto said solid combustible products for increasing available combustible oxygen for combustion of said solid combustible products. 2. The supplemental air directing frame for a fireplace as recited in claim 1, wherein said mountable frame is formed of a thermally conductive material. 3. The supplemental air directing frame for a fireplace as recited in claim 1, wherein said mountable frame receives a pair of doors for covering said front opening of said combustion chamber. 4. The supplemental air directing frame for a fireplace as recited in claim 1, wherein said means for supporting solid combustible products has a thermal reflector projecting therefrom for directing radiant heat into said external environment. 5. The supplemental air directing frame for a fireplace as recited in claim 1, wherein said externally powered fan is in electrical communication with a rheostat for controlling power output of said externally powered fan. 6. The supplemental air directing frame for a fireplace as recited in claim 1, wherein an insulating layer of ash is formed between said means for supporting solid combustible products in said combustion chamber and said hearth. 7. The supplemental air directing frame for a fireplace as recited in claim 1, wherein said upper channel has a substantially rectangular cross-section. 8. The supplemental air directing frame for a fireplace as recited in claim 1, wherein each of said side walls defines a passage for receiving a stack of thermally insulating bricks. 9. The supplemental air directing frame for a fireplace as recited in claim 1, wherein an insulating layer of brick is formed between said hearth and said means for supporting solid combustible products. 10. The supplemental air directing frame for a fireplace as recited in claim 1, wherein said externally powered fan is in electrical communication with a power source. 11. The supplemental air directing frame for a fireplace as recited in claim 1, wherein an insulating layer of ash is formed between said means for supporting solid combustible products and said hearth. 12. A supplemental air directing frame for a fireplace comprising:a combustion chamber having a front opening and a hearth;means for supporting solid combustible products in said combustion chamber, said solid combustible products being positioned in spaced relation to said hearth, said means for supporting solid combustible products having a thermal reflector mounted thereon for reflecting and directing infrared radiation generated by combustion of said solid combustible products;a mountable frame having an upper channel and a pair of opposed side walls, said mountable frame being mounted on a periphery of said front opening of said combustion chamber, said upper channel having a closed end and an open end, said closed end and said open end being longitudinally opposed to one anothe r, said upper channel defining a front wall and a rear wall, said rear wall having an air flow opening formed therethrough;an externally powered fan fixed to said open end of said upper channel for drawing air from an external environment into said upper channel, said externally powered fan having a variable power output and,a nozzle fixedly secured to said rear wall of said upper channel about said air flow opening, said nozzle projecting into said combustion chamber and directing said air from said upper channel directly onto said solid combustible products for increasing available combustible oxygen for combustion of said solid combustible products. 13. The supplemental air directing frame for a fireplace as recited in claim 12, wherein said mountable frame is formed of a thermally conductive material. 14. The supplemental air directing frame for a fireplace as recited in claim 12, wherein said mountable frame receives a pair of doors for covering said front opening of said combustion chamber. 15. The supplemental air directing frame for a fireplace as recited in claim 14, wherein each of said doors is formed from glass. 16. The supplemental air directing frame for a fireplace as recited in claim 12, wherein said externally powered fan is in electrical communication with a rheostat for controlling power output of said externally powered fan. 17. The supplemental air directing frame for a fireplace as recited in claim 12, wherein said upper channel has a substantially rectangular cross-section. 18. The supplemental air directing frame for a fireplace as recited in claim 12, wherein each of said side walls forms a passage for receiving a stack of thermally insulating bricks. 19. The supplemental air directing frame for a fireplace as recited in claim 12, wherein a thermally insulating layer of brick is formed between said means for supporting solid combustible products and said hearth. 20. The supplemental air directing frame for a fireplace as recited in claim 12, wherein said externally powered fan is in electrical communication with a power source.