KR101381913B1 - Fireplace - Google Patents

Abstract

The present invention relates to a fireplace for indoor heating that combusts coal such as brown coal and charcoal. The present invention includes a main body that is divided into a lower portion where a combustion frame is disposed which burns collected coal and allows ash to drop downward and an upper portion which forms a combustion space in an upper portion of the combustion frame and has an inlet formed in the front and an exhaust pipe connected to an upper portion; an opening/closing device that is disposed in the front of the main body upper portion to open and close the inlet and is disposed to open and close the inlet while lifting and lowering an opening/closing door by using a first handle; a supply device that supplies air required for the combustion of the coal, allows air to flow in from an upper portion of the opening/closing door and to be supplied to a lower portion of the combustion frame, and is formed to adjust the amount of the supplied air; and an exhaust device that is disposed on a lower side of the lower portion main body, receives and discharges the ash dropping from the combustion frame, and is formed to discharge the ash outside while driving a screw feeder by using a second handle. According to the present invention, the opening and closing of the opening/closing door can be safe, the heat and foreign matters coming outside through the opening/closing door can be taken back in, and the ash generated after the combustion of the coal can be discharged outside with ease.

Description

Fireplace {Fireplace}

The present invention relates to a fireplace, and specifically, to securely open and close the opening and closing door so as to re-inhale the heat and foreign substances that have escaped through the opening and exit, and to easily discharge the ash generated after the combustion of the coal (炭) to the outside. Of course, it relates to a fireplace to be able to simply cook food in the upper body, and to recover and recycle the waste heat discharged through the exhaust pipe.

In general, the fireplace is to heat the fire in the interior wall with burning firewood, such as lignite or charcoal, the combustion frame is formed so that ash falls on the bottom of the combustion chamber and the bottom of the combustion frame drawer-shaped ash The receiving base is installed, the opening type door is installed at the front and the exhaust pipe is installed at the upper part.

However, according to the fireplace of the general configuration, the following problems occur.

First, opening and closing doors must be opened in order to replenish the coal during the use of the fireplace. As the heat comes out, a person burns or the foreign substance (dust or soot) that comes out with the heat easily pollutes the fireplace and its surroundings.

In addition, the burning fireplace is not only inconvenient to empty the ash tray frequently because a large amount of ash is generated during use, it is also inconvenient to move to a designated place outdoors to collect the ash when emptying the ash. . In addition, the ash may fall or fly from the ash tray during the movement of the ash outdoors, which may cause the indoor soiling.

The present invention has been made in order to solve the above-mentioned problems of the prior art, the main purpose of the opening and closing of the door is safe and re-exhausted by the vacuum force generated inside the body during the combustion and heat and foreign substances exiting the outside through the opening and closing door The goal is to provide a fireplace that allows for the inhalation of combustion to keep the surroundings clean at all times and to facilitate the discharge of ash generated after the burning of coal to the outside.

Another object of the present invention is to provide a fireplace that allows the coal supplied to the inside of the main body to naturally gather and burn in the center of the combustion frame, and to easily drop ash remaining on the combustion frame to the bottom.

Another object of the present invention is to provide a fireplace to the top of the main body to be able to simply cook in the room to be able to pass through the waste heat emitted through the exhaust pipe in the compartment formed with the cooking groove.

Another object of the present invention is to provide a fireplace that allows the heat storage enclosure on the path of the exhaust pipe to recover and recycle the waste heat discharged through the exhaust pipe.

Another object of the present invention is to provide a fireplace that can be installed on the exhaust pipe to maximize the combustion efficiency inside the main body by forcing the discharge of the air inside the main body or the heat storage enclosure.

The fireplace according to the present invention forms a combustion space in the lower part of the combustion frame and the upper part of the combustion frame so that ashes fall down while collecting coals and burning the main body, which is formed with an entrance in the front and an exhaust pipe connected to the upper part. ; An opening / closing device installed at the front of the main body to open and close the doorway, the opening and closing device being installed to open and close the doorway by elevating the door by using a first handle; A supply device configured to supply air necessary for combustion of the coal, wherein air is introduced from an upper portion of the opening / closing door to be supplied to a lower portion of the combustion frame, and an amount of the supplied air is controlled; And a discharge device installed below the lower main body and configured to receive and discharge ash falling from the combustion frame, and to be discharged to the outside while driving a screw feeder using a second handle.

The main body forms a fireproof wall around the combustion frame, and is formed to be inclined so that the supplied coal is collected above the central combustion frame.

The combustion frame is fixed to the outer frame while being fixed to the lower body; A flow frame installed inside the fixing frame, the shaft being installed so as to rotate at an angle to both sides while supporting the bullet and not falling out; And a first lever coupled to the flow frame, wherein the first lever is rotated to both sides to drop ash, and is coupled to the shaft so as to lie on the fixing frame or flow frame when not in use.

A cooking space is formed at the upper end of the main body, and the partition space is formed to be discharged through the exhaust pipe after being circulated after being introduced into the hot air discharged while being formed under the cooking groove.

The opening and closing device is installed in the shaft in front of the upper body, the screw screwed through the upper end of the opening and closing door; And a gear shaft unit connecting between the upper end of the screw and the first handle.

The opening and closing device is formed in the lower portion of the opening and closing door, the blocking groove formed so that the lower end of the opening and closing door; A threshold installed inside the blocking groove and in close contact with a lower end of the opening / closing door through lifting; And a spring installed inside the blocking groove and having an elastic force acting to raise the threshold.

The supply device is installed in the upper portion of the opening and closing door, a plurality of vents formed on the lower surface while protruding forward so that the heat or foreign matter discharged to the outside when the opening and closing the door is introduced with the air; A connecting pipe connected to the lower part of the main body from the rear of the inlet to allow air to be transferred; A supply pipe bent upward from the lower part of the main body and connected to the connection pipe at an upper end thereof; And a control plate installed in the bent interior of the supply pipe and adjusting the supply amount of air through opening and closing of the supply pipe while moving forward and backward using the second lever installed through the front.

The discharge device is formed in the shape of a drawer to receive the falling ash is installed in the lower portion of the combustion frame, the bottom plate is formed to drop the received ash while the front plate is moved forward to the bottom discharge; And a hopper installed below the primary ash tray and receiving the falling ash to supply the screw feeder.

A heat storage enclosure installed on a path of the exhaust pipe and collecting and storing waste heat discharged; A hot air pipe wound to receive the waste heat introduced into the heat storage enclosure through an exhaust pipe from a surface thereof; A suction pipe connected to a distal end of the hot air pipe so as to suck the heat of the room elevated upward; A circulation blower connected to the other end of the hot air pipe to forcibly suck and discharge air; A transfer pipe connected to the circulation blower and configured to transfer heat to another place; .

On the exhaust pipe of the main body is preferably provided with a blowing means for forcibly discharging the air inside the main body to the outside.

Here, the blowing means may be configured by installing a blower directly inside the exhaust pipe.

In addition, the blower is preferably configured to install a blower outside the exhaust pipe, the outlet of the blower is inserted in the discharge direction of the exhaust pipe.

On the other hand, the vent is formed in the inlet of the supply device is preferably larger in size as the distance away from the suction side of the upper end of the connecting pipe.

The front end of the suction pipe is further provided with a filter for filtering dirty dust and the like during the suction of the heated indoors.

The hot air pipe is preferably formed of a bellows to increase the surface area to collect a lot of waste heat.

According to the fireplace of the present invention, the user can prevent the risk of burns and contamination by foreign matters by re-suctioning the heat and foreign substances escaped to the outside through the opening and closing the door by the vacuum force inside the main body when burning, while the opening and closing of the door is safe. There is an effective effect, it is easy to use by making it easy to discharge the ash generated after the combustion of the coal to the outside.

According to the fireplace of the present invention, the coal supplied into the combustion chamber is naturally gathered at the center of the combustion frame and burned, so that combustion of the coal is smooth and stable, and the ash remaining on the combustion frame can be easily dropped to the lower part, thereby remaining There is an effect that the processing of becomes more convenient.

According to the fireplace of the present invention can form a cooking groove in the upper portion of the main body can be simply cooked in the room, there is an effect that can reduce the fuel cost.

In addition, according to the fireplace of the present invention, by installing the heat storage enclosure on the path of the exhaust pipe to reuse the waste heat discharged through the exhaust pipe, and the warm air staying in the upper part of the room, to increase the thermal efficiency, as well as the heating cost significantly There is an effect that can be reduced.

In addition, according to the fireplace in the present invention, by forcibly discharging the air by the blowing means on the exhaust pipe path there is an effect that can further increase the combustion efficiency inside the body.

1 is a perspective view showing a fireplace to which the present invention is applied.
Figure 2 is a front exploded view showing a fireplace to which the present invention is applied.
Figure 3 is a side sectional view showing a fireplace to which the present invention is applied.
Figure 4 is a perspective view of the main part of the main body of the fireplace to which the present invention is applied.
Figure 5 is a state diagram showing the main body of the fireplace to which the present invention is applied.
Figure 6 is a main sectional side view showing the opening and closing device of the fireplace to which the present invention is applied.
Figure 7 is a plan sectional view showing a supply device of the fireplace to which the present invention is applied.
Figure 8 is a side sectional view showing a supply device of the fireplace to which the present invention is applied.
Figure 9 is an operating state showing the discharge device of the fireplace to which the present invention is applied.
10 is an exemplary view showing a fireplace to which the present invention is applied.
Figure 11 is an exemplary view showing a structure further applied blowing means in the fireplace to which the present invention is applied.
12 is an exemplary view showing a structure in which another blowing means is further applied in a fireplace to which the present invention is applied.

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

1 to 10 as the fireplace of the present invention is installed in the upper portion of the base plate, the combustion frame 110 is installed in the lower part and the front door 120 is formed and the upper part is connected to the exhaust pipe 130 The main body 100, which is divided into the opening and closing device 200 is installed to open and close the door while lifting the door 220 using the first handle 210, the air flows from the top of the door to the lower combustion chamber And a discharge device 400 configured to discharge the ash to the outside while driving the screw feeder 420 using the supply device 300 and the second handle 410 to be supplied.

The main body 100 forms a combustion space on the lower portion of the combustion frame 110 and the upper portion of the combustion frame 110 so that ashes fall down while collecting coals such as lignite, charcoal or stone and burning down. 120 is formed and the upper portion is divided into an upper portion connected to the exhaust pipe (130). The main body 100 divided into the lower part and the upper part is preferably prevented from falling through mutual coupling to achieve stability.

The main body 100 is typically formed of a metal material, but inside the fire wall 140 is installed as shown in Figure 3, in particular, the fire wall 140 is installed around the combustion frame 110 is supplied The coal (炭) is formed to be inclined so as to gather over the central combustion frame (110). That is, the interior of the main body 100 divided into upper and lower ends with a fireproof wall 140, the fireproof wall 140 formed around the combustion frame 110 of the lower main body 100 is naturally supplied coal It is formed in the form of a hopper to gather into the combustion mold (110).

The combustion frame 110 is installed on the inner side of the fixing frame (110a), the fixing frame (110a), which is fixed to the lower main body 100 as shown in Figure 4 and 5 as an embodiment, but the coal It is coupled to the flow frame (110b) and the flow frame (110b) is installed in the shaft so as to rotate at a predetermined angle to both sides while not supporting the lower portion, and rotates the flow frame (110b) to both sides to drop ash, It is configured to include a first lever (110c) is fixed to maintain the angle. Therefore, after the coal is burned or completely burned, the first lever 110c may be grasped by using a forceps to shake the flow frame 110b to the left and right so that the residue is completely discharged downward.

In another embodiment, as shown in FIGS. 1 to 3, the main body 100 has a cooking groove 150 formed at an upper end thereof, and heat discharged into the lower portion of the cooking groove 150 flows into the exhaust pipe 130 after circulation. To form a compartment space 160 to be discharged through. Therefore, if a kettle or a pot is placed on the cooking groove 150, the heat discharged is moved through the partition space 160 to fall into the exhaust pipe 130. Because it heats the food in it can boil or heat it.

The opening and closing device 200 is installed in front of the main body 100 to open and close the doorway 120, opening and closing the doorway 120 while lifting the door 220 using the first handle 210. To be installed. That is, the opening and closing device 200 may prevent the heat or foreign matter from being pushed out of the main body 100 to the outside when the opening and closing door 220 is opened up and down as shown in Figures 1 to 3, Since the first handle 210 is installed at one side of the opening / closing door 220, the first handle 210 is prevented from being heated by the heat of combustion, and thus can be easily and safely operated by hand at any time. At this time, the opening and closing door 220 is preferably formed of tempered glass or the like so that it is easy to check the state in which the coal is burned.

As shown in FIG. 2, the opening and closing device 200 is axially installed in front of the upper body 100, and is screwed and screwed through an upper end of the opening and closing door 220. It is configured to include a gear shaft unit 240 connecting between the top of the 230 and the first handle (210). In this case, the gear shaft unit 240 includes a plurality of shafts and a plurality of gears coupled to each shaft, and may be installed in combination in various forms according to the installation direction or position of the first handle 210. will be.

As shown in FIG. 6, the opening and closing device 200 has a blocking groove 250 formed at a lower portion of the opening and closing door 220 so that the lower end of the opening and closing door 220 is accessible. Inside the 250, a threshold 260 formed to be in close contact with the lower end of the opening and closing door 220 by lifting and lowering, and a spring 270 having an elastic force acting to raise the threshold 260 are installed. Therefore, when opening and closing the opening and closing door 220, the threshold 260 is always in close contact with the bottom of the opening and closing door 220 can improve the sealing performance, the ash inside the main body 100 is caught on the threshold 260 to come out This will prevent contamination of the room.

The supply device 300 is to supply the air necessary for the combustion of the coal, and the air is introduced from the upper portion of the opening and closing door 220 to adjust the amount of the air supplied while being supplied to the lower combustion frame 110 It is formed to. That is, as shown in Figures 1 to 3, the supply device 300 is that the air is sucked from the top of the opening and closing door 220 is supplied to the lower combustion frame 110, which opens the opening and closing door 220 When the heat or foreign matter coming out from the outside through the entrance 120 when the suction is to be supplied to the inside of the main body 100 again. Therefore, it is possible to prevent the heat or foreign substances to escape to the outside to increase safety and to prevent the interior from being soiled by foreign substances.

The supply device 300 is installed in the upper portion of the opening and closing door 220 as shown in Figure 7 and 8 as an embodiment, but a plurality of vents (310a) is formed on the lower surface while protruding forward to the opening and closing door ( Inlet part 310 to allow the heat or foreign matter discharged to the outside when the opening 220 is introduced with the air, the connecting pipe connected to the lower portion of the main body 100 from the rear of the inlet 310 to transport the air (320), the upper body is bent from the lower portion of the main body 100 to the upper end is installed in the bent interior of the supply pipe 330 and the supply pipe 330 is connected to the connecting pipe 320, installed through the front It comprises a control plate 340 for adjusting the supply amount of air through the opening and closing of the supply pipe 330 while moving forward and backward using the second lever 340a.

Therefore, it is possible to easily control the combustion by the control plate 340.

The discharge device 400 is installed below the lower main body 100 to receive and discharge the ash falling from the combustion mold 110, while driving the screw feeder 420 using the second handle 410. It is formed to discharge to the outside. That is, the end of the discharge device 400 is to be installed through the outer wall of the building from the lower portion of the main body 100 as shown in Figures 1 to 3 to be installed out of the building, to enter and exit the outside to discard ashes It can be easily discharged from the room without the need, and the use of the screw feeder 420 can prevent the outside cold air from entering the room.

The discharge device 400 is formed in the shape of a drawer so as to receive the falling ash is installed in the combustion frame 110, as shown in Figure 3 to 9 as an embodiment, while the bottom plate 430a is forward and exit It includes a primary ash tray 430 formed to drop the discharged ash to the lower portion and discharged to the lower portion and the hopper 440 is installed in the lower portion of the primary ash tray 430 and receives the falling ash to supply to the screw feeder 420 It is configured by. At this time, the primary ash tray 430 collects the ash falling from the bottom of the main body 100 in the form of a drawer, and when the bottom plate 430a is pulled forward, the ash is pushed down to fall to the bottom. By configuring the primary ash tray 430 to receive the ash falling from the combustion mold 110 as described above, when the ash falls directly into the hopper 440, the ash hardens after a long time and the ash is hardly discharged. It can be supplemented.

On the other hand, the present invention is installed on the path of the exhaust pipe 130 as an embodiment as shown in Figure 10, the heat storage enclosure 500 to collect and store the waste heat discharged, the exhaust pipe inside the heat storage enclosure 500 Waste heat introduced through the 130 is a hot air pipe 510 wound to be supplied from the surface, a suction pipe 511 that is connected to the front end of the hot air pipe 510 to suck the heat raised to the upper, It is connected to the other end of the hot air pipe 510 is installed in the circulation blower 520 for forcibly inhaling and discharging air and the transfer pipe 530 connected to the circulation blower 520 to transfer the heat to another place It is configured to include.

Through this configuration, the waste heat exhausted through the exhaust pipe 130 may be supplied with the warm air that is raised to the upper part of the room by the operation of the circulation blower 520 and the waste heat supplied from the heat storage enclosure 500 through the hot air pipe 510. It can be recycled by transporting to the transfer pipe 530, the hot air heated in the hot air pipe 510 can be used for heating by supplying the warm air raised in the indoor room or warehouse required.

At this time, it is preferable that a filter 512 is installed at the front end of the suction pipe 511 to cleanly filter the air introduced from the room.

Furthermore, as shown in Figure 11 and 12, the fireplace to which the present invention is applied may be further applied to the blowing means.

In other words, as shown in Figure 11, on the exhaust pipe 130 of the main body 100 may be further provided with a blowing means for forcibly discharging the air inside the main body 100 to the outside.

In this case, the blowing means may be configured to install a blower 600 inside the exhaust pipe (130).

In addition, as shown in FIG. 12, a blower 600 ′ is installed outside the exhaust pipe 130 of the main body 100, and the exhaust port 610 ′ of the blower 600 ′ has a discharge direction of the exhaust pipe 130. Insert so that it faces up.

At this time, if the air blower (600 ') is blown, the wind is blown through the exhaust pipe (130') in the discharge direction, thereby forcibly discharging the air inside the main body (100) and the heat storage enclosure (500), and thus the combustion efficiency. It can be increased.

The blower 600 is configured to have a blower 600 installed inside the exhaust pipe 130 of the main body 100 or the blower 600 'is installed outside the exhaust pipe 130 of the main body 100. The means is preferably applied to the fireplace in the exemplary view as shown in FIG. 10.

Of course, although not shown in the drawings, even in the fireplace without the configuration of the enclosure 500 is made of a configuration that the blower 600 is installed inside the exhaust pipe 130 of the main body 100 as described above or the exhaust pipe of the main body 100 130 may be applied to the blowing means consisting of a configuration in which the blower (600 ') is installed outside.

On the other hand, the vent 310a formed in the inlet 310 of the supply device 300 in the fireplace according to the present invention is preferably formed larger in size farther than the suction side of the upper end of the connecting pipe (320). .

That is, as the vent 310a is larger than the suction side, which is the upper end of the connection pipe 320, the size is formed to be large so that heat or foreign substances discharged to the outside when the opening and closing door 220 is introduced together with air. Heat or foreign substances discharged to the outside during the opening of the opening / closing door 220 may be introduced together with air through the entirety of the vents 310a formed in plural on the lower surface of the inlet 310.

In other words, heat or foreign matter stably flows in the air together with the air through the air vent 310a of the entire region without being limited to any part of the air vent 310a formed on the lower surface of the inlet 310. It will be possible.

According to the present invention having the above-described configuration, the opening and closing of the door is safe, and by re-suctioning the heat and foreign substances escaped through the opening door to prevent the risk of burns and contamination by foreign matters, and occurs after burning of the coal It is very convenient to use by making it easy to discharge the ash to the outside.

In addition, by allowing the coal supplied into the combustion chamber to naturally gather in the center of the combustion frame and burn it, the combustion of the carbon is smooth and stable, and the ash remaining on the combustion frame can be easily dropped to the lower portion, thereby making it easier to process the residue. .

In addition, by making it possible to utilize the heat exiting the exhaust pipe through the exhaust pipe for cooking or heating, it is possible to reduce the fuel cost or heating cost.

100: main body 110: combustion frame
110a: fixed frame 110b: floating frame
110c: first lever
120: doorway 130: exhaust pipe
140: fireproof wall 150: cooking home
160: compartment space
200: opening and closing device 210: first handle
220: opening and closing door 230: screw
240: gear shaft unit 250: blocking groove
260: threshold 270: spring
300: supply device 310: inlet
320: connector 330: supply pipe
340: throttle 340a: second lever
400: discharge device 410: second handle
420: screw feeder 430: primary ash tray
430a: bottom plate 440: hopper
500: heat storage enclosure 510: hot air pipe
511: suction pipe 512 filter
520: circulating blower 530: transfer pipe
600, 600 ': Blower 610': Outlet

Claims (15)

A main body divided into an upper part formed with a combustion space in the lower part of which the combustion frame is installed and a combustion space in the upper part of the combustion frame so that ash falls down while collecting coals;
An opening / closing device installed at the front of the main body to open and close the doorway, the opening and closing device being installed to open and close the doorway by elevating the door by using a first handle;
A supply device configured to supply air for combustion of the coal, wherein air is introduced from an upper portion of the opening / closing door to be supplied to a lower portion of the combustion frame, and an amount of the supplied air is controlled; And
And a discharge device installed below the lower main body and configured to discharge the falling ash from the combustion frame and to discharge the ashes while driving the screw feeder using a second handle.
[2] The apparatus according to claim 1,
A fireproof wall is formed around the combustion frame, characterized in that the fireplace is characterized in that the inclined so as to collect the fire (위로) gathered over the central combustion frame.
The method according to claim 1, wherein the combustion frame,
A fixing frame forming an outer portion while being fixedly installed on the lower main body;
A flow frame installed inside the fixing frame, the shaft being installed to rotate at an angle to both sides while supporting the bullet so as not to fall out; And
And a first lever coupled to the flow frame, the first lever being inclined at an angle to rotate the flow frame to both sides to drop ash.
The method of claim 1, wherein the cooking groove is formed on the upper end of the main body,
And a partition space formed at the lower portion of the cooking groove so that the heat discharged is introduced and discharged through the exhaust pipe after circulation.
The apparatus according to claim 1,
A screw installed in front of the upper main body and screwed through the upper end of the opening / closing door; And
And a gear shaft unit connecting between the top of the screw and the first handle.
The apparatus according to claim 1,
A blocking groove formed under the opening door and configured to allow a lower end of the opening door to enter and exit the door;
A threshold installed inside the blocking groove and in close contact with a lower end of the opening / closing door through lifting; And
And a spring installed inside the blocking groove and having an elastic force acting to raise the threshold.
The method according to claim 1, wherein the supply device,
An inlet part installed at an upper part of the opening / closing door and protruding forward to form a plurality of vents on a lower surface thereof so that heat or foreign substances discharged to the outside when the opening / closing door is opened together with air;
A connecting pipe connected to the lower part of the main body from the rear of the inlet to allow air to be transferred;
A supply pipe bent upward from the lower part of the main body so that an upper end thereof is connected to the connection pipe; And
And a control panel installed in the bent interior of the supply pipe and adjusting the supply amount of air through opening and closing of the supply pipe while moving forward and backward using the second lever installed through the front.
The method according to claim 1, wherein the discharge device,
A primary ash tray formed in the shape of a drawer so as to receive the falling ash installed in the lower part of the combustion frame, the bottom plate being discharged by dropping the received ash downward while entering and exiting the bottom plate; And
And a hopper installed in the lower portion of the primary ash tray and receiving the falling ash to supply the screw feeder.
The heat storage body of claim 1, further comprising: a heat storage enclosure installed on a path of the exhaust pipe and collecting and passing waste heat discharged from the main body;
A warm air pipe wound to transfer waste heat introduced into the heat storage enclosure and heat from the upper part of the room;
A suction pipe which is connected to the front end of the hot air pipe to suck the indoor heat that has been raised to the upper part of the room;
A circulation blower connected to the other end of the hot air pipe to forcibly suck and discharge air; And
And a transfer pipe connected to the circulation blower to transfer heat to another place.
10. The fireplace according to claim 1 or 9, further comprising blowing means for forcibly discharging the air inside the main body to the outside on the exhaust pipe of the main body.
The fireplace according to claim 10, wherein the blowing means is configured by installing a blower inside the exhaust pipe.
The fireplace according to claim 10, wherein the blower means comprises a blower installed outside the exhaust pipe, and the outlet of the blower is inserted and installed to face the discharge direction of the exhaust pipe.
The fireplace according to claim 7, wherein the air vent formed in the inlet of the supply device has a larger size as it is farther from the suction side, which is the upper end of the connection pipe.
10. The fireplace of claim 9, wherein a filter for filtering the air when the hot air is sucked in the room is further provided at the front end of the suction pipe.
10. The fireplace of claim 9, wherein the hot air duct is formed of a bellows to increase the surface area.

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