FIREPLACE BOX

Abstract

CHIMNEY ENCLOSURE The invention relates to an enclosure (110) for a chimney (100) comprising a stack (102) and a cap (104). The enclosure (110) has a side wall (110a) through which at least one window (116) passes, forming a flue open at both ends. The lower end forms a base (110b) fixed to the top of the stack (102), and the upper end forms a seat (110c) onto which a lower portion of the cap (104) is fixed. The base (110b) defines a lower opening (112a), and the seat (110c) defines an upper opening (112b). For each window (116), there is a hatch (114) removably fixed to the side wall (110a). Fig. 2

Description

Title of the invention: FIREPLACE BOX technical field

[0001] The present invention relates to a chimney box which can be implemented, in particular, in the context of the renovation of an existing flue, as well as a chimney comprising such a box. PREVIOUS STATE OF THE ART

[0002] In older buildings, a chimney flue leads to a chimney which is usually located on the roof of the building. Older heating systems generally operate with natural draft, meaning that the heating system is connected to a flue that channels the combustion products, and where the flue is constructed of masonry and extends to the outside of the living space.

[0003] New heating installations generally operate with pressurized draft and require a pipe that runs from the heating installation to the chimney through the flue.

[0004] For example, when renovating a house, it is possible to introduce a pipe into the flue to connect a heating system and adapt the chimney to this new installation.

[0005] However, in the case of a collective installation, it is not possible to have both natural draft and pressurized draft heating systems because the chimney is not suitable for such an installation. Therefore, it is necessary to replace all the systems at the same time. Description of the invention

[0006] An object of the present invention is to provide a fireplace box which allows for different technologies for the same fireplace.

[0007] To this end, a chimney box comprising a chimney stack and a cap is proposed, said box comprising:

[0008] - a side wall through which at least one window passes, where said side wall forms an open conduit at both ends, where the lower end forms a base intended to be fixed to the top of the stump, where the upper end forms a seat on which a lower part of the cap is intended to be fixed, where the base delimits a lower opening and where the seat delimits an upper opening, and

[0009] - for each window, a hatch fixed in a removable manner to the side wall.

[0010] Advantageously, the attachment of each hatch to the side wall is watertight.

[0011] The invention also proposes a chimney comprising:

[0012] - a chimney stack delimiting at least one chimney flue,

[0013] - a hat having an opening in its lower part, and

[0014] - a box according to one of the preceding variants, where the base is fixed to the top of the stack, where the lower part of the cap is fixed to the seat, where the lower opening is fluidly connected to the chimney duct(s) delimited by the stack and where the upper opening is fluidly connected to the opening of the cap.

[0015] Advantageously, the chimney comprises at least one pipe housed in said at least one chimney flue, and a first end of the pipe or pipes is intended to be fluidly connected to a combustion source and a second end is fluidly connected to one of the windows and fixed to the side wall corresponding to said window.

[0016] Advantageously, the pipe or pipes fixed at a window exit to the outside of the side wall via a terminal nose. Brief description of the drawings

[0017] The features of the invention mentioned above, as well as others, will become clearer upon reading the following description of an exemplary embodiment, said description being made in relation to the accompanying drawings, among which:

[0018] [Fig-1] shows a perspective view of a chimney fitted with a box according to the invention, and

[0019] [Fig.2] shows a cross-sectional view of the chimney of [Fig.1] by the vertical plane P.

[0020] DETAILED STATEMENT OF IMPROVEMENTS

[0021] Fig. 1 shows a chimney 100 according to the invention and which comprises a base 102, a cap 104 above the base 102 and a box 110 between the base 102 and the cap 104.

[0022] Typically, the chimney stack 102 is mounted on a roof and delimits the various chimney flues that lead to the different combustion sources, such as boilers, open or closed fireplaces,...

[0023] Fig. 2 shows chimney 100 in cross-section.

[0024] The chimney stack 102 delimits at least one chimney flue 202a-b, each leading to one or more fireplaces. The chimney stack 102 is constructed in a conventional manner, for example by brickwork or other masonry.

[0025] The cap 104 has in its lower part an opening 106 in fluidic communication with the chimney ducts 202a-b of the stack 102, and in its upper part a cap 108 which prevents rainwater from entering the chimney 100. The cap 104 also has between the opening 106 and the cap 108, gaps 109 which allow the fumes arriving through the opening 106 to pass horizontally.

[0026] In the event of renovation of at least one fireplace operating with the chimney 100, a box 110 is inserted between the chimney stack 102 and the cap 104.

[0027] The box 110 has a side wall 110a which forms a conduit open at both ends, i.e. the side wall 110a is closed on itself leaving the ends open.

[0028] The lower end of the box 110 forms a base 110b which is fixed to the top of the stump 102 and where the upper end of the box 110 forms a seat 110c on which the lower part of the cap 104 is fixed.

[0029] The base 110b defines a lower opening 112a and the seat 110c defines an upper opening 112b. The lower opening 112a is in fluidic continuity with the chimney duct(s) 202a-b delimited by the base 102, i.e., fluidly connected to said chimney duct(s) 202a-b. The upper opening 112b is in fluidic continuity with the opening 106 of the cap 104, i.e., fluidly connected to said opening 106. The lower opening 112a and the upper opening 112b are inscribed in generally horizontal planes.

[0030] The shape of the side wall 110a is adapted to the shape of the stem 102 so as to ensure that the fumes which pass into the stem 102 are captured by the lower opening 112a.

[0031] The shape of the side wall 110a is adapted to the shape of the cap 104 so as to ensure that the fumes which pass through the upper opening 112b are captured by the opening 106 of the cap 104 to reach the cap 104 and its interstices 109.

[0032] The base 110b is fixed to the stump 102 and the seat 110c is fixed to the cap 104 by any suitable means such as screws.

[0033] The vertically extending side wall 110a includes at least one hatch 114 removably attached to the side wall 110a by any suitable fastening means. An attachment is considered removable when the hatch 114 can be separated from the side wall 110a without damage to either.

[0034] Each hatch 114 closes a window 116 through the side wall 110a. Thus, for each window 116, there is a hatch 114.

[0035] Thus, when a natural draft combustion source is replaced by a pressurized draft combustion source, a pipe 204 is installed in the chimney 100 and the corresponding chimney flue 202a-b with a first end of the pipe 204 fluidly connected to said combustion source and a second end of the pipe 204 fluidly connected to one of the windows 116 and fixed to the side wall 110a corresponding to said window 116. When a pipe 204 is fixed at the level of a window 116, the hatch 114 closing said window 116 is removed.

[0036] Thus, thanks to this installation, it is possible to renovate only part of the combustion sources that the chimney 100 serves, since the new installations pass through the pipes 204 and the old installations continue to pass through the cap 104, and this without it being necessary to modify the chimney stack 102 and the cap 104.

[0037] The fumes from the pipes 204 then escape to the sides and more particularly here horizontally.

[0038] To limit smoke loss through the windows 116 when not in use, the fixing of each hatch 114 to the side wall 110a is airtight, for example by installing a seal between the hatch 114 and the side wall 110a.

[0039] Each pipe 204 which is fixed at the level of a window 116, opens here outside the side wall 110a by way of a terminal nose 206.

Claims

Demands

1. Chimney (100) comprising: - a stack (102) delimiting at least one chimney flue (202a-b), - a cap (104) having an opening (106) at its lower end and a cap (108) at its upper end that prevents rainwater from entering the chimney (100), wherein the cap (104) has gaps (109) between the opening (106) and the cap (108) that allow the fumes arriving through the opening (106) to pass horizontally, and - a casing (110) comprising a side wall (110a) through which at least one window (116) passes, wherein said side wall (110a) forms a flue open at both ends, wherein the lower end forms a base (110b) fixed to the top of the stack (102), wherein the upper end forms a seat (110c) on which the lower part of the cap is fixed (104), where the base (110b) delimits a lower opening (112a) and where the seat (110c) delimits an upper opening (112b),and where the lower opening (112a) is fluidly connected to the chimney flue(s) (202a-b) delimited by the chimney stack (102) and where the upper opening (112b) is fluidly connected to the opening (106) of the cap (104), - at least one pipe (204) housed in said at least one chimney flue (202a-b), where a first end of the pipe(s) (204) is intended to be fluidly connected to a combustion source and a second end is fluidly connected to one of the windows (116) and fixed to the side wall (110a) corresponding to said window (116), and - for each window (116) to which no pipe (204) is connected, a hatch (114) removably fixed to the side wall (110a).

2. Chimney (100) according to claim 1, characterized in that the pipe or each pipe (204) which is fixed at the level of a window (116), opens to the outside of the side wall (110a) by way of a terminal nose (206).

3. Chimney (100) according to any one of claims 1 or 2, characterized in that the attachment of each hatch (114) to the side wall (110a) is airtight.

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