JP2012002375A - Heating apparatus by the window - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a window-side heating apparatus which is excellent in thermal efficiency and can further save energy, in the heating apparatus for preventing cold draft in a breast wall under a window.SOLUTION: The window-side heating apparatus is constituted by two hot water panels 1 which are equipped respectively with a heat radiation plane which radiates heat by the circulation of hot water supplied from a hot water supply in a plane thereof, and are assembled in parallel and in juxtaposition in a state with the heat radiation planes opposed through a gap for ventilation. It is configured so that air of a floor side is discharged to an upper window 8 side while being warmed with the gap for ventilation, by placing the heat radiation plane in parallel to a wall face 7 and mounting it in a position set apart from the floor of the breast wall.

Description

  The present invention relates to a heating device near a window, and more particularly to a heating device near a window for preventing a cold draft generated in a window of a living room in a cold season.

  In the cold season, the window glass is cooled by the low-temperature outside air, and the indoor air near the window is cooled, so that a cold air flow toward the floor, that is, a so-called cold draft occurs at the window. As a technique for preventing a cold draft, for example, a heater installed on a waist wall under a window of a living room, in which a flat panel in which two panel portions each laminated with an electric planar heating element are opposed to each other is provided. It is constructed in a simple box structure, and air on the floor side is introduced into the gap between the two panel parts from the air introduction opening at the lower part of the apparatus, and this is heated by a planar heating element, and the air at the upper end part A wall heater has been proposed in which warm air is discharged from the blowout opening to the window side to prevent the generation of cool air near the window.

JP 11-22993 A

  By the way, the wall-mounted heating device as described above directly generates heated air with a sufficient amount of heat corresponding to the entire window glass by a so-called electric heater. There is a problem that it is difficult to make it easier. In addition, since the room space under the window is occupied throughout the year, there is a problem that it interferes with daily life in a warm period when no cold draft occurs, and a structure that can be installed in a smaller space is desired.

  The present invention has been made in view of the above circumstances, and an object of the present invention is a heating device for preventing cold drafts installed on a waist wall under a window, which has excellent thermal efficiency and further saves energy. It is to provide a heating device near the window. Moreover, the other object of this invention is to provide the heating apparatus at the window which can further reduce the occupation space in a living room.

  In order to solve the above-described problems, in the present invention, a hot water circulation type device in which two hot water panels are assembled in parallel and in parallel is installed on the waist wall under the window, and the floor side is formed between the hot water panels. The air was heated and the heated air was supplied to the inside of the window glass room.

  That is, the gist of the present invention is a heating device installed on a waist wall under an indoor window, each provided with a heat radiating surface for radiating heat by circulation of hot water supplied from a hot water supply device, and for ventilation It is composed of two hot water panels assembled in parallel and in parallel with the heat dissipation surface facing each other through a gap between them, and the heat dissipation surface is parallel to the wall surface and is mounted at a position separated from the floor of the waist wall Further, the present invention resides in a heating device for a window that is configured to heat floor-side air through a ventilation gap and discharge it to an upper window side.

  In another aspect of the present invention, in order to further save space, the two hot water panels are assembled to the first hot water panel attached to the waist wall side and the first hot water panel. It consists of the 2nd warm water panel inside a room, and at least 2nd warm water panel is comprised so that separation and approach is possible with respect to the wall surface of a waist wall.

  According to this invention, since it is comprised by the hot water circulation type hot water panel, it is excellent in thermal efficiency and can achieve further energy saving. It can easily be installed in an existing room as an auxiliary facility for floor heating, and it can be used safely for a long time. Moreover, in this invention, according to the aspect comprised so that the 2nd warm water panel inside a room was able to approach / separate with respect to the wall surface of a waist wall among two warm water panels, the 2nd warm water panel at the time of non-use Can be retracted to the wall surface side, and the occupied space in the living room can be further reduced.

It is a general view of the living room which shows the installation form of the heating apparatus at the window which concerns on this invention. It is the longitudinal cross-sectional view which showed the structure and installation structure of the hot water panel in the heating apparatus by the side of the window which concerns on this invention from the side surface side. It is the longitudinal cross-sectional view which showed the structure and installation structure of the hot water panel in the heating apparatus at the window which concerns on the other aspect of this invention from the side surface side. It is a figure which shows the structure of a hot-water panel, a part figure (a) is a top view which showed the arrangement | positioning form of the water flow pipe inside a panel, and part figure (b) is a fractured | ruptured member structure of a panel along thickness direction It is the longitudinal cross-sectional view shown.

  An embodiment of a heating device near a window according to the present invention (hereinafter referred to as “heating device”) will be described with reference to the drawings. The heating device of the present invention is a device for preventing a cold draft generated at the window in the cold season, and is installed on the waist wall under the window 8 in the room, as indicated by reference numeral (S) in FIG. FIG. 1 shows an example in which heating devices S are installed at two locations.

  The heating device S of the present invention is composed of two hot water panels 1 as shown in FIG. Each of the hot water panels 1 has a substantially rectangular front shape that is elongated horizontally in order to be attached to the waist wall along the lower frame of the window frame. The size of the heating device S is designed as several standards in consideration of the necessary heat dissipation amount according to the area of the window 8 and the cold draft of the assumed cold draft. The long side portion (horizontal length) is set to about 80 to 250 cm, and the short side portion (height) is set to about 15 to 30 cm.

  As shown in FIGS. 2 (c) and 3 (c), each hot water panel 1 is provided with a heat radiating surface 24c that radiates heat by circulating hot water supplied from a hot water supply device (not shown). The two hot water panels 1 are assembled in parallel and in parallel with the heat radiating surface 24c facing each other through the ventilation gap 4. That is, the heating device S of the present invention includes a first hot water panel 1a attached to the waist wall side and a second hot water panel 1b inside the room assembled to the first hot water panel.

  As shown in FIG.4 (b), each warm water panel 1 is arrange | positioned at the groove | channel of the plate-shaped base material 20 as a heat insulating material which consists of a foaming resin molding, and the said one surface side (upper side of a figure) of the said plate-shaped base material. The water flow pipe 21 as the heated water circulation path, the heat diffusion sheet 23 adhered to the one surface side surface of the plate-like substrate 20, and the other surface side of the plate-like substrate 20 (the surface side opposite to the heat radiation surface 24c) ) And the protective plate 24 disposed on the outer surface side (heat radiating surface side) of the thermal diffusion sheet 23. Then, by circulating the hot water through the water pipe 21, the heat of the hot water is diffused over the entire surface of the thermal diffusion sheet 23, and the air is heated via the protective plate 24 on the one side of the plate-like base material 20. Yes.

  Specifically, the plate-like substrate 20 is configured by arranging a large number of small pieces of a thin plate-like foamed resin molded body having a thickness of about 7 to 20 mm, for example, whose planar shape is formed in an elongated rectangle. As foamed resin molded products, rigid polyurethane foam, rigid polyethylene foam, rigid polypropylene foam, polystyrene foam, phenol resin foam, rigid polyvinyl chloride foam, polymethyl methacrylate foam, polycarbonate foam, polyphenylene oxide A foam, a foam of a mixture of polystyrene and polyethylene, and the like, and the plate-like base material 20 has grooves for arranging the water pipes 21 formed on one side in a predetermined pattern when the plate-like base material is molded. Yes.

  The water conduit 21 is arranged in contact with the heat diffusion sheet 23 with respect to the groove of the plate-like substrate 20. As the water flow pipe 21, a resin pipe such as a cross-linked polyethylene pipe, a polybutene pipe, a polypropylene pipe, or a polyethylene pipe having an outer diameter of 4 to 10 mm and an inner diameter of 4 to 7 mm is used. The total length of the water pipe 21 is about 5 to 25 m by combining both the hot water panels 1. Further, in order to increase the output at the heat radiating surface 24c of the hot water panel 1 and increase the heat radiating efficiency, at least a part of the water pipe 21, for example, a linearly arranged part, has a U-shaped cross section orthogonal to the length direction. You may accommodate in the formed bowl-shaped metal heat-transfer member 22, and may be arrange | positioned in said groove | channel.

  FIG. 4A shows the internal structure of the hot water panel 1 in a plan view. As shown in FIG. 4A, the water pipes 21 are devised in arrangement and connection in each hot water panel 1. The two hot water panels 1 constitute, for example, one system of hot water circulation path. Specifically, in the first hot water panel 1 a, two water pipes 21 are arranged on the plate-like base material 20. The two water pipes 21 are horizontally extended along the length direction of the plate-like base material 20 and folded back at either the left or right end, that is, a state in which an elongated U-shape is turned sideways. It is arranged in a nested manner inside and outside. On the other hand, in the 2nd warm water panel 1b, the one water flow pipe 21 is arrange | positioned. Such a water pipe 21 can be nested in a manner that the elongated U-shape is turned sideways in the same manner as in the first hot water panel 1a, and one end side of the U-shape is folded back and attached to the U-shape. It is arranged in a state where two U characters are arranged.

  In the 1st hot water panel 1a, the hot water inlet 11 which connects the hot water supply pipe extended from the hot water supply apparatus is provided in the end of the inner water flow pipe 21, and the other end of the inner water flow pipe 21 has the second A connecting pipe 12 for supplying hot water to the hot water panel 1b is connected. In addition, a connecting pipe 12 for returning the hot water circulated through the second hot water panel 1b is connected to one end of the outer water pipe 21, and the other end of the outer water pipe 21 is extended toward the hot water supply device. A hot water outlet 14 is provided for connecting a return pipe of hot water. On the other hand, in the second hot water panel 1 b, the connecting pipe 12 is connected to one end of the water pipe 21, and the connecting pipe 13 is connected to the other end of the water pipe 21.

  That is, in the hot water circulation path in the two hot water panels 1, the hot water supplied from the water heater to the hot water inlet 11 first flows through the water pipe 21 inside the first hot water panel 1a, and then the connecting pipe 12 It flows to the water flow pipe 21 of the second hot water panel 1b via the hot water outlet, then flows to the water flow pipe 21 outside the first hot water panel 1a via the connecting pipe 13, and returns to the hot water supply device from the hot water outlet 14 The flow path is configured.

  The thermal diffusion sheet 23 shown in FIG. 4B is a flexible film or sheet having a thickness of usually 10 μm to 200 μm, preferably 30 μm to 100 μm and excellent in thermal conductivity, such as an aluminum foil, a tin foil, It is comprised by metal foils, such as copper foil and stainless steel foil, metal woven fabrics and nonwoven fabrics, a resin film or a resin sheet, or a laminated sheet combining these. The thermal diffusion sheet 23 is adhered to the surface of the plate-like substrate 20 with an adhesive, an adhesive film, or the like.

  In each hot water panel 1, the protection plate 24 is disposed in order to protect the plate-like substrate 20 and the heat diffusion sheet 23 on the surface thereof and to improve the design. As the protective plate 24, a thin plate made of various metals can be used as long as it is a thin plate member excellent in impact resistance and heat conduction performance. For example, the protective plate 24 includes a composite plate obtained by laminating metal sheets on both sides of a synthetic resin sheet, that is, a composite plate having a layer structure of metal sheet / resin sheet / metal sheet.

  As the composite plate as described above, a sheet having a thickness of about 0.1 to 0.5 mm made of aluminum (including an aluminum alloy) or the like, and a sheet having a thickness of about 0.6 to 1.0 mm made of a thermoplastic resin such as polyolefin. The thing which laminated | stacked the sheet | seat as a core material is mentioned. Such a composite plate is manufactured by superposing aluminum sheets on both surfaces of a melt-extruded synthetic resin sheet, passing the sheet between rotating rolls, and adhering using an adhesive. Examples of such a composite plate include “Alpolic” (registered trademark) manufactured by Mitsubishi Plastics.

  Further, in the heating device of the present invention, in consideration of the design in the living room, at least the surface of the protection plate 24 facing the room inside of the second hot water panel 1b (the second in FIGS. 2 and 3). The left surface of the hot water panel 1b), that is, the surface of the protective plate 24 disposed on the other surface side of the plate-like substrate 20 to which the thermal diffusion sheet 23 is not adhered is applied by painting, film coating, polishing finish or the like. It is preferably formed on the design surface.

  Furthermore, as shown to Fig.4 (a), in order to ensure the rigidity as a panel and to improve the designability, as for each hot water panel 1, the outer peripheral part is framed with the frame-shaped frame member 25. As shown in FIG. For example, as shown in FIG. 4B, the frame member 25 is made of an extruded aluminum material having a hollow structure that opens at both ends, and is arranged vertically and horizontally on the panel so that the water conduit 21 and the heat diffusion sheet 23 are attached. The plate-like substrate 20 and the protective plates 24 on both sides thereof are fixed from the outer peripheral side. The vertical and horizontal frame members 25 are connected by a corner member in which two bars that can be inserted into the end openings of these frame members project in a direction perpendicular to each other. The single structure of the hot water panel 1 as described above is disclosed, for example, in Japanese Patent Application Laid-Open No. 2009-210189 as a wall-mounted heater.

  Moreover, although not shown in figure, in each hot water panel 1, it replaces with the plate-shaped base material 20 which consists of the above foamed resins, and can also use the plate-shaped base material as a heat storage material. That is, each of the two hot water panels 1 is composed of a plate-like base material formed by enclosing a heat storage material in a flat container, a water pipe 21, a heat diffusion sheet 23, and a protection plate 24 similar to those described above. Also good. And like the above-mentioned aspect, Preferably, it is the surface of the protection board 24 orient | assigned to the room inner side of the 2nd warm water panel 1b (it is on the other surface side of the plate-shaped base material to which the thermal diffusion sheet 23 is not stuck) The surface of the arranged protective plate 24) is formed on the design surface.

  The plate-like base material as the heat storage material is formed in a rectangular parallelepiped shape having a flat outer shape and has a groove for arranging a water pipe on the one surface corresponding to the maximum surface, like the plate-like base material 20 of the foamed resin. And a liquid heat storage material sealed in the container. Examples of the heat storage material include organic compounds such as normal paraffin, and inorganic hydrates such as sodium sulfate decahydrate and sodium acetate trihydrate. When the plate-like base material is configured as a heat storage material as described above, the heat of hot water can be stored in the plate-like base material. Therefore, it is possible to obtain a substantially constant heating effect and use the heat without waste, thereby obtaining a further energy saving effect.

  As shown in FIG. 1, the heating device S of the present invention supplies the heated air to the vicinity of the glass surface of the window 8, so that the heat radiating surface 24 c (see FIGS. 2 and 3) of the hot water panel 1 is used as the wall surface 7. The floor side air is heated at the ventilation gap 4 (see FIGS. 2 (c) and 3 (c)), and is installed at a position parallel to the floor and spaced from the floor of the waist wall. It is comprised so that it may discharge | release to the window 8 side.

  The size of the gap 4, that is, the separation distance between the first hot water panel 1 a and the second hot water panel 1 b is normally set to 20 to 70 mm, preferably 40 to 50 mm. The reason why the size of the gap 4 is set in the above range is as follows. That is, when the size of the gap 4 is smaller than 20 mm, the effect of increasing the temperature of the air in the gap 4 is increased, but the thermal capacity tends to be reduced because the space volume is small. On the other hand, when the size of the gap 4 exceeds 70 mm, the temperature of the heating air generated in the gap 4 becomes low and further spreads over a wider range, so that a cold draft is sufficiently generated. Cannot be suppressed.

  Furthermore, as shown in FIG.2 and FIG.3, in the heating apparatus S of this invention, in order to reduce the occupation space of a living room as much as possible, the 1st warm water panel 1a is attached to the waist wall side, and 2nd warm water The panel 1b is assembled to the first hot water panel 1a, and at least the second hot water panel 1b is configured to be able to approach and separate from the wall surface 7 of the waist wall. In other words, the second hot water panel 1b of the hot water panels 1 has a so-called movable structure that protrudes from the waist wall when in use and close to the waist wall when not in use.

  Examples of the movable structure include a structure in which the entire two hot water panels 1 move relative to the waist wall, or a structure in which only the second hot water panel 1b moves. Specifically, the structure shown in FIG. 2 is given as the structure in which the entire two hot water panels 1 are moved, and the structure shown in FIG. 3 is given as the structure in which only the second hot water panel 1b is moved.

  In the heating device S shown in FIG. 2, the two hot water panels 1 are assembled in parallel and in parallel by being connected by a plurality of beam-like spacers 31 laid across the frame members 25 of these hot water panels. It has been. On the other hand, a box-shaped casing 5 having a shape in which one side of a hexahedron is opened is attached to the waist wall under the window 8 so that the open portion faces the inside of the room. Is housed in the casing 5 so as to be slidable. In other words, the two hot water panels 1 are attached to the waist wall so as to be housed in a state in which the air gap 4 having a certain size is held.

  The left and right frame members 25 (vertical frames) of each hot water panel 1 have a horizontal groove (not shown) cut out at a substantially central portion of the length, and the inner surface of the casing 5 A horizontal ridge 51 is provided as a guide to fit in the groove. Furthermore, a stopper 61 formed by bending the end of an elongated flat plate is rotatably attached to both inner side surfaces (left and right inner side surfaces) of the casing 5.

  The stopper 61 is pivotally attached to the fulcrum of the inner surface of the casing 5 at the base end, and the bent portion at the tip is inserted into the gap 4 between the first hot water panel 1a and the second hot water panel 1b. . Moreover, the length of the stopper 61 is set such that only the bent portion at the tip protrudes from the wall surface 7 when the longitudinal direction of the stopper is in a horizontal state, as shown in FIG. Accordingly, the hot water panel 1 can be slid back and forth along the ridge 51, and the moving end of the hot water panel 1 can be moved by the hooking function of the stopper 61 with respect to the first hot water panel 1a when moved to the inside of the room. Can be defined.

  That is, when not in use, the heating device S may be in a state in which the two hot water panels 1 are housed in the casing 5 as shown in FIG. In use, the second hot water panel 1b is pulled out to the inside of the room as shown in FIG. 2 (b), and the first hot water panel 1a is substantially flush with the wall surface 7 as shown in FIG. 2 (c). By setting the position, the gap 4 facing the heat radiation surface 24c and opening up and down can be positioned directly below the window 8.

  In the heating device S shown in FIG. 3, the two hot water panels 1 are assembled in parallel and in parallel by being connected by a plurality of extendable spacers 32 laid across the frame members 25 of these hot water panels. It has been. And the 1st hot water panel 1a of the two hot water panels 1 is attached to the waist wall under the window 8. FIG. In other words, the second hot water panel 1b is configured to be able to approach and separate from the first hot water panel 1a fixed to the waist wall.

  The spacer 32 is configured by connecting two links made of an elongated flat plate, and is attached across the left and right frame members 25 (vertical frames) of each hot water panel 1. The tip of one link corresponding to the connecting portion of the spacer 32 (the left end of the right link in FIG. 3) is formed by bending in the thickness direction of the link, and the two links extend linearly. In this state, a locking piece is provided as a stopper for receiving the side edge of the other link (the left link in FIG. 3). Therefore, the second hot water panel 1b can be slid until the spacer 32 extends linearly, and the first hot water panel 1a and the second hot water panel 1b are provided by the stopper function of the locking piece of the spacer 32. The gap 4 can be maintained at a constant size.

  Further, an expansion / contraction guide 33 in which an elastic body 34 such as a coil spring is inserted is bridged over the horizontal frame of the frame member 25 of each hot water panel 1. The telescopic guide 33 is configured by fitting a plurality of, for example, four cylindrical bodies in a nested manner and providing a latching portion at the end of each cylindrical body. Such an expansion / contraction guide 33 is a slip prevention means for moving the second hot water panel 1b close to and away from the first hot water panel 1a while maintaining a parallel and parallel state to the first hot water panel 1a.

  Further, the elastic body 34 is directly bridged over the frame members 25 of the two hot water panels 1, and when the second hot water panel 1 b is separated from the first hot water panel 1 a, the second hot water panel is concerned. Energize in the direction of pulling back. Accordingly, when the second warm water panel 1b is separated from the first warm water panel 1a, the center portion of the spacer 32 is slightly pushed down to bring the elastic body 34 to the front surface of the first warm water panel 1a by the restoring force. The second hot water panel 1b can be returned to the stacked state.

  That is, when not in use, the heating device S is in a state in which the second hot water panel 1b is superimposed on the front surface of the first hot water panel 1a as shown in FIG. In use, the second hot water panel 1b is pulled out to the inside of the room as shown in FIG. 3 (b), and the second hot water panel 1a is used as the second hot water panel as shown in FIG. 3 (c). By separating the panel 1b apart from each other by a predetermined distance, the gap 4 that is opposed to the heat radiating surface 24c and opens up and down can be positioned directly below the window 8.

  As shown in FIG. 1, the heating device S of the present invention is attached to the waist wall along the window frame (lower frame) of the window 8 and at a position separated from the floor. As described above, in the embodiment shown in FIG. 2, the two hot water panels 1 are pulled out from the casing 5 so that the gap 4 is positioned immediately below the window 8. Moreover, in the aspect shown in FIG. 3, the 2nd warm water panel 1b is moved ahead with respect to the 1st warm water panel 1a so that the clearance gap 4 may be formed directly under the window 8. FIG. Then, the hot water supplied from the hot water supply device (not shown) is circulated through the first hot water panel 1a and the second hot water panel 1b, the air on the floor side is heated in the gap 4, and the air is passed through the waist wall. Supply to the upper window 8.

  As the hot water supply device, for example, a hot water heating device or a boiler device for producing warm water by gas combustion or electric power is used. The hot water supply device includes a header device, a circulation pump, a control device that detects the temperature of the circulating hot water and controls the heating power and the flow rate, and the heating device S has a temperature of about 40 to 80 ° C. from the hot water supply device. Hot water is supplied. And in the heating apparatus S, after circulating said warm water to the 1st warm water panel 1a and the 2nd warm water panel 1b, warm water of about 30-60 degreeC is returned to a hot water supply apparatus.

  As described above, the heating device S of the present invention is a hot water circulation type device in which two hot water panels 1 are assembled in parallel and in parallel, and air on the floor side is removed by a gap 4 between the hot water panels 1. By heating and supplying the heated air to the inside of the glass room of the window 8, the occurrence of a cold draft is prevented. In the present invention, since heated air is generated by circulation of hot water, the heat efficiency is superior to a method using an electric heater or the like, and energy saving can be achieved. Moreover, it can be easily installed even in an existing room as an auxiliary facility of the floor heating facility, and can be used safely for a long time.

  Furthermore, as described above, the heating device S of the present invention is configured such that at least the second hot water panel 1b can be moved toward and away from the wall surface 7 of the waist wall, and can be accommodated on the waist wall side when not in use. it can. In the aspect shown in FIG. 2, it can be set as the state which accommodated the two hot water panels 1 in the casing 5, and in the aspect shown in FIG. 3, it is the 2nd hot water panel on the front surface of the 1st hot water panel 1a. It can be set as the state which piled 1b. Therefore, the occupied space in the room can be reduced in a warm period when no cold draft occurs.

DESCRIPTION OF SYMBOLS 1: Hot water panel 1a: 1st hot water panel 1b: 2nd hot water panel 11: Hot water inlet 12: Connecting pipe 13: Connecting pipe 14: Hot water outlet 20: Plate-shaped base material 21: Water flow pipe 22: Metal heat transfer Member 23: Thermal diffusion sheet 24: Protection plate 24c: Heat radiation surface 25: Frame member 31: Spacer 32: Spacer 33: Expansion / contraction guide 34: Elastic body 4: Gap 5: Casing 51: Projection 61: Stopper 7: Wall surface 8: Window S: Heating device

Claims (6)

  A heating device installed on a waist wall under a window in a room, each provided with a heat radiating surface that dissipates heat by circulating hot water supplied from a hot water supply device, and a heat radiating surface provided through a ventilation gap Consists of two hot water panels assembled in parallel and in parallel with each other, and the heat radiation surface is parallel to the wall surface and is mounted at a position separated from the floor of the waist wall, thereby venting the air on the floor side A heating device near a window, wherein the heating device is configured to heat in a gap between the two and discharge to the upper window side.   The two hot water panels are composed of a first hot water panel attached to the waist wall side and a second hot water panel inside the room assembled to the first hot water panel, and at least the second hot water panel is The heating device near a window according to claim 1, wherein the heating device is configured to be close to and away from the wall surface of the waist wall.   The heating apparatus for a window according to claim 2, wherein the two hot water panels are attached to the waist wall so as to be housed in a state in which a certain size of air gap is maintained.   The heating apparatus for a window according to claim 2, wherein the second hot water panel is configured to be close to and away from the first hot water panel fixed to the waist wall.   Each of the two hot water panels includes a plate-like base material made of a foamed resin molded body, a water pipe as a hot water circulation path disposed in a groove on one side of the plate-like base material, and one surface of the plate-like base material It is mainly composed of a heat diffusion sheet adhered to the side surface, and protective plates respectively disposed on the other surface side of the plate-like substrate and the outer surface side of the heat diffusion sheet, and the second hot water panel room The heating device for a window according to any one of claims 2 to 4, wherein the surface of the protective plate directed inward is formed on a design surface.   Each of the two hot water panels includes a plate-like base material formed by enclosing a heat storage material in a flat container, a water pipe as a hot water circulation path disposed in a groove on one surface side of the plate-like base material, and a plate Mainly composed of a heat diffusion sheet adhered to one surface of the plate-shaped substrate, and a protective plate respectively disposed on the other surface side of the plate-shaped substrate and the outer surface side of the heat diffusion sheet. The heating apparatus for a window according to any one of claims 2 to 4, wherein the surface of the protective plate directed to the room inside of the hot water panel is formed on a design surface.

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