KR101296047B1 - Floor heating system - Google Patents

Abstract

PURPOSE: A floor heating device is provided to maximize a heating efficiency, and to save a construction cost and a maintenance cost by solving a water leak problem according to a pressure generation and an expansion of a liquid thermal medium through a connector for a hermetic sealing. CONSTITUTION: A floor heating device comprises a heating pipe (100), a first heating cable support member (200), a connecter (400) for a hermetic sealing, a heating cable (500), a backup heating cable (600), and a control unit (700). The heating pipe is reclamation-installed in a bottom surface where a heating is required. A thermal medium (50) in a liquid state having a weight% of 10% of a singlewalled carbon nanotube (SWCNT), 5% of crystal, 5% of vermiculite, 80% of water is filled in an inside by mixing the vermiculite and the crystal which are a natural ore material, and the SWCNT which has a heat conduction characteristic into water. The first heating cable support member has both sections where multiple anti-rotation projection parts not rotated by being fixed in an inside are formed. The connector for the hermetic sealing includes a first coupler and a second coupler, and is manufactured to a metal material in which a second heating cable support member is mounted. The heating cable comprises a 2 line which heats and conducts the thermal medium by flowing in an inside of the connector for the hermetic sealing and the heating pipe through the first/the second heating cable support members. The backup heating cable comprises the 2 line in order to prepare for a disconnection of the heating cable. The control unit controls a temperature set up of the heating cable, and ON/OFF controls a main power source of the floor heating device. [Reference numerals] (700) Control unit; (AA) Heat medium material (weight%); (BB) Water (80%); (CC) Single-walled carbon nanotube (10%); (DD) Crystal (5%); (EE) Vermiculite (5%)

Description

Floor heating system {Floor Heating System}

The present invention relates to a floor heating device, and more particularly, in order to improve heating efficiency of solidified fruit vegetables of a known floor heating device, a heating cable comprising a single-walled carbon nanotube and crystals and vermiculite mixed with water is heated. It relates to a floor heating device to fill the incoming heating pipe.

In general, floor heating is mainly performed by a boiler. A method of obtaining a floor heating effect by heating water in which a heat source generated by boiler operation heats a heat medium and forcibly circulating a heat medium in an open heating tube through a circulation pump has been used.

Boiler method has a lot of energy lost through the circulation process compared to the energy efficiency used, and due to the difficulty of construction and maintenance, high maintenance cost, space utilization of the boiler room recently, a method of heating the floor without the boiler has been developed. It is applied to construction. Boilerless floor heating is filled with heating medium (water, oil or liquid mixture) inside the heating tube, and both ends of the heating tube are closed and the heating cable is inserted into the heating tube and the heating cable is heated. It is a floor heating device in which the heating medium is heated, conducted, and radiated. Such a heating device has advantages of low energy loss, simple construction method, low heating cost, and simple use method compared to energy efficiency used.

However, this method finishes by pressurizing the finish part and heating tube by heating the heating cable in the heating tube with both ends closed and heating to form internal pressure by expanding the heat medium (water, oil or liquid mixture) filled in the closed space. There is a problem that bursts the end and leaks (oil) phenomenon, a load occurs in the heating cable due to the leak (oil) phenomenon, the loss of self or the heating tube burns due to overheating.

As a way to solve the heat expansion and pressure generation problem, the pressure receiving device was developed and constructed separately. However, the construction of the pressure receiving device causes the complicated structure of the heating system and the economic burden of the construction of the pressure receiving device. In addition, it is not easy to block leaks due to aggravated consumer's dissatisfaction due to the weighted and real leaks in construction sites.

On the other hand, the Republic of Korea Patent No. 10-0961388 (2010. 05. 26.) in the floor heating device, both ends of the heating pipe is finished by the closed closing device (140a, 140b), the inside is a quartz stone A heating tube (100) filled with a heat medium (110) mixed with 50% and vermiculite 50%; A U-turn heating cable 120 inserted into the heating tube 100 before the solid heating medium is filled, and configured by two wires to heat and conduct the heating medium 110 filled in the heating tube; A preliminary heating cable 130 having a U-turn type in one wire in preparation for disconnection of the heating cable 120; A temperature controller 200 for controlling a temperature of the U-turn heating cable 120 by a user at a remote location by comparing a set temperature with a current temperature; An inspection port box 300 for overall inspection of a floor heating device such as disconnection of the heating tube 100 and the U-turn heating cable 120; Floor heating apparatus has been proposed, including a temperature sensor for measuring the temperature of the heating tube in real time by attaching to the side of the heating tube 100 starting inside the checker box 300 (Fig. (A), (b) of 1).

However, the proposed technique attempts to maximize the heating efficiency by solving the problem of expansion and pressure generation of the conventional liquid heat medium by using the solid heat medium inside the heating tube, but the heating, conduction and heat dissipation efficiency of the solid heat medium is lower than that of the liquid heat medium. Due to this problem, heating efficiency does not meet expectations.

Therefore, the present invention is to provide an improved floor heating apparatus that can solve the problem of the heating efficiency of the floor heating apparatus using a solid heat medium and at the same time the problem of leakage due to the expansion and pressure generation of the liquid heat medium.

Therefore, the present invention has been made to solve the above problems, and more specifically, to improve the heating efficiency of the solidified fruit of the well-known floor heating device, single-walled carbon nanotubes and crystals and vermiculite is mixed with water to liquefy The heating medium is filled in the heating tube into which the heating cable is inserted, and a sealing connector is installed at both ends of the heating tube to provide a floor heating device to completely block the leakage of the heating medium in the heating tube.

"의 모양ㆍ형상의 양측 단면을 갖는 실리콘 재질의 제1 히팅케이블 지지부재(200) 및; 상기 난방관(100)의 내부에 충진된 열매체(50)의 밀봉을 위해 난방관의 양측 끝단부에 장착되며, 내부에는 "

"의 모양ㆍ형상의 일측 단면을 갖는 제2 히팅케이블 지지부재(300)가 장착되는 금속 재질로 제작되되, 난방관의 마감부(110)에 대한 밀봉 처리를 위해 난방관(100)에 장착되는 제1 커플러(410)와, 상기 제1 커플러와 체결되고 밀봉용 캡(430)이 장착된 제2 커플러(420)로 이루어진 밀봉용 커넥터(connecter, 400)를 포함하며, 또한, 상기 제1/제2 히팅케이블 지지부재(200, 300)를 통해 상기 난방관 및 밀봉용 커넥터의 내부에 인입되어 상기 열매체(50)를 가온, 전도하는 2선으로 구성된 히팅케이블(500)과 상기 히팅케이블의 단선에 대비하여 2선으로 구성된 예비 히팅케이블(600)과; 상기 히팅케이블(500)의 온도 설정과 바닥 난방장치의 주전원을 ON/OFF 제어하며, 바닥 난방장치의 누수, 온도, 단선을 점검하는 제어부(700)가 더 포함되는 것을 특징으로 하는 바닥 난방장치를 제공한다.According to a feature of the present invention for achieving the above object, in the floor heating device, which is installed buried in the floor that requires heating, there is a single-walled carbon nanotube (SWCNT) having thermal conductivity inside And a heating tube filled with a liquid thermal medium 50 having 10% by weight of single-wall carbon nanotubes, 5% quartz, 5% vermiculite, and 80% water by mixing crystals and vermiculite, which are natural ore materials, with water. 100); It is arranged at a predetermined interval inside the heating tube 100 to enable the heating cable and the preliminary heating cable to be introduced and supported, and to prevent the twisting between the heating cable and a plurality of heating cable insertion holes (hole, 210) and , A plurality of anti-rotation protrusions 220 formed in the heating tube to prevent rotation thereof is formed.

And a first heating cable support member made of silicon having both cross-sections and shapes of cross sections; and both ends of the heating tube for sealing the heat medium 50 filled in the heating tube 100. Inside, "

The second heating cable support member 300 having one side cross-section and shape is made of a metal material to be mounted, and is mounted to the heating tube 100 for sealing treatment to the finishing part 110 of the heating tube. And a sealing connector 400 comprising a first coupler 410 and a second coupler 420 fastened to the first coupler and equipped with a sealing cap 430. Disconnection between the heating cable 500 and the heating cable, which consist of two wires which are introduced into the heating tube and the sealing connector through the second heating cable support members 200 and 300 to heat and conduct the heating medium 50. A preliminary heating cable 600 composed of two wires in preparation for controlling the temperature of the heating cable 500 and the main power of the floor heating device, and controlling the leakage, temperature, and disconnection of the floor heating device. The floor heating apparatus further comprises a 700. The.

Preferably, the plurality of heating cable inlet holes 210 of the first heating cable support member 200 may flow through the heating medium 50 filled in the heating tube through the heating cable inlet hole. It is characterized in that the larger than the diameter of the heating cable 500 and the preliminary heating cable 600 to be made.

Preferably, the sealing connector 400, the first coupler 410 is mounted to any one of the heating pipe (100a) for the connection of a plurality of heating pipe (100a, 100b), one side is the first coupler The second coupler 420a is coupled to the coupler and mounted on the other heating tube 100b.

Preferably, the first coupler 410 of the sealing connector 400 is inserted into and supports the heating cable 500 and the preliminary heating cable 600, the mounting portion having the same size as the inner diameter of the first coupler ( 330 is formed, the second heating cable support member 300 is characterized in that it is mounted.

According to the floor heating apparatus of the present invention, there are the following effects.

Inside the heating tube where the heating cable is introduced, single-walled carbon nanotubes, crystals and vermiculite are mixed with water to fill the liquefied heat medium, and both ends of the heating tube are equipped with sealing connectors.

(1) Conventional solid heat medium by using single-walled carbon nanotube (SWCNT) with excellent thermal conductivity and liquid heat medium mixed with vermiculite and water with natural ore material with excellent heating and insulation performance. The heating efficiency can be maximized by improving heating, conduction and heat dissipation efficiency problems.

(2) By arranging and mounting the first and second heating cable support members inside the heating tube and the sealing connector, it prevents the twisting of the heating cable and the preliminary heating cable and induces heat generation evenly on the entire inner surface of the heating tube. The heat transfer rate to the heat medium can be increased.

(3) Both ends of the heating tube are completely sealed through the sealing connector composed of the first and second couplers, thereby reducing the construction and maintenance costs by solving the leakage problem caused by the expansion and pressure generation of the liquid heat medium. have.

1 (a), (b) is a photograph showing a conventional floor heating apparatus
Figure 2 schematically shows the overall configuration of the floor heating apparatus according to a preferred embodiment of the present invention
Figure 3 (a), (b) is a view showing a coupling relationship between the heating tube and the sealing connector and the first / second heating cable support member according to a preferred embodiment of the present invention
Figure 4 (a), (b), (c), (d) is a view showing a three-dimensional view and a cross-sectional view of the first / second heating cable support member according to a preferred embodiment of the present invention
5 shows a first / second coupler of a sealing connector according to a preferred embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, like reference numerals refer to like elements throughout. Although the same reference numerals are used in the different drawings, the same reference numerals are used throughout the drawings. The prior art should be interpreted by itself. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

 2 to 5, the main technical components of the floor heating apparatus according to a preferred embodiment of the present invention, the heating tube 100, the first / second heating cable support members (200, 300), for sealing The connector 400, the heating cable 500 and the preliminary heating cable 600, the control unit 700.

First, referring to Figures 2 and 3, the heating pipe 100 is a pipe (pipe) is installed on the floor is required to be heated, the conventional boiler pipe XL pipe is used to balance the entire floor surface It is arranged to be suitable for heating.

Here, the heating medium is filled with a heating medium 50. The heating medium is a liquid heat medium in which single-walled carbon nanotubes (SWCNT), crystals, and vermiculite are mixed with water.

Single-walled carbon nanotubes (SWCNTs) among the constituents of the heat medium are carbon elements in which a honeycomb pattern is formed in a hexagonal ring shape. It is one of the basic structures of carbon nanotubes (CNT, carbon nanotubes) called nanotubes, which are extremely small, such as nanometers (nm), and have excellent electrical conductivity and strength. The thermal conductivity is the same as the most excellent diamond in nature, the thermal conductivity is very excellent material.

Further, among the constituents of the heat medium, quartz and vermiculite are processed by fine powder of a solid material calcined with natural ore material. It is possible to use, and its specific gravity is light, so it is mainly used as a heat insulating material and light weight aggregate. It is excellent in heat resistance, flame retardancy, and sound absorption. Vermiculite, also called vermiculite, is a material that calcined mica ore. It is a porous structure with light specific gravity and no change in physical properties up to 1,400 ° C. It has excellent fire resistance, sound absorption, dew condensation, insulation, etc. It is already recognized as a material for industrial insulation.

However, the crystal and vermiculite are excellent materials for heating and heat insulators, but the solid crystal and vermiculite mixtures are introduced into the heating tube of the floor heater, as described in the well-known technology for floor heating. When used as a heat medium in the solid state, the heating, conduction, and heat dissipation efficiency of the heat medium were lower than those of the liquid heat medium.

Accordingly, the applicant of the present invention, as described above, in order to be able to exert the performance as a heat medium in the heating tube in the state of maintaining the advantages of the excellent modification and vermiculite as a heating material and heat insulating material as described above, the heat conductivity in the water which is a commonly used liquid heat medium The excellent single-walled carbon nanotubes, crystals and vermiculite were mixed at a certain ratio to form a liquidized heat medium. The heating efficiency was improved.

At this time, the weight percent of the constituent material of the heat medium was single-walled carbon nanotube 10%, quartz 5%, vermiculite 5%, water 80% by mixing the single-wall carbon nanotubes, quartz and vermiculite in water to be a liquid medium.

Here, the single-walled carbon nanotubes are carbon allotropes having no polarity, and are hydrophobic (Hydrophobic Property, property of being pushed out) when they meet polar water, and are not easily dissolved in water, but have a size of several nanometers (nanometer, When only a small amount is mixed with water, it is difficult to generate precipitates. Therefore, a mixture of single-walled carbon nanotubes and water having excellent thermal conductivity can be used as a heat medium, and when a mixture of single-walled carbon nanotubes and water is used as a heat medium, The heating efficiency can be maximized by conducting and doubling the heat generated from the heating cable in the heating tube.

In addition, since the natural ore material crystal and vermiculite can be processed into a fine powder (powder), a small amount of crystal and vermiculite fine powder and water can also be mixed with the single-wall carbon nanotube and water.

By using single-walled carbon nanotubes (SWCNT) with excellent thermal conductivity as well as liquid heat medium mixed with quartz and vermiculite with excellent heating and thermal insulation performance, the heating, conduction, Improve heat dissipation efficiency problems to maximize heating efficiency.

"의 모양ㆍ형상의 양측 단면을 갖으며 내열성이 우수한 실리콘 재질로 제작된다.2 to 4, the first heating cable support member 200 is disposed at regular intervals in the heating tube 100 so that the heating cable 500 and the preliminary heating cable 600 are drawn in. As a means for supporting, a plurality of anti-rotation protrusions 220 fixed to the inside of the heating cable 100 and the plurality of heating cable inlet holes 210 to prevent twisting between the heating cables so as not to rotate. ) Formed "

It is made of silicon material which has both sides of cross section and shape of "and excellent in heat resistance.

Here, the plurality of heating cable inlet holes 210 of the first heating cable support member 200 may allow the heating medium 50 filled in the heating tube to penetrate and flow through the heating cable inlet hole. It is made larger than the diameter of the heating cable 500 and the preliminary heating cable 600, the flow of the heat medium through the concave space between the plurality of rotation preventing projections 220 formed in the first heating cable support member 200 Since a gap is formed between the inner wall of the heating tube and the heating cable support member, the heating medium may also flow therethrough.

In addition, the first heating cable support member 200 may be provided with a separate heating medium filling hole (not shown) for the flow of the heating medium 50.

Again, referring to FIGS. 2, 3 and 5, the sealing connector 400 is mounted at both ends of the heating tube for sealing the heat medium 50 filled in the heating tube 100. It is made of a metal material, which is used to seal the both ends of the heating tube to be closed or to connect a plurality of heating tubes to each other, consisting of the first / second coupler (410, 420) and the sealing cap 430, Inside the second heating cable support member 300 is mounted.

Here, the sealing connector 400, the first coupler 410 mounted to the heating tube 100 for the sealing process for the finishing portion 110 of the heating tube, and the first coupler is fastened to the sealing cap A second coupler 420 equipped with 430 (see FIG. 3A), or mounted to any one heating tube 100a for connection of the plurality of heating tubes 100a and 100b. The first coupler 410, and one side is fastened to the first coupler and the other side is made of two types to be made of a second coupler (420a) mounted on the other heating pipe (100b). B)).

In addition, the fastening of the first and second couplers may be fastened to each other through the male screw part 411 formed on the first coupler 410 and the female screw part 421 formed on the second coupler 420 and 420a. 1 The O-ring (not shown) made of silicon is placed on the male threaded portion of the coupler to prevent leakage of water from the joint of the first and second couplers.

In addition, the first coupler 410 or the second coupler 420a, which is mounted at the end of the heating tube, is formed with a guide hole 412 that is the same as the inner and outer diameter standards of the heating tube. It is inserted and fixed and mounted. At this time, an adhesive or a waterproofing agent is applied to the inside of the guide hole for sealing.

In addition, a hexagonal shape is formed at a predetermined portion of the outer surface of the first / second coupler 410, 420, 420a to be clamped or loosened by a tool such as a spanner.

In addition, the second coupler 410 of the sealing connector 400 is mounted with the second heating cable support member 300 to prevent twisting and retraction of the heating cable and the preliminary heating cable inside the sealing connector.

"의 모양ㆍ형상의 일측 단면을 갖는다.Here, the second heating cable support member 300 has the same shape and shape as the front end face of the first heating cable support member 200, but has a mounting portion 330 having the same size as the inner diameter of the first coupler on the rear surface. ) Is further formed so that it may be mounted in close contact with the first coupler.

Has one side cross section.

In addition, the heating cable of the second heating cable support member 300 which is mounted inside the sealing connector 400 of the portion where the heating cable and the preliminary heating cable are connected to the finishing portion of the heating tube, that is, the control unit 700 to be described later. The inlet hole 210 is formed to be smaller than or equal to the diameter of the heating cable so that the heat medium is not leaked to the outside of the sealing connector.

Accordingly, the first and second heating cable support members 200 and 300 are disposed and mounted in the heating tube and the sealing connector, respectively, so that the heating cable and the preliminary heating cable can be pulled into the heating tube and the sealing connector without being twisted. It is possible to increase the heat transfer speed to the heat medium (50) by inducing heat generation evenly on the inner front of the heating tube, and can be installed in the fastening portion between the first coupler and the second coupler of the sealing connector to prevent leakage of the heat medium. have.

Meanwhile, the sealing connector 400 is generally manufactured in a straight shape, but is not limited thereto, and may also be manufactured in an “L” shape and a “∪” shape so that the heating pipe is arranged without bending the heating pipe.

2 and 35, the heating cable 500 and the preliminary heating cable 600 is a conventional heating cable consisting of two wires to heat and conduct the heating medium by conduction heat by electric energy, and the preliminary heating The cable is introduced into the heating tube 100 together with the heating cable in preparation for disconnection of the heating cable.

In addition, the covering material of the heating cable and the preliminary heating cable is made of plastic material, which enables safe design against electric leakage and electric shock accident, and it is a cable that can be used up to 200 ° C or above. It should be installed so as not to exceed ℃.

In addition, the heating cable and the preliminary heating cable is to be connected to the control unit 700 to be described later.

On the other hand, the preliminary heating cable 600 is not limited to two wires according to the floor size and use of the place where the heating is required, the heating tube is not drawn or only one wire to be drawn.

In addition, when filling / retracting the heating medium 50, the heating cable 500, and the preliminary heating cable 600 in the inside of the heating tube, first the drawing of the heating cable and the preliminary heating cable is completed in the heating tube 100. After one of the two ends of the heating tube is filled with the heat medium in one of the open state to seal it with a sealing connector 400, if a plurality of heating tubes are used according to the floor size of the place where heating is required. Fill and pull in the heating medium, heating cable, and preliminary heating cable in sequence.

Again, referring to FIG. 2, the control unit 700 controls ON / OFF of the temperature setting of the heating cable and the main power of the floor heating apparatus, and checks the leakage, temperature, and disconnection of the floor heating apparatus. And user convenience means such as the display part of the set temperature and the set temperature operation button part (not shown), so that the user can easily grasp and operate the situation of the floor heating device. It is obvious that a leak detector is installed.

In addition, since the user convenience means and the sensing means of such a control unit is well known in the heating-related field, a detailed description thereof will be omitted.

As such, the floor heating apparatus according to the preferred embodiment of the present invention is water-modified and vermiculite of single-walled carbon nanotubes (SWCNT) having excellent thermal conductivity and natural ore material having excellent heating and thermal insulation performance. By using the liquid heat medium mixed in the heat treatment, the heating, conduction and heat dissipation efficiency problems of the conventional solid heat medium can be improved to maximize the heating efficiency, and the first / second heating cable support member inside the heating tube and the sealing connector can be maximized. By arranging and mounting the heating cable, it is possible to prevent twisting of the heating cable and the preliminary heating cable and to induce heat generation evenly on the entire inner surface of the heating tube, thereby increasing the heat transfer rate to the heat medium.

In addition, by completely sealing the both ends of the heating tube through the sealing connector consisting of the first / second coupler, it is possible to solve the problem of leakage due to the expansion and pressure generation of the liquid heat medium to reduce the construction cost and maintenance cost .

The above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains may make various modifications and variations without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention but to describe the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

50: heat medium 100, 100a, 100b: heating tube
110: finish of the heating tube
200, 300: 1st / 2nd heating cable support member
210: heating cable entry hole 220: rotation preventing projection
330: mounting portion
400: sealing connector 410: first coupler
411: male thread portion 412: guide hole
420, 420a: second coupler 421: female threaded portion
430: sealing cap 500: heating cable
600: spare heating cable 700: control unit

Claims (7)

Floor heating,
It is installed on the floor that needs heating, but inside it is a single-walled carbon nanotube (SWCNT, Single-walled Carbon Nanotube) and natural ore crystal and vermiculite mixed with water. A heating tube 100 filled with a liquid medium 50 having a weight of 5% quartz crystal, 5% vermiculite and 80% water;
It is arranged at a predetermined interval inside the heating tube 100 to enable the heating cable and the preliminary heating cable to be introduced and supported, and to prevent the twisting between the heating cable and a plurality of heating cable insertion holes (hole, 210) and , A plurality of anti-rotation protrusions 220 formed in the heating tube to prevent rotation thereof is formed.

A first heating cable support member (200) made of silicon having both end surfaces of a shape and a shape of "
Mounted at both ends of the heating tube for sealing of the heat medium 50 filled in the heating tube 100, the inside "

The second heating cable support member 300 having one side cross-section and shape is made of a metal material to be mounted, and is mounted to the heating tube 100 for sealing treatment to the finishing part 110 of the heating tube. A sealing connector 400 comprising a first coupler 410 and a second coupler 420 fastened to the first coupler and equipped with a sealing cap 430,
In addition, the heating cable 500 is composed of two wires introduced into the heating tube and the sealing connector through the first and second heating cable support members 200 and 300 to heat and conduct the heat medium 50. And a preliminary heating cable 600 composed of two wires in preparation for disconnection of the heating cable;
Floor setting apparatus further comprises a control unit 700 for controlling the temperature setting of the heating cable 500 and the main power of the floor heating device ON / OFF, and checks the leakage, temperature, disconnection of the floor heating device.
delete The method according to claim 1,
The plurality of heating cable inlet holes 210 of the first heating cable support member 200 are heated so that the heating medium 50 filled in the heating tube can pass through the heating cable inlet hole and flow. Floor heating device characterized in that the larger than the diameter of the cable 500 and the preliminary heating cable (600).
delete The method according to claim 1,
The sealing connector 400, the first coupler 410 is mounted to any one of the heating pipe (100a) for the connection of a plurality of heating pipe (100a, 100b), and one side is fastened with the first coupler The other side is a floor heating device, characterized in that consisting of a second coupler (420a) mounted on the other heating tube (100b).
6. The method of claim 5,
The first coupler 410 of the sealing connector 400 receives and supports the heating cable 500 and the preliminary heating cable 600 and has a mounting portion 330 having the same size as the inner diameter of the first coupler. Floor heating apparatus characterized in that the second heating cable support member 300 is mounted. delete

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