Insulating glass element for window panes

The invention relates to an insulating element for the Building glazing with higher use of solar Radiant energy from a clear glass pane and a thereto with arranged distance, another glass pane arrangement.

In DE 41 25 834 C2 of the same applicant, such a described insulating glass element, the solar for the passage of Energy radiation, depending on the positioning of the radiation source having different transmission properties. This Insulating glass element can be, depending on the positioning of the Absorption plate to the radiation source towards the summer as Sunshade element with low radiation energy passage, In winter, the solar collector element with a high utilize solar radiation energy passage. This known Insulating element has a thermal insulation value of approximately k = 1.3 W / m²K and is in a windowsill 180 ° rotatable stored so that the insulating glass pane according to choice with one have or other of its surfaces to the outside of a room can. This allows the air conditioning costs of with such insulating glass panes equipped rooms both in Winter diminish and in summer.

The faces in the summer position outwardly with respect to the mainly in the non-visible region of the solar radiation selectively formed absorption pane of the insulating element absorbs the invisible portion of the solar Energy spectrum and converts it into heat energy by convection and is dissipated through radiation to the outside atmosphere. Of the entire Energiedurchlaßgrad is in this position, in which og k-value is only about g = 0.35.

In the winter position, the iron oxide-free or iron oxide reduced clear glass pane to the outside, and the selective Absorption pane turned towards the interior. The solar radiation penetrates the outward-facing white glass and applies without significant absorption losses on the selectively absorptive Glass. This glass pane converts about 50% of the solar Spectrum, mainly in the non-visible range, in longwave Thermal radiation to which then, hampered by the Space between the panes facing the emission of long-wave Thermal radiation-reducing coating (low-E coating) and an inert gas filling between the panes almost exclusively in the room interior is radiated.

The total energy in sunlight is in the Winter position almost g = 0.8 at the same k-value of

k = 1.3 W / m²K.

This concept, which can be called a solar diode and a mechanical reversal of the radiant flux of the insulating element includes, allowed for thermal utilization of the irradiated solar energy potential for relieving the heating balance in the Winter and transitional months and prevents excessive solar Radiation in the summer months.

Despite these known beneficial effects of Insulating glass element according to DE 41 25 834 C2 is only the Thermal barrier function, so the heat transfer coefficient of Insulating glass in the conventional construction technology in glass Gebäudehüllflächen given a priority attention and evaluation, while the total energy, ie solar Utilization function of transparent glass surfaces contrast is neglected.

The glass industry has for large architectural glazings, ie for quasi glass structures with respect to the thermal insulation function Insulating glass elements with excellent properties on the market brought, the k-values ​​of k = 1 W / m²K for Superagriseal Insulating elements and k values ​​of k = 0.7 and 0.5 W / m²K for have dreischeibige insulating glass elements.

Achieved are these values ​​through a single or two-sided Coatings that prevent the emission of long-wave radiation as well as additional inert gas filling between the panes rooms. Here, however, be substantial reductions of the g-value, ie, the Gesamtenergiedurchlaßwertes accepted. At a three-pane insulating glass are only values ​​of g = 0.48 and including achieved, which means that over 50% of the Outer pane incident sun rays are rejected, the for heating the interior space is therefore no longer available to stand.

Regardless of the energy losses due to neglected optimize the g-value in favor of a slightly improved k-value is determined by the glass industry for these insulating concept proved to be advantageous in that they both for winter heat insulation as well as for the was summer sunscreen suitable. Here is but overlooked that an improvement in the k-value by 0.3 and 0.5 W / m²K at a three-pane against a double disc glazing with a k value of k = 1 W / m²K, based on the achievable energetic gains, at least in the region of Central Europe Climates, is almost irrelevant when struck against the loss of insolation rate of 20 to 30% offsets. These Irradiation rate in the heating season of winter and Transitional months, even on a diffuse solar radiation an average of 100 to 150 W / m² and in direct sunlight 300 to 600 W / m²Which is compensatory advantageously can be used for space heating. Here, however, is to Note that the solar irradiation rate in the winter and Transitional months on the day subject to large fluctuations and can drop heavy cloud cover to very low values.

In connection with DE 41 25 834 C2 it is already known, that the thermal comfort decisively on the temperature of the wall surfaces of the room is affected. Even at more sufficiently room air temperature must the temperature of Wall surfaces of the room not below the room air drop, if the comfort is not to suffer. at Temperature variations partial space area ratios as they with glass windows in spite of given, optimal not allow thermal insulation values ​​avoid that comfort is already severely impaired. Balanced wall temperatures are also to avoid convective air currents a essential for a comfortable indoor climate. If this is given, room temperatures of 18 ° C than are already felt sufficiently comfortable so that the lowering of Room temperature is normally required Indoor temperatures of 22 ° C to 18 ° C a significant Heating cost savings of about 25% yields.

The invention is based on the problem, the thermal Comfort of interiors with large windows through Use of solar irradiation rate in the winter and Transitional months lasting and largely independent of the instantaneous weather to improve.

Based on this problem, in a Insulating element of the type mentioned proposed that it invention a non-visible mainly in the field of solar radiation spectrum absorptive glass pane arrangement with having high heat storage capacity.

The invention is based on the consideration that it matters, Solutions for maximizing the benefits of thermal irradiated, solar energy potential to relieve the find heating balance in the winter and transitional months, the light passing through the insulating element and the absorptive glass pane arrangement in long-wave heat radiation transmitted solar energy directly in the disc member compressed and extended in time withheld or stored should be to not only short, but also longer continuing to balance solar irradiation deficits. By high heat storage capacity of the absorptive glass pane arrangement can be the temperature level of the room facing Glass long largely maintained constant, whereby an above inside the room air temperature level of the space facing glass sheet is achieved that not only the thermal comfort of the room increases, but by a Lowering the heat transfer coefficient of the insulating element to a large extent, the heat balance of the interior improved.

The inventive optimization of the thermal benefits of solar energy input can be easily and very advantageously by increasing the thickness of the absorptive reach glass pane arrangement, preferably at least about is twice the thickness of the clear glass pane. If the Clear glass pane has a thickness 3-5 mm, the can absorptive glass pane arrangement advantageously has a thickness of have from 6 to 12 mm. The corresponding increase of Volume of the absorptive glass pane arrangement with the same size of the radiating surface of the glass sheet is significant heat charging the absorptive reached glass pane arrangement, so that the fluctuations of the Sunlight with partially cloudy skies or temporary Temperature deficiencies on the wafer surface facing the room can be compensated.

With the formation of the absorptive invention Disk array with high heat storage capacity is in the Room incident and converted into heat solar Radiant energy in the absorptive glass pane arrangement withheld and here a result of increased mass on prolonged period compacted saved instead of directly incident on the extended wall surfaces of the interior, the for the absorptive uptake of long-wave thermal radiation in the Typically are not optimally equipped.

In this way, despite temporary fluctuations in the Irradiation intensity, a higher temperature level of the room facing wafer surface obtained which at already low diffuse daylight irradiation, even in northern orientation the window, temperature values ​​identifies which of those over Room temperature are.

The by increasing the mass of the absorptive plate Glass pane arrangement realized thermal storage and Buffer concept thus affects advantageously in Setting a conducive and comfortable room climate. The Storage and buffer inventive concept favored at but daylight and by the constant maintenance of a Temperature level of the room facing surfaces of the absorptive glass pane arrangement above room temperature inside an effect of reducing a direct impact on the Transmission losses, ie of the effective k-value Insulating element affects. Achieved namely Surface temperature of the absorptive facing the space Glass pane arrangement, the internal temperature of the room, so the sinks effective k-value to a value of k = 0. This results in a thermal barrier because the outward heat flow, characterized by the k value of the insulating element, namely k = 1.1 W / m²K, by the absorptive glass pane arrangement of the stored solar irradiation is compensated.

Exceeds the temperature of the absorptive glass pane arrangement the air temperature inside the space, so there is the disc of the absorbed and stored solar radiation energy as Thermal radiation of the heating of the interior of the room directly benefit.

In unclouded sunlight also in winter Surface temperature of the absorptive glass pane arrangement to reached 45 ° C, that is, temperatures of the heat emission, the a mild radiant fireplace match.

The storage and buffer concept according to the invention leads to a previously untapped Proceeds benefit the irradiated Solar energy. According to the g-value of the insulating element consists of recovered for space heating Proceeds from solar-generated heat radiation or convective heat transfer of absorptive glass pane arrangement to the interior and by the insulating glass pane passing, immediate Direct irradiation of the visible region of the solar spectrum together. carries the short-wave radiation of the visible region predominantly absorptive in wall surfaces of the interior to which Warming. Only a small proportion of these short-wave Radiation can leave the room on the disk surface again. For long-wave thermal radiation, the inventive Insulating element impermeable.

The inventive by the storage and buffer concept Insulating element overall to reach solar yield benefits, as explained and illustrated above, in its full Extent clear if this benefit the services common insulating elements facing.

First, the gross amount of solar radiation is through Using a clear glass pane higher by 6-7%. Assuming a three-pane insulating glass element, it must be the Relexions- and absorption losses of the center disk and their take additional coating in buying before the radiation the inner pane meets. This marks already the clear reduced g-value of a conventional insulating glass element.

The significant loss of use of the solar radiation are mainly due to the limited absorption capacity of the for room facing float glass caused. Since this disc absorbing only 2-4% of the incident solar radiation can, can also only a fraction of the incident transmitted solar spectrum in long-wave heat radiation will. A high proportion of solar radiation, if they do not is absorbed by the surfaces of the interior, therefore, can then after multiple reflections back through the glass surfaces of the window unused emerge.

This is immediately understandable, because for outsiders Viewers of the space objects from the outside through the glass Windows cost.

If bright, reflective curtains or drapes are present, of the incident in this way up to 50% in the space Solar radiation through the glass envelope surfaces without thermal Benefits are radiated outwards again.

Due to the increased mass, and thus the Heat storage capacity of the absorptive glass pane arrangement in Connection with a clear glass pane gives a be zweischeibiges insulating glass element with a Heat transfer coefficient k = 1.1 W / m²K, so that even when by very low or diffuse irradiation or by temporarily covered Cloudiness given radiation deficits in total Daylight a substantially constant surface temperature the absorptive glass pane arrangement is reached, the at least equal to the air temperature of the interior is or it is, thus, the inventive insulating element almost constant having an effective k-value of k = 0th

To the best possible value in terms of permeability visible light, and the absorption in the non-visible range to reach the solar radiation spectrum, has the Clear glass pane advantageously has an extremely low Iron oxide content and the absorptive glass pane arrangement at least partially designed as a so-called green glass pane. In particular, the absorptive glass pane arrangement as massive be designed green glass pane, so as glass with a high iron oxide content.

According to another advantageous embodiment, the absorptive glass pane arrangement as at least two-layer Laminated glass with a PVB intermediate film between the glass layers be formed.

absorptive Using a designed as laminated glass, Glass pane arrangement is advantageous since a additional soundproofing effect is achieved. This Soundproofing effect can be further by using a Intermediate film having a greater thickness than usual, of for example, 1 mm and / or by specific improved film compositions. By the use of Laminated glass is further burglary safety Glazing means of the insulating element of the invention elevated.

In addition, it is possible, the degree of absorption and the remaining light transmittance and the storage capacity of designed as laminated glass, absorptive glass pane arrangement to expand by molecular in the transparent intermediate film Layers or pigmentations are introduced that to an sharper separation between the short-wave, visible and long-wave, non-visible range of the solar spectrum to lead. Also can thus absorption of the UV component of solar radiation with the benefit of an effective UV radiation protection for materials inside the room and an additional energy yield in the absorbent member of approximately 5% reach. In addition, there is also the Possibility the absorptive function of the glass pane arrangement alone or attributable in large part of the intermediate film.

For reasons of breakage, it is advantageous, at least a glass pane of the insulating element, preferably the absorptive glass pane arrangement, comprising at least a glass pane or glass layer of toughened or heat-strengthened glass to provided that largely against temperature differences is insensitive.

To a very high heat storage capacity of the absorptive reach glass pane arrangement, this may consist of two spaced sheets of glass and a sealed therebetween disposed, pervious to visible light fluid with high Heat storage capacity exist, the fluid, for example, may consist of water that an approximately five times higher having specific heat compared to glass. The Heat storage capacity of the liquid can be characterized by a high Proportion of dissolved metal salts to further increase, which is Metal salts such can be selected, that they of an absorption not visible region of the solar radiation spectrum contribute. The liquid may also consist of a homogeneously dispersed hydrogel of high viscosity made.

A contribution to the invention, thermal storage and Buffering the heat converted, solar radiation energy makes additional filling of the interspace between the Clear glass pane and the absorptive glass pane arrangement with a noble gas, preferably krypton, wherein the width of the should be the gap advantageously about 8 to 10 mm. When using a 5 mm-thick white glass plate, a 12 mm thick absorptive glass pane arrangement and a gap width of 10 mm results in a quite usual thickness of Insulating element of 25 mm. Insulating glass elements of this thickness and designing can be more readily in the windows in use of the type described in DE 41 25 834 C2.

In the case of krypton filling and a low-E coefficient of 0.03 already reached the insulating member has a k-value of k = 1 W / m²K.

To the diode effect of the insulating element of the invention support, may have at the the gas-filled Between room-facing surface of the absorptive Glass pane arrangement with the emission of long-wave Thermal radiation-reducing coating (low-E coating) be provided. The incident solar radiation penetrates the Clear glass pane approximately lossless and is incident on the the Interior facing absorptive glass pane arrangement. Both the passing through visible parts as well as the absorptive of the Glass pane arrangement absorbed and heat energy turned portions of the solar radiation spectrum come the Interior benefit as the outwardly facing pollution control Coating of the absorptive glass pane arrangement Prevents heat radiation to the outside.

In addition, the outwardly facing surface of the absorptive Glass pane arrangement also having an emission longwave Thermal radiation be provided reducing coating. These Arrangement is suitable, the storage capacity of the absorptive to increase glass pane arrangement. By the emission longwave thermal radiation-reducing coating is the towards significantly reduced heat radiation to the interior, which in the Disc is stored heat is to a higher raised temperature level and time at this level extended maintained.

With this coating, the emissivity is also the chamber-side disc surface of e = 0.8 to e = 0.1 reduced, whereby generally the heat transfer coefficient of Insulating element to a value of k = 0.8 W / m²lowered K becomes. This is advantageous both in the winter position and in the summer position, when the invention Insulating glass element in a window according to the DE 41 25 834 C2 is used.

The coating can be applied by means of cathode sputtering. In this case, the coating to the gas-filled intermediate space back to arrange, as these coating outside insufficient having long-term stability. Should an outside coating be made, this is the pyrolytic glass coating perform.

The storage concept of the invention can be advantageously Manner by combination with an electric resistance heater complement the absorptive glass pane arrangement.

Almost all low-E coatings, both by Cathode sputtering applied and the pyrolytically applied coatings, are electrically conductive. let to warm the surface resistance layers electrically and inasmuch as use-surface radiation heating systems.

It is also possible, as in the heating of Automotive rear wall glazing already known to the absorptive insulating glass panes conductor systems Screen printing process shall be printed. Alternatively, as in heatable composite windshields provided a barely visible line network of fine wires in the intermediate film of absorptive laminated glass structure are integrated.

The actual inventive concept lies in the idea of compensatory coupling of the electric heating of the absorptive glass pane arrangement with the irradiated and stored solar energy. This is done in such a manner that a integrated into the absorptive glass pane arrangement Temperature sensor, the electric heater always switches, when the temperature of the inner pane solarerwärmten not reached or the temperature level of internal air a higher value temporarily to a value below this Level drops.

In this way, the space-facing surface temperature of the absorptive glass pane arrangement constant over time with the respective inner temperature of the room compared with the result, that a constant effective k value of k = 0 over the entire Heating period is maintained constant.

Likewise by the local climatic benefits are already with a minimum expenditure of energy constant throughout the heating season protected, as the electric defogger always only Difference between the inner pane and the solarerwärmten compensated space internal temperature, which also then advantageously without sacrificing comfort at 18 to 20 ° C can be lowered.

Through a flexible, demand-driven temperature control of Windows-heating can, particularly in larger Window area proportion of Raumhüllflächen, the usual forego heating systems, the comparatively far higher cause operational and maintenance costs, regardless of the necessary investment costs.

Assuming a good insulation standards of other Spatial and Gebäudehüllflächen gives the solar radiation adsorbing and storing, highly insulated Insulating glass pane arrangement in compensatory coupling with the electrically powered and absorptive in the Glass pane arrangement integrated, flat heating system in of the type shown an excellent and very cost-effective approach for winter heating, and in Connection to the diode effect of a rotatable window system the summer air conditioning of a low-energy building.

The advantages of this concept are first in his Economy, the savings to energy, operating and maintenance costs, but particularly on the savings to investivem cost count.

Of importance is also given a conducive Radiation climate of the interior, the profits of living comfort and residential hygiene.

Ultimately earned the ecological aspect of this concept Attention since it is possible here, the sunlight in Central European widths for the air conditioning of buildings in optimally use.

The invention is described with reference to several in the drawing exemplary embodiments described. In the drawing show:

<b>Fig.</b> 1 a cross section through a window with a Insulating element of the invention according to a first embodiment,

<b>Fig.</b> 2 is a partial sectional view of a Insulating element of the invention according to a second embodiment,

<b>Fig.</b> 3 is a partial sectional view of a Insulating element of the invention according to a third embodiment, and

<b>Fig.</b> 4 is a partial sectional view of a Insulating element of the invention according to a fourth embodiment.

A window with an insulating glass element according to the invention is only schematically shown in cross section and has a building solid frame <b>1</b> conventional type on. In a corresponding section of the frame <b>1</b> is a casement <b>2</b> fitted on the frame and <b>1</b> about a pivot <b>5</b> in shape a conventional belt pivotally mounted. This casement<b>2</b> is located on the frame <b>1</b> dual to stop.

An insulating element consists of a clear glass pane <b>11</b> and one with Spaced therefrom, mainly in the non-visible range of the solar radiation spectrum absorptive green glass pane <b>4</b> is of an insulating glass element frame <b>3</b> includes. By means of the each center axis of the, not shown, in the vertical insulating element <b>4</b>. <b>11</b> arranged turning joint <b>6</b> let yourself the insulating element <b>4</b>. <b>11</b> with the insulating glass element frame <b>3</b> in the casement <b>2</b> after releasing a lock not shown turn through 180 ° and relock.

In the area of ​​a side surface of the insulating glass element frame <b>3</b> is on a peripheral projection of the frame <b>1</b> a circumferential poetry <b>7</b> arranged, to which the insulating glass element frame <b>3</b>. when the window is closed, and thereby applies the Sealing ensured. It can be seen that by this a poetry <b>7</b> a complete seal of the window sash is ensured without an additional seal between the Insulating glass element frame <b>3</b> and the sash <b>2</b> required is. Nevertheless, it may useful in certain applications be more seals <b>8th</b>. <b>26</b> between the Insulating glass element frame <b>3</b> and the sash frame <b>2</b> and or between the frame <b>1</b> and the sash frame <b>2</b> to arrange, without this, however, in most applications, necessary is.

The on the turn of joints <b>6</b> extending pivotal axis parallel outer surfaces <b>9</b> the insulating glass element frame <b>3</b> are with a radius rounded of to the turning axle distance equivalent. The respective inner surfaces<b>10</b> the casement <b>2</b> are also rounded so that the Insulating glass element frame <b>3</b> with little play in the casement <b>2</b> can fit. The insulating glass element frame<b>3</b> extends internally flush with the frame <b>1</b>So that individual with a strip <b>27</b> (Planking) of metal or plastic profiles both the frame <b>1</b> as well as the casement <b>2</b> can be covered. On this way can save repetitive coatings. At a Normal turning Casement one would have separated the for this purpose Frame and planking additionally the turning vanes, the latter both sides.

The green glass pane <b>4</b> has at least about twice the thickness of White glass <b>11</b> and is made of toughened or heat strengthened glass. Preferably, the thickness of the White glass <b>11</b> 3-5 mm, while the Green glass pane has a thickness between 6 and 12 mm has. Of the Distance of the clear glass pane <b>11</b> of the green glass pane <b>4</b> is preferably about 8 to 12 mm, and the thus formed, by means of conventional spacer sealed space <b>12</b> is a Inert gas, preferably krypton.

On the gap <b>12</b> facing surface of the Green glass pane <b>4</b> is the emission of long-wave Thermal radiation reducing coating <b>13</b> (Low-E coating) arranged.

In the <b>Fig.</b> 1 illustrated position of the insulating element <b>4</b>. <b>11</b> is the winter position in which the in the green glass pane <b>4</b>, the because of their thickness has a high heat storage capacity, Stored heat is radiated to the building toward the interior. This is the interior temperature and / or the comfort elevated. The coating<b>13</b> causes in the Green glass pane <b>4</b> stored heat substantially to Building interior is out radiated.

In the 180 ° rotated position, the summer in the Green glass pane <b>4</b> stored heat substantially outwards radiated or dissipated by convection, so that the heat output for Interior is down considerably reduced.

If you want to insulating elements with the highest possible use thermal storage, to reach glass thicknesses for the absorptive glass pane arrangement when solid glass no longer be produced inexpensively. Therefore, the embodiment of <b>Fig.</b> 2 of a two-layer laminated glass with a PVB interlayer film <b>16</b> between the glass layers <b>14</b>. <b>15</b>, Both the clear glass pane <b>11</b> and the glass layers <b>14</b>. <b>15</b> can have the same thickness of for example 5 mm, so that at a distance between the disks <b>11</b>. <b>14</b> of 9 mm and a Thickness of the PVB sheet of 1 mm thickness, an of Insulating element is achieved by 25 mm. The arrangement which the the emission of long-wave thermal radiation reducing coating <b>13</b> is the same as in the embodiment of <b>Fig.</b> 1.

By relatively thick PVB interlayer film <b>16</b>, the the exceeds usual level of about 0.75 mm, an additional Improve the sound insulation function of this insulating glass element reached.

The embodiment of <b>Fig.</b> 3 has a three-layered Laminated glass of the glass panes <b>14</b>. <b>15</b>. <b>17</b> and the PVB films <b>16</b>. <b>18</b> on. The total thickness of this arrangement is the same as in the embodiment of <b>Fig.</b> 2. In the between films <b>16</b>. <b>18</b> , molecular layers or Pigmentations as absorptive medium for the longer wavelength, the non-visible spectral range and / or the UV component of Sunlight be introduced. In this embodiment, a additional, the emission of long-wave thermal radiation reducing coating <b>19</b> on the surface facing outwardly of the absorptive glass pane arrangement <b>14</b>. <b>15</b>. <b>16</b>. <b>17</b>. <b>18</b> arranged. By the coatings <b>13</b>. <b>19</b> Namely, the radiation of the stored heat in both directions for Disabled, but causes This advantageously an increase in the temperature of the absorptive glass pane arrangement and a temporally extended Storage of the heat, but especially a considerable Reducing the k value of this glass pane arrangement.

In the embodiment of <b>Fig.</b> 4, the absorptive Glass pane arrangement of two spaced glass panes <b>14</b>. <b>15</b> and an example with a visible light permeable fluid <b>20</b> filled with high heat storage capacity Gap. If this fluid<b>20</b> taken water, can be the heat storage capacity with the same dimensions almost tripled since the specific heat of water over the Five times the amounts of glass. If the water certain dissolved metal salts, the heat capacity can be further and the increase in absorption of the liquid on certain Vote wavelength regions of the radiation spectrum.

The fluid <b>20</b> may also consist of a homogeneous dispersion hydrogel high viscosity are in place at high insulating elements Effects of the hydrostatic pressure to reduce.

Even if the absorptive glass pane arrangements in accordance <b>Fig.</b> 1 to 4 no emission of long-wave thermal radiation exhibit reducing coating, is the invention, advantageous aspect of the heat storage in the absorptive given glass pane arrangement, since the increased Heat storage capacity is maintained. In this case, works the insulating element of the invention, not as a solar diode viewed by pivoting 180 ° in a summer position and in can bring a winter position, however, is in this case a given simplified window formation without swivel option the over normal windows with insulating glass panes without Heat storage improved comfort even at short-term fluctuations in the solar radiation is ensured.

The electrically conductive coatings <b>13</b>. <b>19</b> can be as electrical resistance heating surface for the novel Insulating element use. Alternatively, electrical Resistor ladder screenprinted on the absorptive Glass pane arrangement <b>4</b>; <b>14</b>. <b>15</b>. <b>16</b>; <b>14</b>. <b>15</b>. <b>16</b>. <b>17</b>. <b>18</b> can be applied or electrical resistance heating (Not shown) in the intermediate film (s) <b>16</b>. <b>18</b>, As the Laminated glass formed absorptive glass pane arrangement <b>14</b>. <b>15</b>. <b>16</b>; <b>14</b>. <b>15</b>. <b>16</b>. <b>17</b>. <b>18</b> be incorporated.

A temperature sensor <b>21</b> on the absorptive glass pane arrangement <b>14</b>. <b>15</b>. <b>16</b>. <b>17</b>. <b>18</b> on the heating system <b>13</b>. <b>19</b> a when the Temperature of the absorptive glass pane arrangement on or falls below the internal room temperature, or does not reach it.