RU2261400C1 - Economical delicate multi-functional heating fire-place - Google Patents

Abstract

FIELD: heating appliances; heating dwellings and cottages.

SUBSTANCE: proposed heating fire-place works on solid fuel. Heating fire-lace is combined with stove forming single body; it is provided with fire box with stove door, circulating hollow flue duct and chimney. Fire box inlet is just wind box and its outlet is connected with inlet of circulating flue duct whose outlet is connected via flue gate with lower part of chimney. Solid fuel cassette of long-term burning is placed in body in such way that hollow convective chamber is formed between walls of cassette and body; body is additionally provided with hollow convective passage isolated from flue duct by material of body. Convective passage inlet is connected with outlet of convective chamber and its outlet is connected with space being heated.

EFFECT: enhanced efficiency.

5 cl, 5 dwg

Description

The proposal relates to heating systems-fireplaces and stoves that run on solid fuel, and provides additional consumer properties of these systems.

Heating furnaces are known for heating rooms in urban homes and in rural homes.

One of such heating systems includes, in particular, a heating furnace, the main functional elements of which consist of a firebox with a combustion door, a reverse hollow chimney and a chimney. The heating of the room occurs due to the accumulation of heat in the array-body of the furnace and the subsequent heat transfer from the array-body of the heating furnace.

Fireplace cartridges are also known, which are the basic elements of fireplaces intended for heating rooms in urban-type houses and in rural houses, as well as in cottages.

These fireplace cartridges provide long-term (more than 10 hours) continuous burning of solid fuel (firewood) due to their inherent design features. Coefficient of performance (COP) reaches for fireplace cartridges 75%.

In fireplaces in which fireplace cartridges are installed, convection heat is used - streams of warm air coming from the convection chamber of the fireplace.

Open fireplaces are also known in which the room is heated by the heat coming from the firebox, however, the efficiency of an open fireplace is many times lower than that of fireplace cartridges.

In addition, combined designs of heating systems are known when a heating stove and an open fireplace are combined in one construct. Such a construction is described in the "Dictionary of terms, concepts and definitions found in the literature on the topic: household stoves and fireplaces", compiled by S. Mirkis. Publishing house "Peter" St. Petersburg, 2002 and is posted on the Internet.

In this case, the heating fireplace is a stove equipped with rather large entrance doors and having, as a rule, the upper and lower connection (in the connecting unit) with the chimney.

With the open position of the upper connecting unit and the entrance doors, the fireplace practically does not heat the room (due to the low efficiency) and serves mainly as an interior decoration and a source of local heat (near the firebox with open doors).

With the front doors closed, the heating system turns into a conventional heating stove.

Another heating fireplace is known, which, like the previous heating fireplace, turns into a heating furnace with the door closed and into the fireplace when the upper connecting unit and the door are open. This heating fireplace is described in A. Korobeinik's book "Stoves and Fireplaces". Publishing house "Phoenix". Rostov-on-Don. 2001 and we have chosen as a prototype.

The heating fireplace, selected as a prototype, is a fireplace combined with a heating furnace and forms a single massif body. This mass-case contains a firebox with a combustion door, a revolving hollow smoke channel of a heating furnace, and a chimney.

Speaking of the channel hollow, we mean that it is formed by selecting the material of the mass-case from the total mass of the mass-body (or, of course, by leaving the corresponding voids-cavities when laying the furnace). Speaking of "hollowness", we emphasize that during the formation of the channel no other materials, except for the material of the massif-case, were used. In particular, metal pipes or pipes made of other material were not used.

The interpreted concept of hollowness refers to both the smoke channel and the convection channel.

The pneumatic channel can be made in any way: either similarly to the smoke and convection channels, or using additional pipes, hoses or other air ducts.

In the heating fireplace, in its array-body, the inlet of the firebox is a blower (a place where air enters from the heated room). The output of the firebox is connected to the input of the reverse smoke channel. The outlet of the return smoke channel through the smoke damper is connected to the lower part of the chimney.

The main disadvantage of the heating system, selected as a prototype, is that:

- the heating fireplace in the open fireplace mode has a low coefficient of performance (COP) and does not accumulate heat in the material of the massif body. All the heat goes into the chimney and heats, essentially, the street;

- the heating fireplace in the heating furnace mode accumulates heat in the material of the massif-case, however, during its heating the room is poorly heated, because convection heat comes only from the heated closed door of the heating fireplace insert.

In addition, the disadvantage of the known heating fireplace is the impossibility of regulating the heating of the heated room during its heating (heat regulation by adding firewood is not considered here).

The adjustment of the heating process of the heated room is quite well solved in another known heating device - electric convectors, which can maintain the user-set temperature of the heated room due to their automatic on / off control under the control of the temperature sensor of the heated room.

Another disadvantage of the heating fireplace selected by the prototype is the relatively slow heating of the smoke channel during the heating of a cold heating system, which leads to smoke emissions into the room and can delay the heating process for a sufficiently long time. Obviously, for a better kindling of the heating furnace, it is desirable to have a heated heating system and dry firewood (in the framework of this application, we will focus on providing faster heating of the proposed heating system, as compared to known heating systems, see below).

When choosing a prototype, we preferred a heating multifunctional system (both a fireplace and a stove), and the well-known fireplaces with convection heat were mentioned only as an analogue, considering that for the proposed technical solution the popularity of heating systems with combined functions is more significant.

The purpose of the claimed heating system is to eliminate the above disadvantages of known heating systems. The proposed heating fireplace allows you to:

- increase the efficiency of the heating fireplace in the "fireplace" mode (ie increase the efficiency of the fireplace) and maintain the efficiency of the heating fireplace in the "heating furnace" mode;

- to provide the ability to control the heating of the room (by redistributing the heat going to convective heating of the room and the heat going to heat the array-body):

- provide the ability to automatically control the heating of the room (mode of maintaining the set temperature);

- to provide accelerated heating of the chimney ducts of the heating system to minimize the possibility of smoke emission into the room during the kindling of a cold heating system. The inventive heating fireplace, as well as the well-known, selected as a prototype heating fireplace, combines a fireplace and a heating furnace in a single design (in an array-body).

The inventive heating fireplace is a fireplace combined with a heating furnace and forming a single massif body comprising (like a prototype) a firebox with a combustion door, a reverse hollow smoke channel of the heating furnace and a chimney, while the firebox entrance is blown up, and its output is connected to the entrance of the reverse smoke channel, the output of which through the smoke damper is connected to the lower part of the chimney.

These goals were achieved thanks to the combined implementation of the following:

- as a firebox in the array-case of the heating system a highly efficient (efficiency up to 75%) fireplace cassette of long burning of solid fuel (wood) is installed;

- this fireplace cassette is installed so that between the walls of the fireplace cassette and the array-body a hollow convection (thermal) chamber is formed;

- in the fireplace case, an additional hollow convection channel is made, isolated by the material of the array body from the smoke channel. Laying the route of the hollow convection channel, isolated by the body material from the hollow smoke channel, in the immediate vicinity of the smoke channel provides the possibility of additional heating: the smoke channel is simultaneously heated from the inside in the traditional way - with hot air and smoke from the fireplace cassette and from the outside - through the material of the array - case, isolating the convection channel from the smoke channel, while passing the heated convection air flow through the convection channel.

The surface of the hollow convection channel adjacent to the smoke channel is made in a special way. She (this surface) is made so that its area exceeds the minimum possible. If the cross section of the convection channel is rectangular, then the minimum area is determined by the product of the height of the convection channel and its base — depth or width (in accordance with the drawing below in FIG. 1 — by depth). In contact with the surface of a larger area of convection air flow there is an increased heat transfer to the walls of the convection channel. This contributes to a more intense heating of the inner surface of the convection channel and, thus, contributes to a more intense heating of the smoke channel, the heat of which is transmitted through the material of the array body.

- the entrance of the convection channel is connected to the output of the convection chamber, and the output of the convection channel to the heated room;

- a convection valve is installed in the convection channel - a blocker of convection air flow;

- in the array-case, an additional hollow pneumatic channel is made, and a convection valve is formed at the point of connection of the pneumatic channel to the convection channel. In this case, the convection valve is made in the form of a pneumatic relay. Known pneumatic relays can be divided into two main groups depending on their technical implementation. The first group includes pneumatic relays based on elements with moving parts. The second group includes pneumatic relays without moving parts, which use the interaction of currents (interaction of air flows). In the proposed heating fireplace, it is proposed to use the second group of pneumatic relays.

- the output of the electric air blower of the heated room is connected to the inlet of the pneumatic channel, and the air blower inlet is connected by an electric circuit to the starting element (a conventional electric fan or an electric pump can be used as an air blower);

- the temperature sensor of the heated room is attached to the heating fireplace, which is installed either on the outside of the array housing or in the heated room. In this case, the output node of this temperature sensor is made in the form of a starting element of an air blower. As a temperature sensor, a sensor similar to that of electric convectors can be used (see, for example, the Atlantic type convector, France)

It should be noted that in electric heating systems (convectors), the temperature of a heated room is controlled by closing / opening an electric current circuit through a heating element using a temperature sensor. In this case, the power of the mains is consumed optimally.

A direct analogy in solid fuel heating systems would be the burning / extinguishing of firewood in a fireplace, but this solution does not hold water. Naturally, no one is going to extinguish firewood in the proposed heating fireplace, and the heat of the heated room is controlled by redistributing the heat generated by burning wood.

As mentioned above, the heat of firewood can:

- accumulate in the storage element - in the material of the array-body of the heating furnace,

- proceed from the convection channel into a heated room for direct heating.

The proposed temperature control of the heated room is based on the fact that the heat of convection channels is used either for its intended purpose (it is taken out to the heated room) or used to additionally heat the material of the massif body (it is accumulated, i.e. it has delayed use of firewood generated by burning heat). In this sense, it is quite acceptable to talk about the delicate heating of a heated room by the proposed heating fireplace (by analogy with the term “delicate washing” in washing machines).

Our patent search did not reveal any known solid fuel heating systems that would ensure the achievement of the indicated consumer properties in the form in which this is implemented in our technical solution.

So, the proposed heating fireplace has the following set of basic elements and the connections between them, which could be described as follows:

A heating fireplace is a fireplace combined with a heating furnace and forming a single massif body containing a firebox with a combustion door, a reverse hollow smoke channel of the heating furnace and a chimney, while the firebox entrance is blown up, and its output is connected to the entrance of the reverse smoke channel, output which through the smoke damper is connected to the bottom of the chimney. A chimney cassette for long-term burning of solid fuel (wood, charcoal or coal) is installed in the firebox casing so that a hollow convection chamber is formed between the walls of the chimney cassette and the casing array, and a hollow convection channel is isolated in the casing array, isolated by the array material -casing from the smoke channel, the entrance of the convection channel is connected to the exit of the convection chamber, and its output - to the heated room.

The hollow convection channel is made so that the area adjacent to the smoke channel - the surface of the convection channel exceeds the minimum possible - determined by the product of the height of the convection channel and its base - depth or width.

If the section of the convection channel is rectangular, then the minimum surface area of the convection channel adjacent to the smoke channel is determined by the product of the height of the convection channel and its base — depth or width (in our case, depth, since the convection channel is located next to the smoke channel). If the convection channel was located behind the smoke channel, then - to the width.

If the convection channel is not linear, then the area of its internal surface is determined by the sum of the areas of the elements forming this channel.

An increase in the area of the inner surface of the convection channel adjacent to the smoke channel can be achieved, for example, by increasing the friction coefficient of this surface (by creating roughness of this surface by, for example, splitting a brick and laying it with the chipped side inward) or by complicating its configuration (ribbed surface). In addition, the surface in question can be made of brick, in which grooves are cut through on one side (for example, using a cutting machine - “Grinder”) so that this surface forms a radiator.

Moreover, the greater the temperature difference between the internal walls of the convection channel and the convection air flow, the more intensively the heat is removed by the internal surfaces of the convection channel from the convection stream, and first of all by the surface adjacent to the smoke channel.

If the indicated temperatures are equal, the heat removal from the convection flow ceases, and all convection heat is used to heat the heated room.

And here again we can talk about the delicate heating of a heated room.

In addition, a convection valve is installed in the convection channel - a blocker of convection air flow.

For the further development of this proposal, a pneumatic channel is additionally made in the body-casing, and a convection valve is formed at the point of connection of the output of the pneumatic channel to the convection channel in the form of a pneumatic relay. In this case, the output of the electric air blower (for example, a fan or pump) of the heated room is connected to the input of the pneumatic channel, and the on / off input of the air blower is connected by an electric circuit to the starting element of this air blower.

The heating fireplace is given a temperature sensor of a heated room, which is installed either on the outside of the array housing or in a heated room, while the output node of the temperature sensor is made in the form of a starting element of an air blower.

Figure 1 shows a diagram of the structural design of the heating fireplace in accordance with the main idea of claim 1 of the formula.

Figure 2 shows one of the possible embodiments of the design of the inner surface of the convection channel, which provides increased resistance to convection air flow and contributes to more intense heating of the inner surface of the convection channel during the kindling of a heating fireplace.

Figure 3 shows a diagram of the structural design of the heating fireplace in accordance with the main idea of claim 3 of the formula.

Figure 4 shows a diagram of the structural design of the heating fireplace in accordance with the main idea of claim 4 of the formula.

Figure 5 shows a diagram of the structural design of the heating fireplace in accordance with the main idea of claim 5 of the formula.

Figure 1 shows a two-story building 1, in which the proposed heating fireplace 2 is installed, forming a single massif-body 3, combining a fireplace and a heating stove.

Array-housing 3 contains a firebox 4 with a combustion door 5, a reverse hollow smoke channel 6 and a chimney 7.

Firebox 4 has an input 8 for supplying cold air to the heating system, which is usually called "blowing".

The exit 9 of the smoke channel 6 through the smoke valve 10 is connected to the lower part 11 of the chimney 7. The smoke valve 30 in figure 1 is shown in dotted form. The direction of movement of the smoke damper is perpendicular to the plane of the drawing.

In the array casing 3, as a firebox 4, a fireplace cassette 12 for long-term burning of solid fuel is installed so that between the walls 13 of the fireplace cassette 12 and the array casing 3 a hollow convection chamber 14 is formed.

In the array-case 3, an additional hollow convection (thermal) channel 15 is made, isolated by the material of the array-case 3 from the smoke channel 6. In Fig. 1, a fragment of such an insulating element is element 16.

The input 17 of the convection channel 15 is connected to the output 18 of the convection chamber 14. The output 19 of the convection channel 15 is connected to the heated room of the building 1.

The inlet 20 of the convection chamber 14 is connected to the lower part of the heated room (for supplying cold air to be heated).

Elements 21-22 in figure 1 are not shown, their numbers are reserved.

Figure 2 shows a detail of the structural design of one of the elements of the heating fireplace 2 - namely, detail of the implementation of the inner surface of the convection channel 15.

The ribbed inner surface 23 of the convection channel 15, when convection air flows through it, contributes to an increased heat transfer, which, in turn, contributes to faster heating of the body-body 3 of the heating fireplace and, in the first place, faster heating of the smoke return channel 6. On figure 2 shows two ribbed surfaces of the convection channel, one of which is adjacent to the smoke channel.

In figure 3. in addition to figure 1, shows a convection valve 24, which is a blocker of convection air flow.

Elements 25-27 in figure 3 are not shown, their numbers are reserved.

Figure 4 discloses the implementation of convection valves 24.

Figure 4 shows that in addition to figures 1, 3, an air duct 28 is additionally made in the body-casing 3. In this case, the convection valve 24 is formed at the point 29 for connecting the output of the pneumatic channel 28 to the convection channel 15.

An output 31 of an electric air blower 32 is connected to an input 30 of the pneumatic channel 28. The electric air blower 32 has an input 33, which is connected by an electric circuit 34 (two-wire) to the starting element 35 (which includes an output actuating element 36). The output 31 of the electric supercharger 32 of the air are the blades of an electric fan that implements the functions of the supercharger 32.

In figure 4, the elements 37-39 are not shown, their numbers are reserved.

Figure 5 shows that the heating fireplace 2 is attached to the temperature sensor 40, which can be installed on the outside of the array-body of the heating fireplace, and anywhere in the heated room. The temperature sensor 40 has an output unit 41, which is made in the form of a trigger element 35 (node / element 41 is similar to the node / element 35). The output node 41 has an actuating element 42 (made in the form of a contact).

Consider the work of the proposed heating fireplace, shown in figure 1.

For concreteness, we assume that the first floor of building 1 should be heated with heat, the accumulated material of the massif-building 3 of the heating fireplace, and the second floor of building 1 should be heated with convection heat of the heating fireplace 2.

Let us also pay attention to the fact that the smoke channel 6 and the convection channel 15 are formed in the array-body of the heating fireplace 2 in close proximity to each other and they are separated from each other by an insulating element 16, the thickness of which is small. When using a brick for a heating fireplace, it is advisable to separate the flue and convection channels into half a brick (i.e., the thickness of element 16 is equal to the thickness of half a brick).

So, let's say that you need to melt a cold heating fireplace 2.

After kindling firewood in the fireplace cassette 12 (firewood is put into the cassette through door 5, after which the door 5 is closed and the inlet 8 for supplying cold air is opened) hot air and smoke through the smoke channel 6 rises from the fireplace cassette 12 to the chimney 7, heating the inner surface of the smoke channel 6. At the same time, the walls 13 of the fireplace cassette are heated and the air in the hollow convection chamber 14 is heated. This air rises up the heating fireplace through the hollow convection channel 15, heating the walls of the smoke channel for 6 s Aruja. We emphasize that, as can be seen from the drawing in figures 1-5, the outer wall of the hollow smoke channel 6 is the inner wall of the hollow convection channel 15.

Simultaneous heating of the walls of the smoke channel 6 from two sides (both from the inside and from the outside) leads to faster heating of the smoke channel 6. This provides faster (compared with known heating systems, for example, with the prototype) achieving good draft in the smoke channel of the proposed heating fireplace, i.e. leads, at a minimum, to a significant reduction in the smoke from the heating fireplace 2 when it is kindled.

The implementation of the inner surface of the convection channel 15 with an enlarged, compared with the minimum possible, surface of the convection channel adjacent to the smoke channel (in our embodiment of Fig. 2 is generally ribbed - see element 23) leads to the following. When the heated convection air flow passes through the inner surface of the convection channel 15 due to the high friction of the air flow (which is caused by the increased surface) against the walls (surface) of the channel, the inner walls of the convection channel 15 are more intensely heated and, as a result, the walls are more intense (surface) of the smoke channel 6, and in general the array-body 3 of the heating fireplace 2.

When the material of the array body 3, from which the convection channels are composed, is heated to the temperature of the convection air flow, further heat removal from the convection flow ceases and all the heat goes to the heating of the heated room. The considered process of heat removal from convection air flow is adaptive (!).

The installation in the proposed heating fireplace as a firebox 4 (see prototype) of the fireplace cartridge 12 for long-term burning of fuel with high efficiency (up to 75%) ensures that these well-known useful consumer properties are achieved in a known manner - long-term burning of fuel and high efficiency (up to 75%) .

But in addition to the aforementioned known efficiency of the proposed heating fireplace 2 increases (in comparison with heating systems based on the well-known fireplace cartridges) by some additional value due to the fact that smoke and warm air (already having given their energy by 75%) in known heating systems based on the chimney cassettes, they enter directly into the chimney 7, and in the proposed heating fireplace 2 they additionally pass through the rotary smoke channels 6 and additionally heat the massif-body of the heating fireplace ( ed they still had all the same 25% of their unused energy).

Thus, the proposed heating fireplace 2 provides an increase in the efficiency of the heating system.

Recall that in a heating system selected as a prototype, a heating fireplace is used either as a fireplace (in summer) or as a heating furnace (in winter). In the proposed heating fireplace, both modes of the heating fireplace - the prototype - work simultaneously (recall, however, that there are no convection channels in the heating fireplace - the prototype at all).

One of the parameters - the efficiency - of the proposed heating system 2, we do not compare with the corresponding parameter of the prototype (a heating open fireplace, when there is no need to talk about efficiency), but with the corresponding parameter of heating systems based on fireplace cartridges, which were mentioned at the beginning of the description of this application as an analog. With this comparison, we want to emphasize that even with a much tougher comparison, which takes place when comparing with an analog device, the proposed heating system 2 has a definite advantage.

After when the smoke channel 6 is heated by the heat of burning wood, in the fireplace cassette 12 close the inlet 8 for supplying cold air. The usual mode of long burning of fuel for fireplace cartridges begins.

When burning wood in the fireplace cassette 12, warm air rises to the second floor of the structure through the convection channel 15 and through the exit 19 of the convection channel 15 enters the heated room on the second floor, providing its heating.

After the fuel burns out, you can add a new portion of firewood to the heating fireplace or close the smoke damper 10 and complete the heating process of the heating fireplace 2.

Consider the operation of the heating fireplace 2 in accordance with figure 3.

Figure 3, in addition to figure 1, shows a convection valve 24, which allows you to block the convection channel 15. This can be done when the temperature of the heated room (in our example, the room on the second floor of the building) has reached the desired value (value).

When closing the convection valve 24, warm air from the convection channel will cease to flow into the heated room and heat it.

At the same time, burning of firewood and heating of air in the convection chamber continue in the chimney cassette 14. The heat of the heated air in this case will be used to additionally heat the body of the heating fireplace 2. Instead of directly heating the room on the second floor of the structure, convection heat will begin to accumulate in the walls of the convection channel 15 and further in the material of the massif-building 3, so that it can then be used when cooling the room (in our example, the premises of the first floor of the building).

The basic heating of the array housing 3 during the passage of a hot stream of air and smoke through the smoke channels 6 is obvious and does not require further explanation.

Consider the operation of the heating fireplace 2 in accordance with figure 4.

The convection valve 24 shown in FIG. 4 is fixed using a pneumatic relay (which is formed at point 29 — at the very point at which the convection valve 24 shown in FIG. 3 was installed). For the formation of a pneumatic relay without movable elements in the array-body 3 of the fireplace 2 is formed of a pneumatic channel 28, the output of which is connected at point 29 to the convection channel 15.

To the input 30 of the pneumatic channel 28 is connected the output 31 of the supercharger (in the simplest case, an ordinary 220 V fan). When air is pumped (by fan blades) from the first floor room into the channel 28 (through the inlet 30 of the channel 28), this air enters the point 29 of the connection of the pneumatic channel 28 and the convection channel 15.

The parameters of the air flow in the pneumatic channel 28 can be changed by changing the rotation parameters of the fan blades (air blower 32).

If one of the parameters means speed, then this speed should exceed the speed of air flow in the convection channel 15. In this case, the convection air flow from channel 15 cannot pass above point 29 (the pneumatic relay blocked its path).

A pneumatic relay (fixed) formed at point 29 has two inputs (one of them is the output of the pneumatic channel 28, and the other is formed by the convection channel 15 at point 29), and one output is a continuation of the convection channel above (according to the drawing) point 29 The air flow at the output of the pneumatic relay is determined by the ratio of the parameters of the air flow at its inputs.

Consider the operation of the heating fireplace 2 in accordance with figure 5.

In contrast to Figs. 1-4, Fig. 5 shows a temperature sensor 40 of a heated room. This sensor can be installed both on the outer surface of the fireplace 2 and anywhere in the heated room (in this case, the temperature sensor is installed in the heated room on the second floor).

If the temperature in the heated room is higher than the temperature set in the sensor 40, then terminal 42 is closed and the fan 32 (more precisely, the air blower) is turned on. Air from the pneumatic channel 28 enters point 29 and blocks the supply of warm air to point 19 of the convection channel 15. Heating of the heated room on the second floor is stopped. At the same time, in the fireplace cassette 12 the firewood continues to burn, the air in the convection chamber 14 continues to heat up and the warm air supplied to the convection channel 15 (in which the pneumatic relay has blocked it) intensively begins to heat the walls of the convection channel 15 and thereby heat the array body heating fireplace 2. There is a process of accumulation of heat given off by burning wood.

As soon as the temperature of the room heated on the second floor drops, the temperature sensor 40 acts on contact 42, contact 42 opens, fan 32 stops rotating, air supply to pneumatic channel 28 stops, pneumatic relay (made without movable elements!) At point 29 will cease to block convection the channel and warm air will again begin to be supplied to the heated room on the second floor. The described process will continue until the wood in the fireplace cassette 12 burns out and the chimney shutter 10 is closed.

It should be noted that the described process ensures the switching of the operating mode of the heating fireplace 2 from the mode of heating the room with convection heat to the mode of heat storage in the material of which the heating fireplace is made (for example, in brick), as well as the reverse switching of the operating mode of the heating fireplace without using any whatever the movable structural elements.

In its effectiveness, this mode is equivalent to turning on / off electric convectors, which were mentioned above. This is the indisputable advantage of the proposed heating fireplace.

In conclusion, it should be noted that in the proposed heating fireplace long-burning fireplace cartridges can be used with both high efficiency (75%), the cost of which is maximum, and with lower efficiency, the cost of which is significantly less. The presence of reverse smoke channels through which, in accordance with this proposal, heat that is not used in the fireplace cassette is passed allows to increase the efficiency of the heating system as a whole, i.e. create a modern Economic Delicate Multifunctional heating system.

Claims (5)

1. Heating fireplace - a fireplace combined with a heating furnace and forming a single massif body comprising a firebox with a combustion door, a reverse hollow smoke channel of the heating furnace and a chimney, while the firebox entrance is blown up, and its output is connected to the entrance of the reverse smoke channel the output of which through the smoke damper is connected to the lower part of the chimney, characterized in that in the massif-casing as a firebox there is a fireplace cassette for continuous burning of solid fuel so that between the walls of the fireplace cassette-housing and an array of hollow convection chamber is formed, and the array-configured body further hollow convection channel insulated housing array pictures from flue, the convection channel input connected to an output of the convection chamber, and its output - a heated room. 2. The heating fireplace according to claim 1, characterized in that the hollow convection channel is made so that the surface area of the convection channel adjacent to the smoke channel exceeds the minimum possible, determined by the product of the height of the convection channel and its base — depth or width. 3. The heating fireplace according to claim 1 or 2, characterized in that a convection valve is installed in the convection channel — a blocker of convection air flow. 4. The heating fireplace according to claim 3, characterized in that the pneumatic channel is additionally made in the body-casing, a convection valve is formed at the point of connection of the output of the pneumatic channel to the convection channel in the form of a pneumatic relay, while the output of the electric air blower is connected to the input of the pneumatic channel a heated room, and the on / off input of the air blower is connected by an electric circuit to the starting element. 5. The heating fireplace according to claim 4, characterized in that it is provided with a temperature sensor for the heated room, which is installed on the outside of the array housing or in the heated room, while the output node of the temperature sensor is made in the form of a starting element of an air blower.

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