WO2020209819A1

WO2020209819A1 - Hot water generator that has the characteristics of natural gas combi-boilers and boilers

Info

Publication number: WO2020209819A1
Application number: PCT/TR2020/050368
Authority: WO
Inventors: Mahmut Han APAYDIN
Original assignee: Apaydin Mahmut Han
Priority date: 2019-04-10
Filing date: 2020-05-02
Publication date: 2020-10-15
Also published as: WO2020209819A4; TR201905406A2

Abstract

The invention relates to a hot water generator that has the characteristics of natural gas combi-boilers and boilers, which is developed for all indoor and outdoor areas, houses, villas, flats, workplaces and living areas, providing hot water use in all quantities and/or ambient heating by condensing and/or non-condensing.

Description

Hot Water Generator That Has the Characteristics of Natural Gas Combi- boilers and Boilers

Technical Field

The invention relates to a hot water generator that has the characteristics of natural gas combi-boilers and boilers, which developed for homes, villas, flats, workplaces, and living spaces, complies with the energy efficiency requirements in Europe, and provides the use of high amounts of clean hot water and ambient heating at the same time.

In particular, the invention relates to the hot water generator that has the characteristics of natural gas combi-boilers and boilers; which includes a premix burner that ensures the highly efficient combustion of fresh air and combustible gas mixture in combustion chamber, allows the fire to burn like in modulating systems, transmits its heat directly to the combustion chamber and the flue heat exchanger by combusting vertically, transmits the heat directly in the direction of the water and prevents the heating of the surfaces that do not contact the water since it does not burn horizontally; a honeycomb heat exchanger that is positioned inside the tank and heats the water used in the radiators, which provide ambient heating, by transferring heat with hot water, and prevents the heat energy from being wasted by not contacting with the air in the external environment and outside; a combustion chamber and flue heat exchanger that transmits heat to the water instead of being wasted during every cooling or closing by being inside the tank; and a tank that contains all the equipment inside, keeps the hot water ready for all time, meets the demand of domestic water and ambient heating water simultaneously when requested by the user, provides energy savings by ensuring the stable operation of the product by using it as an energy tank without increasing the instantaneous consumption in order to meet the instant need of hot water in high amounts and thus enables the instantaneous consumption being low and the flame chamber being housed in with a smaller size and less material used.

Prior Art

Combi-boilers are heating devices suitable for closed areas such as home or workplace, produced to meet the use of natural gas and hot water needs. These heating devices are mostly preferred since they have a small size and therefore do not take up a lot of space. Another important reason for preference is that the boiler is very quiet while working. In addition, its easy assembly is one of the important features. Today, although the improvements about the combi-boilers continue, there are still some shortcomings. In the prior art, in the combi-boilers and boilers, which serve as instant water heaters, water is wasted since the heat exchanger, which provides the water to heat up, can heat itself and the water after spending 4 to 10 litres of water when the hot water is requested. When the hot water request is over, the heat exchanger producing the hot water and the combustion chamber lose its heat by cooling with the air in the environment which they are located, and this causes waste of energy. This process is repeated whenever the faucet is turned on and off for each hot water request.

In the prior art, as the number of hot water users increases, combi-boilers cannot respond to this need. For example; while the first user at the bathroom faucet is using the hot water at the desired temperature, if the second user at the sink faucet requests hot water, the first user will have to make very sensitive adjustments to continue to use the water at the desired temperature. When the hot water request of the second user is over or a third user requests hot water, the first user at the bathroom has to adjust the hot water from the faucet again. Frequently, the user that requested hot water later continues to use it after the water gets warm, while the first user has to continue with the cold water. There is no such an obligation, however the first user has to adjust the water.

In the prior art, it is seen that additional comfort is provided to the hot water users by adding externally insulated boiler tanks beside the combi-boilers, which have an instantaneous water heating function to meet the instantaneously high amounts of hot water need. This causes extra costs. In addition, these tanks take up a lot of space.

In the prior art, loss of energy occurs since the pipes and heating equipment used for the transfer of hot water are placed as uncovered and scattered in the environment.

In the prior art, the heat exchanger that performs heat transfer bums in vain until it heats the water during the tum-on and off process (starting and ending the command of the combustion) and causes unnecessary energy consumption. Furthermore, the heated heat exchanger releases its heat to the environment after the faucet is turned off and causes a second waste.

In the prior art, in combi-boilers, which are instant water heaters, the gas consumed during the first heating and warming is wasted.

In the prior art, both hot water and radiator heating cannot be performed simultaneously with the same device.

In the prior art, since the natural gas boilers are designed only to meet hot water need, and not designed to heat the radiators; additional equipment and labour are required for this work. Standard success will never be achieved.

In the prior art, although the natural gas boilers are designed only to meet hot water need, and not designed to heat the radiators, the necessary mechanical additions are made to ensure this, but the ambient heating unit and the hot water production equipment cannot work integrated. For this, the system must work together from the inside. Before the water in the tank is heated, the pump operates with the demand from the radiator. Energy waste occurs. Since the radiator and closed loop pressure systems cannot be positioned afterwards, the consumer remains helpless if the water pressure drops. All the necessary materials cannot be added, the necessary safety equipment and sensors cannot be used at the same time. As a result, it can lead to unnecessary made-up investments that are costly to revert. In the prior art, condensing combi-boilers and natural gas boiler systems require an additional premix unit in combustion equipment in order to provide over 85% efficiency and the feature of condensing water heater. Additional equipment (control card and hardware) is used, requiring premix control and speed adjustment according to the standard fan and gas valve.

In the prior art, in combi-boilers that do not provide premix combustion and are called hermetic, the amount of gas is variable, and the amount of air is constant. There is a situation of not working at certain upper and lower limits. In addition, the amount of gas and air is automatically adjusted in condensing combi-boilers. For this, fan and gas valve with additional equipment, which are additional hardware and equipment requirements, are used. This also increases the hardware load on the card and enlarges the size of it.

As a conclusion, the need for a new economic, useful, smaller sized natural gas combi-boiler and hot water generator for the solution of the above mentioned problems existing in the prior art and the inadequacy of the existing solutions made it necessary to make an improvement in the relevant technical field.

Purpose of the Invention

The invention relates to a hot water generator that has the characteristics of natural gas combi-boilers and boilers, which is created with inspiration from the current problems and aims to solve the above mentioned disadvantages, working with natural gas and not requiring additional heat source, fully condensing, semi- condensing or non-condensing, compliant with European energy requirements, working at 85% efficiency and above, providing both domestic hot water and providing ambient heating.

The most important object of the invention is to store hot water in it and meet the hot water need instantly. Thus, the device is provided to respond to high amounts of hot water requests in a short time. For this reason, the user meets his needs with our 9-kW invented product in homes where he currently needs 24 kW at maximum. It becomes much more attractive due to both fuel, water and installation costs. It eliminates the need for boilers. It provides the possibility of having hot water at the faucet inlets with a circulation connection whenever desired. Another object of the invention is to provide heating in the same tank without requiring an additional water tank, while also allowing the management of water in the same tank. In this way, all the equipment used in hot water connections and heat transfer, transfers their heat to the water in the tank, and this process continues both when the burner is burning and when the device turns off.

Another object of the invention is that it is designed by calculating the hot water values according to the instantaneous water consumption needs, so it is the first in this field to meet all these needs, including a tank that contains all the combi- capable equipment in a single product.

Another object of the invention is that it does not require additional premix unit in combustion equipment, and it provides premix combustion with standard fan and gas valves without the need for additional equipment.

The structural and characteristic features and all the advantages of the invention will be more clearly understood by the figures given below and the detailed explanation written with reference to these figures, and therefore the evaluation should be made taking these figures and detailed explanation into consideration. Description of Figures

FIGURE- 1 is a drawing that shows the sectional view of the natural gas combi-boiler and hot water generator.

FIGURE-2 is a drawing that shows the sectional view of the flue of the natural gas combi-boiler and hot water generator, which is subject of the invention.

FIGURE-3 is a drawing that shows a combi-boiler configuration with boiler of prior art.

FIGURE-4 is a drawing that shows a combi-boiler configuration with boiler of prior art.

FIGURE-5 is a drawing that shows the combi-boiler configuration of the prior art.

Reference Numbers

10. Tank

20. Thermostat Gauge

30. Combustion Chamber

40. Premix Burner

50. Hot Water Outlet

60. Condensate Outlet

70. Pump Inlet

80. Gas Inlet

90. Circulation

100. Dirty (burnt out) Air Outlet

110. Cold Water Inlet

120. Filling Loop

130. Honeycomb Heat Exchanger 140. Boiler Thermostat

150. Radiator Thermostat

160. Fan

170. Pump

180. Gas Valve

190. Ignition Electrode

200. Ionization Electrode

210. Pressostat (Air Pressure Sensor)

220. Closed loop pressure sensor

230. Flue High Temperature Sensor

240. Fresh Air Inlet

250. Electronic Card

260. Isolation

270. Expansion Tank

280. Flue Heat Exchanger

A. Heat Exchanger

B. Combi-boiler

C. Boiler

D. Pipe

Detailed Explanation of the Invention This detailed description relates to a hot water generator that has the characteristics of natural gas combi-boilers and boilers, which is the subject of the invention, developed for homes, villas, flats, workplaces, and living spaces, complies with the energy efficiency requirements in Europe, and provides the use of high amounts of clean hot water and/or ambient heating.

Instant water heaters are designed according to the instant maximum water requirement. The lowest combi-boiler power is 20-24 kW. This power corresponds to 17,180-20,616 kcal. We know that the most hot water consumption in the houses is in the shower. Accordingly, let's make a simple calculation, assuming that it is used at 45 °C with 5 1/min and the water inlet is 15 degrees.

The instantaneous power that the boiler should achieve is 9,000 kcal/hour (45 °C - 15 °C = 30 °C; 30 °C c 5 = 150 kcal; 150 kcal c 60 min = 9000 kcal/hour). It is the amount of instant hot water required in a shower. Considering that there are two showers and a few faucets working simultaneously, a power of 20,000 kcal/hour should be provided instantly. However, this maximum instantaneous consumption takes about 10 to 15 minutes. It will continue. In the boiler calculations, instantaneous consumption value is multiplied by 0.3 by calculating all parameters. In other words, we need to demonstrate that combi-boilers, which do not meet the radiator and clean water heating at the same time, need 20,000 kcal energy at the same time and how much this amount corresponds to in the boiler. These instant consumptions take 18 minutes (60^x 0.3 = 18 min.). Let 18 min x 5 1/min. = 90 1; 90 1 x 30 °C = 2700 kcal and 2700 kcal x 2 showers and a few faucets be 6,000 kcal, i.e. 0.3 times of instant 20,000 kcal. In this case, we need a hot water tank that will store a maximum of 6000 kcal for instant. Let's calculate how many kcals of energy our tank can respond instantly by taking 80 °C of water, 15 °C of water inlet and a 65-litre tank into account: 80 °C - 15 °C = 65 °C; 65 °C ^x 65 1 = 4,225 kcal. This energy is ready to be used in the tank when needed. In addition, our natural gas combi-boiler with a generation power of 9 kWh will be used with a minimum efficiency of 85%. In this case, considering this instantaneous energy of 6,571 kcal (9kw = 9 x 859 kcal = 7731 kcal and 7731 kcal x 85% = 6,571 kcal.) will also be produced simultaneously for 18 minutes (60 min. x 0.3 coefficient = 18 min.), 1,971 kcal (0.3 x 6571 kcal = 1971 kcal) of power is generated in this period. 6,196 (= 1,971 + 4,225) kcal of power proves that our combi-boiler to be positioned in the place of a combi-boiler by calculating the maximum current consumption amount in the apartments will perform the same function. This product is our product that we designed in the smallest capacity combi-boiler criteria and works with over 95% efficiency. In this case, it is much more advantageous compared to the combi-boiler and the feature that differs it from the standard natural gas boiler is that it is designed by calculating these temperature values according to the instantaneous water consumption needs and its mechanisms are working in such a way that it can meet all these needs by having a single product on it and is the first in this field.

For example, the power generation calculation of the 65 1. and 9 kW combi- boiler (65 °C x 65 1 = 4225 kcal, 4225 kcal+ 9kW = 4225 kcal +1971 kcal = 6,196 kcal) in 18 minutes was made according to the coefficient that should be used in comparison to 18-minute instantaneous heaters. So, in this case, how many kW of combi-boiler does this product correspond to? The combi-boiler with a capacity of 65 litres, working with 9 kW, corresponds to the same power as 6196 x (60 ÷ 18) = 20,653 kcal / hour instantaneous water heaters. With the 9kw (9 x 859 = 7,731 kcal) hourly production, a power corresponding to the instant 20,653 kcal is produced for the apartments. This also provides energy savings by providing lower flue gas temperature due to more instant fuel consumption.

Other results are as follows:

18 kW and 100 1. combi-boiler = 43 kW in standard combi-boiler.

27 kW 200 1. combi-boiler = 77 kW standard combi-boiler.

Thus, energy saving is achieved by ensuring the stable operation of the product by using the tank (10) as an energy tank, without increasing the instantaneous consumption, in order to meet the need for instant high amounts of hot water. Accordingly, with the lower instantaneous consumption, the flame chamber is produced in a smaller structure and using less material.

Figure-3 and Figure-4 show the configuration of the combi-boilers with prior art. Here, heat transfer from pipes (D) to external environment occurs, since the water heated in the combi-boiler (B) section is carried to the boiler (C) by the pipes (D), which are in the external environment. For this reason, the heat that goes to the external environment here is wasted and the efficiency of the system decreases. Figure-5 shows the combi structure of the prior art. Similarly, the water heated in the combustion chamber (30) goes to the heat exchanger (A) by the pipes (D). Likewise, the heat that passes through the pipes (D) into the air here is wasted. The most important feature of our invention is that there is no waste of energy situation such as transferring heat to the air, since the combustion chamber (30), the flue heat exchanger (280) and the honeycomb heat exchanger (130) are located inside the tank (10) and thus heat transfer occurs inside the tank. The energy of the heat generated here passes completely to the water in the tank (10) or to the water in the honeycomb heat exchanger (130). Thus, the efficiency in our system is much higher.

Figure- 1 and Figure-2 show the hot water generator that has the characteristics of natural gas combi-boilers and boilers and is the subject of the invention. In the invention, tanks (10) having various volumes are filled from the cold-water inlet (110). The electronic card (250) operates the fan (160) and provides pressure control with the air pressure sensor (210). The gas entering from the gas inlet (80) and the air entering from the fresh air inlet (240) mix and begin to burn in the premix burner (40). The burning gas gets out of the dirty air outlet (100) by condensing, the water formed in the condensate gets out from the condensate outlet (60). The fan (160) mixes the fresh air with natural gas and sends it to the combustion chamber (30) and discharges the dirty air from the dirty air outlet (100). The heat generated by the combustion performed with the premix burner (40) in the combustion chamber (30) heats the water in the tank (10) while passing through the flue heat exchanger (280). With the combustion chamber (30) and the flue heat exchanger (280) located in the tank (10), it transfers heat to the water instead of wasting it during every cooling or closing period. In the premix burner (40), premix combustion is provided as in modulating systems. In addition, since the air and gas come to the premix burner (40) mixed with each other, the efficiency of combustion is high. At the same time, in the combustion chamber (30), high flames are obtained in the narrow space. Premix burner (40) prevents the heating of the surfaces that transmit the heat directly in the water direction and do not contact the water because it does not burn horizontally. Simultaneously, clean air inlet from the fresh air inlet (240) section of the flue and burnt gas outlet from the dirty air outlet (100) section are also made. When the boiler thermostat (140) reaches the desired temperature, the electronic card (250) cuts the gas and turns the device off. When the radiator thermostat (150) is activated, the combustion starts depending on the water temperature inside the tank (10) and the temperature gauge (20) of the water is activated to heat the radiators when it is suitable for the radiators. The pump (170) operates and lets the radiators’ cold water entering the pump inlet (70) and then transmits the hot water heated by heat transfer in the honeycomb heat exchanger (130) to the radiators. The efficiency of the system is higher when the hot water in the tank (10) does not meet the external environment and the air in the external environment and gives its heat directly to the honeycomb heat exchanger (130).

The expansion tank (270) absorbs water movements at high pressures and protects the installations from pressure damage. If the water closed loop pressure sensor (220) in the combs detects the low pressure, the device malfunctions and in this case the pressure is brought to the required level by using the filling loop (120). In places where circulation is requested, hot water is constantly supplied from the hot water outlet (50) in the installation, it is returned from the circulation (90) inlet with another pump (170), allowing hot water to circulate, keeping the water at the faucet warm and ready. Fan (160) operation is controlled by differential pressure switch. Any dangerous temperature is prevented by the flue high temperature sensor (230). The boiler thermostat (140) controls the hot water, the radiator thermostat (150) controls the radiators. Since there is always hot water in the tank (10), the temperature of the hot water flowing from the faucet is not affected by additional faucet openings. In addition, both hot water for faucets and hot water, which is necessary for heating the water in the radiators, are available in the tank (10). In this way, hot water is given to faucets and radiators at the same time.

The flue system houses the condensate outlet (60) and gas inlet (80). It discharges the burnt-out air from the dirty air outlet (100), takes the fresh air into the fresh air inlet (240). During this process, heat transfer occurs between the dirty air, the clean air and natural gas. It heats the fresh air and natural gas, and it is one of the factors that enables the gas and air mixture to be adjusted to the desired value without the need for modulation equipment.

In line with the commands coming from the boiler thermostat (140) and radiator thermostat (150), when the command for operation comes, the fan (160) runs ahead for cleaning the gases that may accumulate inside and routine the flow. Meanwhile, the air pressostat (210) controls the operation of the fan (160). After the approval of the fan’s (160) operation, the gas valve (180) is turned on (as single stage, on and off). It is possible to modulate the gas valve (180). But there is no need for this in our invention. We provide the same function with the product we create without using modulation equipment.

The fresh air and gas combine in our designed flue unit before the mixture enters the combustion chamber and mixes in the fan (160) and enters the combustion chamber with the premix burner (40). By making continuous ignition instead of three times ignition, the ignition electrodes (190) (combustion of the gas air mixture) provide the combustion ionization electrode (200) (detection of the combustion of the flame) when appropriate gas comes. In cases where there is no combustion and gas is cut, the electronic card (250) commands the error. Safety control is provided by the flue high temperature sensor (230).

Our invention meets the need of hot water by working with natural gas, high efficiency (above 85% efficiency) and full condensing. During combustion, our designed flue system provides heat transfer from the section where the dirty air outlet (100) is located. The increase of the efficiency is obtained with the temperature created by the burned gas (Dirty Air Outlet) (100) providing the incoming clean air (fresh air inlet) (240) to be heated before coming to the fan (160) and by combining it with the desired value of gas and the fan (160) and burning the mixture in the premix burner (40). Here, in a narrow area, high calorie flame is obtained. By completing the condensing, gas burnt in the combustion chamber (30) gets out via the condensate outlet (60) and the dirty air outlet (100). The reason why the dirty air outlet (100) is located under the tank (10) is gaining high efficiency by providing flue gas to get out from the flue losing much of its heat by transferring that heat to the cold water entering from the cold water inlet (110) at the bottom of the tank (10). Another reason is that hot water wants to be positioned above and cold water below. In this case, hot flue gas transfers its energy more with cold water that wants to be positioned below.

Radiator thermostat (150) is for the radiator control of the combi-boiler. The operation of the pump (170) and the pressure control with the closed loop pressure sensor (220) come into play here. It transmits the heated water from the honeycomb heat exchanger (130) to the radiators.

When the radiator thermostat (150) is activated, combustion starts in the same way and the combustion continues until the pump (170) heats the radiators. In this case, when the temperature of the heated water in the tank (10) reaches 90 °C, the combustion stops and only the pump (170) is enabled.

Boiler thermostat (140) and radiator thermostat (150) operate the same product independently. When the pressure control malfunction of the closed loop pressure sensor (220) continues, if the boiler thermostat (140) operates and the radiator thermostat (150) wants to be activated, the malfunction warning light for the radiator thermostat (150) is on but the system operates. If only the radiator thermostat (150) wants to operate, the system fails until the pressure malfunction is removed and the device is restarted.

While the radiator thermostat (150) is activated, the boiler thermostat (140) controls the tank (10). If it reaches 90 °C, it does not command combustion, it only operates the pump (170), or if the demand is 70 °C and the boiler thermostat (140) is 20 °C, it does not operate the pump (170). It waits for the boiler thermostat (140) to reach 40 °C. If demand is 60 °C, it waits for 30 °C. If demand is 80 °C, it waits for 45 °C. Until it reaches 90 °C, the boiler thermostat (140) always warms the water up to 10 °C more than the desired temperature, and prepares it in a hot state and provides operation without the need of igniting again until it cools to the desired temperature. The reason for this is to reduce the number of turn-ons and offs of the device and prolong the life of the product. Also, thanks to the isolation (260), the heat of the tank (10) is maintained.

Alternatively, in the invention, the heat exchanger located on the combustion chamber (30) and performing heat transfer and piped flue heat exchanger (280) can be made double, triple or more. The heat transfer area can be increased by the metal surfaces added on the combustion chamber (30). Different temperatures can be trapped in different sections by separating the water in the tank (10) by the separators in the tank or the additional tank. The cold-water inlet (110) enters through the dirty gas (air) outlet (100) before entering the tank (10) chamber and enters hotter and can cool the dirty gas temperature more. Cold water inlet (110) and dirty gas (air) outlet (100) can be combined in the tank (10), or one-side or several open-side chambers can be formed so that the cold water inlet (110) coexists with the serpentine before the dirty gas (air) outlet (100) with the separator or various equipment. The honeycomb heat exchanger (130) can be designed in the same environment with the heating coil or pipe, or intertwined. Or the honeycomb heat exchanger (130) or its inlets and outlets can be trapped in the water in an environment with the combustion chamber (30) or the flue. Hot water in the flue sections that generate heat can be separated with different reagents and separators. This tank (10) can be open-designed without pressure. All equipment can be positioned in different parts of the tank (10), resulting in different energy gains and benefits.

The scope of protection of this application has been determined in the claims section and cannot be limited to the ones described above for the sampling purposes. It is clear that a person skilled in the art can demonstrate the novelty of the invention using similar embodiments and / or apply it to other areas of similar purpose used in the art. It is therefore clear that such embodiments will lack the criterion of innovation and in particular the overcoming of the prior art.

Claims

C L A I M S

1. The invention relates to a hot water generator that has the characteristics of natural gas combi-boilers and boilers, which is developed for all indoor and outdoor areas, houses, villas, flats, workplaces and living areas, providing hot water use in all quantities and/or ambient heating by condensing and/or non condensing, and is characterized in that; including

at least one premix burner (40), which ensures the highly efficient combustion of fresh air and combustible gas mixture in combustion chamber (30) by including the tank (10) that allows instant supply of ambient heating and/or domestic heating water, allows the fire to bum like in modulating systems, transmits its heat directly to the combustion chamber (30) and the flue heat exchanger (280) by combusting vertically, transmits the heat directly in the direction of the water and prevents the heating of the surfaces that do not contact the water since it does not bum horizontally,

at least one honeycomb heat exchanger (130), which is positioned inside the tank (10) and heats the water used in the radiators that provide ambient heating by transferring heat with hot water in the tank, and prevents the heat energy from being wasted by not contacting with the air in the external environment and outside,

at least one combustion chamber (30) and/or flue heat exchanger (280), which transmits heat to the water instead of being wasted during every cooling or closing by being inside the tank (10),

at least one tank (10), which contains all the equipment that makes heat transfer (hence heat loss) inside, thus transfers these heat transitions only to the water, keeps the hot water ready at all times, meets the demand of domestic water and ambient heating water simultaneously when requested by the user, provides energy savings by ensuring the stable operation of the product by using it as an energy tank without increasing the instantaneous consumption in order to meet the instant need of hot water in high amounts and thus enables the instantaneous consumption being low (meeting the same need with the use of 9 kw instead of 24 kw) and the flame chamber being housed in with a smaller size and less material used.

2. The invention relates to a hot water generator that has the characteristics of natural gas combi-boilers and boilers, which is developed for all indoor and outdoor areas, houses, villas, flats, workplaces and living spaces, complies with the energy efficiency requirements in Europe, providing hot water use and/or ambient heating in all quantities and is characterized in that; including a flue system, which contains the condensate outlet (60) and the gas inlet (80), throws the dirty air out via the dirty air outlet (100), takes the fresh air from the fresh air inlet (240), and at the same time heats clean air and natural gas by transferring heat between dirty air, clean air and natural gas, and increases the efficiency of the system.

3. It has a proportional premix combustion system without using modulation equipment compliant with Claim 1 or Claim 2 and is characterized in that; including the gas valve (180) that turns on and off the gas, the fan (160) that prepares the mixture of air and gas, the flue system, the premix burner (40), where the proportional and efficient combustion takes place, the flue heat exchanger (280) and the combustion chamber, the tank (10) that provides the consumer hot water of desired amount by stable combustion, and a control electronic card (250).

4. It is a hot water generator that has the characteristics of natural gas combi- boilers and boilers in accordance with Claim 2 and is characterized in that; heating the water by the flue gas, entering to the heat transfer with the cold water entering through the cold water inlet (110), which is located at the bottom of the tank (10).

5. It is a hot water generator that has the characteristics of natural gas combi- boilers and boilers in accordance with Claim 1 and is characterized in that; including an electronic card (250) that provides the communication and coordination of all equipment, does not need the modulation equipment and hardware required for premix combustion, does not need to follow the instant water degree according to water consumption, controls only the combi-boiler and/or boiler system in all these aspects evenly and respectively, meets the same requirement (combi) with less hardware, and controls the entire system with software.