To create comfortable conditions, the owners of mansions and apartments are increasingly striving for the arrangement of innovative warm floors, one of whose species is functions, due to the supply of water pipes under a certain way, heated to a certain temperature. In this case, it is important to competently pick up a water-mall boiler that meets all the requirements and suitable for specific conditions.
Boilers, which are one of the most important devices in a water heating system, must correspond to a number of requirements, the execution of which guarantees the duration of impeccable operation:
According to the degree of autonomy, one of the key criteria, depending on which the boiler is selected, its electric variety is leading, due to the absence of combustible substances. Having automatic settings, it does not require human intervention, independently restoring the mode in cases of short-term power outage. It also attracts its reliability, compactness, affordable price.
Arrangement with such a boiler of a warm floor does not require expensive strapping, due to the initial water temperature, which is a coolant, 25 ° C. It is enough to mount the collector to connect several contours.
A modern electric boiler for warm water floor has three varieties.
Environmentally friendly, non-tiering atmosphere of home products of combustion, it is convenient to accommodate its placement by almost anywhere. The only difficulty can be the need for local wiring. Among the disadvantages there is an increase in energy consumption (consumption per 30 cubic meters of ≈ 1 kW / hour). In private households where frequent interruptions with electricity are possible, it is advisable to install a combined view providing for the version of the backup boiler with solid fuel.
Modern modifications of gas boilers must be equipped with electronically controlled temperature parameters, ensuring the safety of the system functioning.
In order for the automation and circular pump for warm water floors, in case of disconnection of the main supply of electricity, it is advisable to stock the local source. Several hours of operation will provide car batteries. In situations where there is a risk of frequent electricity outages for several days, you will have to purchase a diesel generator.
Compared to the electrical model, the gas boiler is a model of economy. The condensing appearance is characterized by a condensing type that receives integrated heat from fuel combustion (explicit energy) and from steam condensation (hidden thermal energy).
The principle of operation of the boiler is based on the circulation of the coolant in the exchanger, in the process of which it heats up from flue gasesobtained when burning fuel. When the heat transfer of the heat is cooled, and at a certain temperature, condensate is formed, which causes the appearance of additional heat. Such a feature significantly increases the efficiency of heating equipment.
Gas boilers are perfectly functioning under conditions of uninterrupted gas flow, without requiring special methods for current maintenance. In the structures where the electronic mechanism for conducting the ignition of the boiler is provided, the functioning of the burner is regulated in accordance with the specified temperature indicators with the discharge of all malicious combustion products by means of forced ventilation. Boilers with piezorozhig, working automatically, the gas flow also stops if the flame went out, but the burning is restored manually.
To spend proper connection Warm floor for boiler should choose an autonomous room. The arrangement of such a system in a standard apartment will require qualified consultation.
Air connection to the boiler
The mounting algorithm includes a number of stages, given the correct connection of a water collector for a warm floor that serves as a guarantee of further impeccable work.
The comfort of warm floors creating a uniform thermal background throughout the volume is difficult to overestimate. They acquire a special relevance in autonomous residential buildings, they also find application even in apartments, where there is an opportunity to equip local heating equipment, since the connection of water heating floor to the heating system coming from the central boiler room is prohibited for several reasons:
The use of its own heating system implies the presence of a mixing unit lowering the temperature of the coolant, since when heating the house, the liquid is heated to 75 ÷ 90 ° C, and for the floor is allowed ≤ 50 ° C.
The sequence of work includes several stages:
Fluid out hot pipe The heating system passes mixing with cold water to the desired temperature in a three-way mixing valve. Then, with the help of the pump, it is supplied to the heating, placed in the desired sequence, the contour of the floor. Passing the entire area and giving heat, one part of the fluid enters the cold pipe of the heating system, and the other is absorbed for later use in mixing knot.
The temperature sensor adjusts the parameters of the coolant, controlling the functioning of the three-way valve and the pump. By making a trial start after complete installation, the degree of comfort is estimated to be the achieved temperature temperature of the floor. If there are problems, the sensor is configured towards decreasing or increasing the initial values. You can adjust the three-way valve on the desired coolant feed.
You can apply a two-way faucet or a supply valve with a thermal head equipped with a sensor that controls the opening intervals or closing the pipe supplying the heat carrier in the floor circuit. Stones hot water In such a device is not permanent, as in the previous case, but is carried out only in the interval when the crane is open. It is necessarily provided for by the presence of bypass, which is equipped with a safety valve, triggered if pressure becomes critical at the inlet to the collector. Part of the water is reset to the reverse highway, which prevents the floor overheating.
Air connection to the boiler
Air connection to the boiler
Collector - Air connection to the heating system
Connect a warm floor
Installing and connecting a warm floor
Warm floor - connect with your own hands
Air connection to the central heating system
Having worked out everything possible optionsYou decide to use water warm floors for heating at home. It remains to choose and purchase a water treatment to work with these sexes, and then the question arises - how the boilers for the warm floor are correct. The purpose of this article is to help with solving issues related to the choice of the boiler serving the floor heating system.
Special water heating plants intended for a warm floor do not exist. True, some manufacturers of gas units offer models with a warm floor mode, but it is only a built-in function of limiting water temperature. The fact is that in radiator schemes and outdoor heating a different temperature of the coolant. In the first case, it reaches 95 ºС, and in the second - maximum 55 ºС, the average temperature in floor circuits is 35-40 ºС. With the "Warm floor" mode, the heat generator automatics limits it at the level of 45 ºС and it turns out that the boilers have been working in a certain power together with floor heating in the random, and this is irrational.
To serve water warm floors can the boiler of any kind, the whole thing is in its correct strapping and connecting to the heating circuits, so that the heat capacity of the boiler is used as efficient as possible. To begin with, we will define the criteria for which the selection of the boiler installation that maintains water heating is required:
This list does not include the cost of heating, because each homeowner seeks to use the most affordable energy source for heating. For some, this is natural gas, someone brings cheap firewood, and someone favorably trample with electricity due to the fact that a multi-tariff electricity meter is installed in the house. Therefore, our task is to consider all possible options so that everyone can make a reasonable choice of a boiler for warm water floors.
The degree of compatibility heating equipment With contours of outdoor heating - this is the ability of the boiler to maintain a low temperature of the coolant at a sufficiently large consumption. If it is impossible, it is necessary to provide optional equipmentallowing to reduce the temperature of the water and at the same time ensure consumption taking into account the power of the warm floor.
The efficiency of the heat generator affects the consumption of energy carriers, and the convenience of operation is determined by time, which is paid to the homeowner heating equipment. That is why these criteria need to be considered when selecting the source of heat, as well as complexity mounting work and strapping affecting the original cash investments.
First we list, and then consider in detail all kinds of boilers for warm water floor:
An ideal option in all respects is an electric boiler regardless of its type (lane, electrode or induction). By spending 1 kW of electricity for the production of 1 kW of warmth, the unit absolutely calmly supports the temperature of the coolant at a given level, without licking in efficiency. With a device of outdoor heating in small houses The heat generator can be connected to circuits directly by setting the required temperature on it.
As for large cottages, in this case, electric boilers for warm sex are joined by the system through the distribution unit - the mixing unit will be mentioned below. The units are fully automated and do not require interference in their work as well frequent service Or cleaning. Again, they do not need chimneys, which greatly simplifies the installation. The only drawback is the presence of the necessary electrical power of the network, the rest of the electric focus is the best that can be offered for outdoor heating.
Council. Since the Water Heat Connection System itself assumes the presence of electricity for the functioning of the circulation pump, then when choosing a heat source, you should not focus on its non-volatility. Without electricity, it's still not to do.
Theoretically, the thermal generators on natural gas can maintain water temperature at 40-45 ºС, but lose their effectiveness. Why? Everything is simple: the heat exchanger of the installation is calculated on the basis of the normal operating mode with the temperature of the coolant 80-90 ºС and the difference between the feed and return pipe in 20-25 ºС. Then the heater issues the declared thermal power. In our case, the gas boiler for a warm floor should provide an average temperature of 40 ºС with a difference between the supply and a return of 10 ºС. The efficiency of the unit will inevitably fall by 10-15%, so connect the gas boiler directly to warm floors Not recommended.
To combine gas heating equipment with outdoor heating circuits without loss of efficiency, you need to use a mixing unit with circulating pump and distributor by premises. How to do this, displays the scheme of warm floors with a gas boiler:
In the main contour with the boiler, the water circulates with a temperature schedule of 80/60 ºС, a penetrated by the pump in the boiler room. Inside all contours of outdoor heating, the coolant with a chart 40/30 ºС moves another pump, and the three-way valve mixes hot water from the external network to them as needed. Such a connection of water warm floor to the gas boiler allows you to securely and economically operate the entire system. At the same time, the intervention in its work is not required, as applies to the installation, then the costs will be higher than in the situation with the electric heater.
All of the above equally applies to diesel (liquid) aggregates. By technical characteristics and the degree of automation they are close to gas, so the connection of the warm floor to the boiler on the diesel coolant is also carried out through a mixing unit that performs the distribution functions.
This type of heat generators requires constant attention and maintenance, and on compatibility with the warm floor, they are most problematic. An exception is the pellet boilers, but they need to visit them more often than to gas or electric. To keep the temperature of the coolant during the burning of firewood at least 60 ºС, the automation has to constantly "stroke" the furnace, limiting air intake, so a solid fuel boiler for warm floors will also lose in efficiency.
To avoid this, it is more correct to use the buffer capacity of a large roominess or a hydroaccumulator. Then the unit will be able to fully use the heat of the combustion of firewood, transmitting it water in the container, and the outdoor heating will take as much as required. Thus, it is possible to increase the pause between the fuel boots. Below is a diagram of a warm floor connection to the boiler burning. different types Biomass:
As can be seen from the scheme, the installation of the heating system from a solid fuel boiler will be the most difficult and expensive, which should be considered when choosing a heat source.
Of all the above, we can conclude that it is more convenient and cheaper than all to put an electric heater, a little more complicated and more expensive - gas, and the most expensive and uncomfortable is a solid fuel boiler. Do not forget about the device "Pie" and the base of the warm floor, which also costs a lot of money. How it will pay off afterwards - each homeowner decides in his life situation.
In the article we are going to discuss heat sources for low-temperature heating. Is the electric boiler for a warm floor suitable? Is it difficult to connect a solid fuel boiler to the pipe laid in the tie?
We will try to find answers to these and some other questions.
Warm floor is convenient and practical. However, he, like any heating system, need a heat source.
To begin with, let's decide how the warm floor for an apartment or house is fundamentally different from radiator heating in terms of selecting heat source.
The answer does not have to search for a long time. Touch in winter to the heating radiator. Excuse me, what did you say? And he was heard ... And now imagine that the same temperature has the floor.
So, we formulate a key difference: in the heat-mall system, the temperature of the coolant must be limited to about 40 degrees.
Exceeding this value will make an extremely uncomfortable stay.
And now let's deal with how good the boilers using various sources of thermal energy are as good in these operating conditions.
Of course, we will estimate not only the ability to maintain the desired temperature, but also a number of equally important parameters:
From this point of view, electric boilers for a warm floor are the worst solution from possible. For the production of kilowatt-hour heat, they require exactly one kilowatt-hour electricity. And its price for most of the country is approaching 4 rubles.
Perform a simple calculation. Suppose that the average daily need of the house in heat is equal to 10 kilowatts. In this case, the costs per day at a tariff of 3.5 p / kW * h will be 10x24x3.5 \u003d 840 rubles. For heating - prohibitively much, is it not true?
Clarify: Electric concrete for a warm floor can do much cheaper if you have a two-tariff counter.
Thermal inertia allows the use of full boiler power only at night when electricity is cheaper.
But from this point of view, the electrocotel will fully rehabilitate himself: it does not require maintenance at all. It is enough to set the desired temperature of the coolant or, in the presence of a remote thermal sensor, air - and the device will continue to work in a fully offline mode. Programmable boilers are capable of adjusting the temperature within the framework of the daily or weekly schedule.
Warm floor and electric flocity are conjugate without any problems. At all. The working temperature of the coolant for most models begins from 25 degrees, so no expensive strapping is required. You only need a collector, and in the case when several contours are connected to one boiler.
A pleasant bonus is the lack of the need to remove combustion products. Thanks to this feature, an electric heating device can be mounted anywhere in the house, without binding to ventilation or outer walls.
The warm floor from the gas boiler is, in contrast to electricity, the most economical heating. The rational distribution of heat characteristic of low-temperature heating systems is superimposed on the minimum cost of kilowatt-hour heat obtained when burning natural gas.
Useful: The efficiency of gas boilers varies from 60% of the oldest models produced in the 70-80 years, to ... 110% of modern condensing boilers.
Of course, the efficiency is above 100% - no more than a marketing trick: for 100% the so-called lowest heat combustion is taken, that is, the amount of energy released directly during gas burning.
Additional energy is mined as a result of condensation of combustion products.
Convenience and autonomy Gas boilers for warm sex are practically not inferior to electric. Devices with electronic ignition are able to control the temperature by thermostat, ignite and extinguish the burner, depending on the need for heat and forcibly divert the combustion products.
Piezorozhig boilers, however, can only automatically maintain the desired coolant temperature and turn off the gas supply when the pilot burner is disappeared. Fish the flame is re-manually. However, the limited functionality of this device class is compensated by their total non-volatility.
In the photo - gas boiler with piezorozhig.
Condensation gas boilers for warm floors are almost perfect: the temperature of the return temperature is needed for their work not above 40 degrees.
How to dispose of redundantly high flow temperature?
The traditional gas boiler, however, requires a sufficiently high feed temperature - at least 60 degrees. The restriction is due to the fact that at a lower repetition temperature, combustion products will begin to condense on the heat exchanger, which is undesirable.
They are rather aggressive, and the heat exchanger material, in contrast to the condensation boiler, is much worse against corrosion. Is it possible to solve this problem when installing heating with your own hands?
The instruction is quite simple, but will require additional expenses.
From this point of view, the warm floor from a solid fuel boiler is inferior only to the main gas. Alas - in the 21st century, it is still profitable to drown coal or firewood. Electricity, diesel fuel and liquefied gas cost much more expensive.
We put a bold minus.
List of problems solid fuel heating Pretty extensive:
Horror, horror, horror. But he sometimes has to put up - the main gas is not everywhere.
It is clear that in this case the warm floor from the heating boiler is not directly powering. The temperature of the coolant will be too high, and the problem with the uneven heating during the day of enthusiasm does not add.
The solution may become a scheme similar to the above: the connection to the heat-inside boiler is carried out through a massive capacity - the heat-cumulator. In fact, two independent contours with different coolant temperatures are formed.
Please note: we get a bonus with a constant temperature of the heating circuit.
The boiler on the rated power heats the water in the tank, then the accumulated heat is given to the floor for a long time.
Schematic diagram of the use of tank - heat accumulator.
It seems that the leader in the combination of efficiency and functionality is obvious. Condensation gas boiler is an optimal solution for low-temperature heating. As always, the video in this article will formulate the topic clearly, thereby more fully, see. Successes!
Heating at home or apartments in winter time And the costs of it are worried almost all. Warm water field, which can be mounted independently, will good decision tasks. The pipes on the boiler (or other heating system) are connected to hot water circulates. Pluses of this system: low cost of electricity and the ability to independently regulate the temperature in the room. It is very important to choose an economical boiler that is as suitable for specific conditions. Most. an important indicator There will be a thermal power of heating equipment.
Boilers are divided into single-circuit and dual-circuit boilers.
Single-mounted boilers. Single-connecting boilers in the heating system provide only heating of the coolant (only room heating is possible). To expand the scope of application of single-circuit boilers (providing hot water) Additional devices are required:
Double-circuit boilers - Multitasking devices: provide heating and heated water. The second function is performed by equipping the boiler with a built-in flow heat exchanger or built-in cumulative boiler.
Variety of installation boilers:
Wall boilers (most often it is an atmospheric type device) more convenient from the point of view of installation and require less expenses.
For boiler S. closed chamber The combustion does not need an additional area in the form of a separate room. Wall boilers are equipped with a circulation pump and other equipment for the boiler room. To introduce into operation, it is enough to attach the heating pipeline and pipes for hot water. Boilers with built-in storage boilers per 100 liters are ready-made mini-boiler
To arrange warm water floors, boilers operating on gas, electricity, solid or liquid fuel are used. Each view has its advantages. Gas, and autonomous - diesel are most economical.
Gas boilers.The body of gas boilers can be made of steel or cast iron. Steel units are distinguished by low weight (about half easier cast iron at the same power), small dimensions and good maintainability. Cast iron devices are more voluminous and expensive. Floor gas boilers of the modern generation are suitable for the main gas and for liquefied. Small wall-mounted gas boiler dimensions allow accommodation in any convenient location, and the power of 7-30 kW is enough for a small cottage.
Diesel boiler Works on diesel and distinguished by high efficiency and performance. During the operation of the equipment there are no unpleasant odors. Other advantages of this type of boilers include simplicity of installation, convenience of maintenance and control, high efficiency and low fuel consumption. Liquid boilers due to the special mode of operation based on a smooth decrease in water temperature in conditions of elevated ambient temperature, differ in economy and environmental friendliness.
Solid fuel units For the arrangement of water heat, there will be a completely autonomous source of heat supply. They are considered a good alternative to liquid-fuel, gas and other types of heating equipment. Fuel combustion occurs according to such a scheme: Firewood, laid on the grate, are set on fire. After that, the boiler door closes, and the smoke is turned on. In the inner chamber of the boiler on firewood affects heat (250-750 ° C) without access of oxygen. There is a charring and the release of wood gas, which heats the thermal carriers. Scope of the application of solid fuel boilers: residential and industrial premises, Agricultural facilities.
Electric boilers
Suitable for residential and non-residential facilities equipped with water outdoor heating. The system connects to the boiler using special equipment and additional devices. The selection of the power of the device affects the area of \u200b\u200bthe room, its condition and other factors. The most optimal power can be selected in rooms with good thermal insulation of walls and ceilings (for example, in new buildings). If there is good thermal insulation, then the manufacturer for heating 150 sq. M. Square considers a sufficient power of 12 kW.
For tandem "Electric boilers - warm water floors", manufacturers recommends the following combinations:
To compare two types of boilers, it is necessary to take into account all factors. Despite the low cost of diesel fuel in comparison with electricity, all cost estimates will show a real picture.
Initial cost of buying equipment and installation cost
Electric boiler - ready-to-use device. The liquid-fuel unit will require additional costs for the purchase of a boiler, mounted burner, fuel storage tank. The difference in the consuming part 2.5 times in favor of electric.
Installation of the electric boiler will cost several times cheaper, since all necessary elements To control the equipment and safety of the equipment is mounted in its housing. The liquid-fuel device needs installation of additional devices: chimney, fuel tank, hinged burner.
Operating costs
For servicing a liquid fuel boiler, expenses are needed (several hundred dollars a year) regular service And cleaning. Additional inconvenience is associated with the need for permanent orders for the supply of fuel. Electric boilers do not require listed operations.
However, electrical devices There are also disadvantages.
If a water heating It is done in a house or apartment within a big city, the electrocotels are most preferred of all kinds. This is due to the stringent environmental requirements and coordination problems.
After analyzing the situation, you can allocate A number of advantages of electrocotors:
Heating installations depending on the characteristics provide various heat efficiency, suitable for a specific area and operating conditions.
Calculate the required power of thermal equipment is necessary for right choice boiler. Approximate required power for heating country house It is calculated on the basis of such data: to drop 10 m2. Square, 1 kW of power is needed, that is, it is assumed that the specific power is 100 W / m2.
The calculation is quite rough, and it is suitable for brick house With small heat lines: the building should be well insulated, the ceilings - no more than 3 meters high, metal-plastic windows With double double glazing.
To increase the resource of the heating system and the heat reserve, it is necessary that the temperature of the coolant is at 65-75 ° C. For this boiler power (in ideal conditions) Increase by 20-25%.
With any additional load, an increase in power is required. In the case of hot water with cumulative boiler It is necessary to add another 30-40%.
If in the future it is planned to expand the heated area, the arrangement of water heat, the water heating pool, the boiler must be purchased immediately with a power designed for further changes.
If the warm floor is planned as an element that complements radiator heating and an increase in the comfort of living, its heat transfer is considered not higher than 50 W / m2.
Requirements for the room:
Requirements for communications
