Floor-standing gas boiler with boiler - why this is an option. Choosing a floor-standing gas boiler with a boiler - heat accumulator Floor-standing gas boiler with a boiler

A floor-standing gas boiler is practical, reliable and quite simple, the main advantage of which is that it does not depend on electricity. Such boilers are economical, equipped with reliable automation and maintain the set temperature.
If natural gas is available, it would be more advisable to give preference to a floor-standing boiler rather than a wall-mounted one. A floor-standing gas boiler is indispensable for a private home, because it can provide heating and hot water large premises.

A floor standing boiler with an integrated cylinder is ideal for generating large amounts of heat and maintaining comfortable temperature in room.

Features of boilers with a boiler

With an additional boiler, a chimney must be installed. The chimney for a floor-standing gas boiler should not be narrowed. Gas floor-mounted chimney boilers automatically turn off if the gas suddenly disappears or turns off.

They are also configured to automatically turn off if there is no draft in the chimney.

Such boilers are installed when the power supply is unstable. A chimney for a floor-standing gas boiler is important element, which must be taken into account when installing the boiler.

Some gas boilers require an ordinary chimney, while others require the installation of a coaxial one. Therefore, before installing the chimney, you need to carefully read the instructions for the gas boiler. With some boiler models, the chimney is already included. Conventional chimneys lead upward, but a coaxial chimney leads into the wall, as it is mounted horizontally.

Some experts argue that it is better to purchase boilers that only work to heat the room, without heating water, considering heating water with a boiler to be economically unprofitable. And some, on the contrary, believe that boilers with DHW mode are a profitable investment.

Specifications

Floor-mounted ones include steel and cast iron heat exchangers.

The steel heat exchanger is not afraid of impacts and is slightly lighter than cast iron. A cast iron heat exchanger is more fragile and there is a risk of microcracks forming.

A floor-standing gas boiler can be equipped with atmospheric or inflatable burners. The latter are much more expensive and boilers with such burners have greater efficiency. The burners in such boilers can operate on both gas and fuel. Atmospheric burners are simpler and cheaper, and operate quieter. Usually atmospheric burners come complete with a floor-standing gas boiler, and inflatable burners must be purchased separately.

When buying a floor-standing boiler with a boiler, you should definitely take it into account specifications:

thermal load;
power;
volume of water in the boiler;
Weight, dimensions and manufacturer.

What to consider when choosing a boiler

Exist gas boilers with one and two circuits. The difference between them is that a double-circuit boiler combines two functions at the same time: it heats the room and provides hot water. A single-circuit boiler, accordingly, performs only one of these functions - heat supply.

A double-circuit boiler is a more convenient and economical option, as it is used as a home heater and replaces a water heating column. The boiler can be connected to both a single-circuit and a double-circuit boiler.

What should you pay attention to before choosing a floor-standing gas boiler and what parameters should you take into account? The main thing that needs to be considered is the conditions for placing the boiler and the power of its operation.

The boiler is connected to the boiler if high water consumption is expected and it is necessary to heat a large space.

Extends the life of the boiler, improves its operating mode and perfectly withstands constant temperature changes. The capacity of built-in boilers can be from 40 to 100 liters. When installing a boiler, it is necessary to install cleaning filters that prevent the appearance of scale.

Gas floor heating boilers with a built-in boiler are used for hot water supply and heating. The coolant is process water. A floor-standing gas boiler has its negative and positive characteristics.

Gas floor heating boilers have a long service life and have no power limitations. Such boilers have a fairly high cost of the boiler itself and its equipment.

Floor-standing gas boilers with a boiler are a system with which, without extra costs Not only heating, but also hot water supply is organized. In almost all modern models The boilers have a DHW mode and automatic switching between heating and DHW modes. Such a boiler is capable of supplying water to a family of up to 6 people and heating the premises large area.

More on this topic on our website:

Installation of a floor-standing gas boiler differs significantly from installation of a wall-mounted boiler. A floor-standing boiler is often much more powerful, its assembly diagram is more complicated...
Faced with the need to install heating equipment, the owner of the house will definitely ask himself the question of which heating boiler to prefer: a wall-mounted one or...
Floor-standing gas boilers are powerful enough to supply large areas with heating and hot water. They are double-circuit and...
Let's see how to hide a floor-standing gas boiler in the kitchen in the corner - the photos will show us how to arrange...

All their pros and cons will become clearer in comparison with similar models in which hot water is “prepared” in a flow-through heat exchanger.

Advantages

Providing the house with hot water regardless of the pressure in the cold water main. The peculiarity of double-circuit gas boilers is that their automation, with a sharp decrease in pressure in the circuit, may not switch the unit to DHW mode. This happens during periods of high water consumption. As a rule, in the evening, when housewives cook, wash, and bathe their children. For models with a built-in boiler, all this is not critical - they will provide the house with hot water in any case. Even if the automatic protection circuits block gas fittings and the boiler will stop for a while, hot water will still flow from the boiler.
When connecting this heating device no additional equipment required, according to insufficiently informed people. By analogy with conventional models, it is connected to two main communications - water supply and industrial/voltage networks.
Extended service life. This is explained by the fact that traditional double-circuit wall-mounted boilers if it is necessary to obtain DHW, they constantly switch from one mode to another. The result is increased wear of individual components. In this plan heating installations with a boiler they are more durable, that is, their maintenance-free life is somewhat longer.
Optimal combination indicators such as boiler power and tank capacity for water. Those who choose the option of providing domestic hot water with a single-circuit unit with the connection of a separate boiler, also independently, are most often not satisfied with the result. The reason is the irrational distribution of thermal energy, which is caused precisely wrong selection equipment. In boilers with a built-in boiler, its capacity exactly corresponds to the power of the installation, so there are no problems with heating or increased gas consumption for such models.
The hot water tank protects the extract air circuit from overheating, as it acts as a kind of “buffer” tank, taking away part of the thermal energy for cooking hot water.
The consumption of “blue fuel” of double-circuit boilers with a built-in boiler is somewhat less. But looking into the future, the savings can be quite impressive.
Lack of inertia DHW circuit. hot the water is flowing immediately after opening the tap.

Flaws

To be fair, it is worth noting that not all the disadvantages of wall-mounted boilers with a boiler have great importance in terms of installation and further operation. A serious analysis of the relevant information allows us to conclude that some of them are contrived (usually by competitors), while others are based on a superficial understanding of the essence of the issue. Everyone can assess for themselves how significant the existing shortcomings are, knowing the features of their home and their own capabilities for caring for the air conditioning system. What is put into minus? double-circuit boilers with a boiler?

Built-in reservoir increases dimensions heating installation and its weight. Fair, but only partly, since we're talking about just about an increase of a few cm And kg(depending on model).
Small boiler volume. This means that such a unit will not fully meet the need for hot water if it is used extensively. Double-circuit wall-mounted boilers with a hot water tank are available in several modifications. The minimum capacity of the boiler is 10 liters, the maximum is 60. For a family of 5 - 6 people, 35 - 40 is quite enough. Any specialist will confirm this, since it is unrealistic, for example, for all household members to take baths at once or to open all the hot water taps at the same time . The already designated “Baxi” boiler is equipped with a 40 liter boiler. As they say, in most cases, “behind the eyes.” In addition, many models have the ability to attach storage boiler(for example, 250, or even 500 liters). Therefore, talk that hot water will flow in literally a matter of minutes is, at a minimum, incorrect.
Maintenance becomes more difficult heating unit. This is explained by the need to regularly clean the DHW tank. Absolutely fair, if not for a single nuance. In any home there are other devices (except for the boiler heat exchanger) that are somehow connected in their work with water. A prudent owner, so as not to engage in systematic repairs of the same washing machines, dishwashers and so on always thinks through water treatment issues. Depending on the quality of the liquid, various modifications of filters or treatment plants. So it is completely pointless to say that there will be any special problems with the boiler boiler.
High price. Significant drawback. But you have to pay for any convenience, and hardly anyone will argue with that.
The difficulty of choosing an acceptable model and tying it. Undoubtedly. The main difficulty that many experience when assessing the feasibility of purchasing boiler equipment is determining the optimal power of the installation. The most common recommendation is a proportion of 1 to 10 (kW/m2). But this ratio is average and does not take into account many factors - the features of the structure (wall material, layout), its location on the ground and a number of others. When applied to double-circuit boilers with a boiler, this formula “does not work” at all, since part of the thermal energy is spent on preparing hot water.

Comfortable life in own home impossible without a hot water supply system. And if city residents have long ago acquired electric water heaters, then for cottage owners this method is unproductive and quite expensive, because heating water in a private house is required not for 2-3 summer weeks, but throughout the year. Optimal solution for - installation of gas boilers.

The main advantages of a gas hot water system

Gas boilers in country houses have been used for a very long time and have known benefits.

First of all, we are talking about the availability of blue fuel, its low cost and the relatively low cost of the equipment itself. The second important advantage is the ease of use of heating devices and their maintenance.

On to the cons gas system hot water supply can be attributed complex circuit installation of equipment and a difficult procedure for obtaining permission to commission from supervisory authorities.

May have the following differences in their functional features, installation methods and your bandwidth:

wall-mounted or floor-mounted;
single-circuit or double-circuit;
with or without boiler.

Accordingly, a wall-mounted boiler with a boiler can be single-circuit or double-circuit, and a floor-standing boiler can be with or without a boiler.

The combination of options depends on the specific requirements for the DHW system.

How to choose the right boiler

The first thing that needs to be determined when choosing a boiler is the number of circuits.

Single-circuit boiler

A single-circuit boiler, regardless of whether it is floor-standing or wall-mounted, assumes that water will be supplied through only one circuit. Simply put, the boiler will only work on e or only supply hot water.

If hot water supply is required for a house that already has a single-circuit boiler, then in this case it will be necessary to expand the capabilities of the single-circuit boiler by installing an additional boiler with an outgoing second circuit for DHW.

Double-circuit boiler

A double-circuit boiler is a heating device consisting of two heat exchange units. One unit heats water for heating, and the second prepares hot water for domestic needs.

A double-circuit boiler can be instantaneous or storage (with a built-in boiler). A flow-through boiler heats water as it passes through a heat exchanger, and a wall-mounted boiler with a built-in boiler heats it in a special container that accumulates water and maintains its temperature.

The heating capacity of a flow-through boiler is 15 liters per minute up to a temperature of +30C. Typically, preference is given to wall-mounted gas boilers with a built-in boiler.

2. Second important aspect when choosing a boiler - the type of installation. Depending on the type of installation, the boiler can be wall-mounted or floor-mounted.

Wall boiler

In Russian homes, a boiler room with a wall-mounted boiler is very popular. Popularity wall-mounted boiler This is explained, first of all, by its compact size: it is not necessary to have a special room for its installation, so such a boiler is placed in the hallway, in the bathroom and in the kitchen. This is possible, among other things, due to the fact that wall-mounted boilers look very aesthetically pleasing. In addition, such boilers are silent, light weight and low cost.

Among the disadvantages, it is worth noting the increased demands on water quality; even the most powerful wall-mounted boilers have limited power, so their use is possible in houses with an area of up to 400 m2.

In addition, if you look at the diagram of a wall-mounted boiler, it becomes clear that its steel heat exchanger is heated by a special burner to ultra-high temperatures during operation. Because of this, the service life of a steel heat exchanger is significantly inferior to cast iron heat exchangers for floor-standing boilers: 15 years of operation for wall-mounted boilers versus 25 years for floor-standing boilers.

Floor standing boiler

A floor-standing boiler, as its name suggests, is installed on the floor. It has a large weight and dimensions, so it requires a special boiler room. Among the advantages: long term service (25 years), indifference to water quality, large power range, cast iron heat exchanger. Combines the qualities of a flow-through and storage boiler. Among the disadvantages are the impressive cost, noise and large size.

3. When choosing a boiler, you will also have to decide on the need to use an additional boiler.

Why do you need another boiler?

The design of a gas wall-mounted boiler often assumes the presence of a built-in storage tank, but its volume is not always enough for a family, because a 35 kW gas boiler can provide hot water to a family of only 2-3 people living in a house with an area of up to 250 m2.

If the house has water-heated floors, and also if hot water is used to water the winter garden, garden plants or to fill the pool, then the built-in boiler is not able to cover such costs. That is why gas boilers with a boiler - wall-mounted or floor-mounted residential buildings with an area of over 250 m2 they are almost always equipped with another boiler.

The volume of built-in storage tanks in gas boilers is usually no higher than 60-80 liters, and the volume of a wall-mounted boiler indirect heating varies in the range from 150 to 500 liters. As you can see, the increase is more than significant.

Heating systems

One of the most famous devices heating systems are considered to be double-circuit gas boilers with a boiler. This is explained by their following features:

affordable price;
no need for auxiliary equipment;
compactness.

What makes it easy to use these heating devices? What are the features that make wall-mounted modifications with a built-in boiler so popular?

This equipment is designed to simultaneously heat water for heating system and for household needs.

Its main feature is the boiler built into the body. This solution allows you to use warm water at any time.

Unlike instantaneous water heaters, in geysers no need to wait for the water to heat up desired temperature. Hot water appears immediately after opening the tap.

Advantages and disadvantages

The main advantages of dual-circuit systems are:

Possibility of heating and storing warm water in a storage tank, including summer time years when no heating system is required.
Economical and no waste of water. This is especially important when the residential premises do not have a centralized sewage system. Water heated in a boiler maintains its temperature for a long time and does not require heating, which also provides additional savings.

Comfort. Unlike single-circuit units, which include an indirect heating storage device, a double-circuit unit is fully controlled automatically. Therefore, it does not require the use of any additional devices to ensure its effectiveness.
Compactness. The dimensions are only slightly larger than those inherent in conventional equipment. The drive is built into the case, where it is also located expansion tank and a circulation pump.
Ease of installation. This type of equipment is, therefore, must be connected not only to the gas pipeline, but also to the electrical network. No installation required additional equipment significantly speeds up and simplifies the entire connection process.
Price. Some models of indirect heating storage tanks are priced the same as a boiler with a built-in boiler.

The equipment is intended primarily for domestic needs and non-industrial use. These units have proven themselves to be excellent in providing hot water and heat. small houses. Their maximum power can reach 40 W.

Attention! When choosing this type of boiler, first of all, you need to pay attention to the technical characteristics of the storage device.

It is worth taking into account the fact that for big family a regular size boiler (40-60 liters) will most likely be small.

The bulk of the shortcomings that may exist in a double-circuit gas boiler with a built-in boiler can be eliminated very simply and quickly, without affecting its operating capabilities.

Below are the main disadvantages and how to eliminate them.

Energy dependence. A power outage causes equipment to stop operating. Automation, circulation pumps They work only with electricity. To save yourself from this problem, it is recommended to purchase a UPS (source uninterruptible power supply), which starts working at the moment of a power outage.
Malfunctions. Regardless of which node in the device fails, the operation of the entire system is completely blocked. To prevent this, it is recommended to carry out this regularly, once a year before the start of the heating season.

Is it necessary to buy such equipment?

Why is a boiler needed in a gas boiler? It allows you to receive hot water for domestic needs without delay at any time of the year, even if it is over heating season. At its core, this equipment simply replaces a conventional water tank powered by electricity. As a result of the application, significant savings are achieved, which are most significant in winter time when the water is heated by the heating system.

If you calculate the costs of purchasing such equipment, then purchasing a product with a built-in storage device turns out to be much more profitable. Owners of private houses who do not have the ability to connect to a boiler should definitely buy such a boiler. central system hot water supply.

People who do not have enough space in their apartment or house to equip a boiler room often try to save space and purchase a double-circuit boiler. This is a smart choice, however, in order to provide your family with hot liquid for the bath and everyday life, you should take care of the availability of additional equipment. Choosing a suitable tank is not difficult; you can take a tank or other container. However, to make the task easier, you can simply buy a special gas boiler with a boiler.

Possibility of connecting a boiler

A boiler for a gas boiler is a storage tank, inside of which a heat exchanger is located. This model is essentially a dual-circuit model, as it has connections for both the heating system and the hot water supply.

Double-circuit models have a built-in instantaneous water heater, which single-circuit models cannot boast of. The advantage of a gas boiler with built-in storage tank is that there is no need to create an indirect heating boiler. In addition, the water is heated much faster than in single-circuit options and does not reduce the efficiency of the heating fluid.

A separate boiler can also be connected to double-circuit boilers to provide more hot water. Such equipment belongs to the layer-by-layer heating technique. You can also buy a double-circuit gas boiler with a built-in indirect heating boiler. Such devices are combined with the boiler, although separate devices can be purchased. Depending on what is best for you: ease of transportation and installation or compact placement, you can choose a separate or adjacent model.

If a single-circuit boiler is already installed, you can purchase a special layer-by-layer heating boiler for it, which is equipped with flow heater liquids. If you need to save space in your apartment, you can opt for a single-circuit boiler with a built-in indirect heating boiler.

Heater power

Depending on power gas burner the fluid flow rate in the instantaneous water heater varies. Also, the rate of water heating depends on design features heat exchanger. A feature of heating the liquid is its short contact with the heat exchanger, so in order to warm the coolant to the desired temperature, a lot of heat is needed. To increase the performance of the heating element, you need to increase the burner power and increase the gas flow.

In order for the water temperature in the shower to be 40 degrees, you will have to set the burner to produce a power of 20 kW, but if the burner is not designed for such power, then it is impossible to take a warm shower. For a bath, you also need to have a powerful burner, since the water must heat up quickly in large volumes for a normal set.

Most boilers have a power of about 20–30 kW, and 10 kW is enough to heat a house. Thus, the entire difference can be used to provide domestic hot water. For hot water boilers, modulating burners have been developed that cover a range from 30 to 100 percent of maximum power.

However, even the weakest boilers have excess power, which leads to frequent turning on and off of the burner. This process leads to rapid wear of equipment and increases fuel consumption. These problems make it necessary to purchase a more powerful boiler model to ensure more hot liquid is an unprofitable and unjustified solution.

That is why in dual-circuit models There is a boiler that holds hot water, which allows it to be released in large volumes while taking a shower or bath. Thus, layer-by-layer heating of water is optimal: it provides normal work equipment and does not cause burner wear.

In double-circuit models with layer-by-layer heating, water is heated using a plate radiator or tubular water heater. The presence of an additional heat exchanger is beneficial in condensing models, since it provides extra heat from combustion products. The liquid enters the boiler with layer-by-layer heating already heated, which allows you to quickly prepare hot liquid in the required volume.

Floor-standing double-circuit gas heating boilers with a boiler have a number of advantages.

The flow of hot water into the upper layers of the boiler allows you to take a shower 5 minutes after turning on the heat exchanger. In contrast, boilers with an indirect heating boiler provide longer heating of the liquid, since time is spent on convection warm water below the heat source.
The absence of a heat exchanger inside the storage tank allows you to collect more warm water for domestic needs. The performance of such boilers is 1.5 times higher than in models with indirect heating.

Operation of a gas boiler with a boiler - video

FAQ

Most often, people do not understand why there is also a boiler in the boiler. The fact is that the built-in model allows for comfortable use of warm water. This allows you to quickly ensure the availability of hot liquid when opening several water intake points, something that a conventional double-circuit boiler could never cope with.

Moreover, there are times when a small pressure of warm water is needed, which a boiler with instantaneous water heater, since it has a limited lower limit of pressure.

Floor-standing models with a built-in storage tank are similar to a refrigerator. They hold up to 100 liters of liquid, which is enough to provide warm water for an entire family.

The connection diagram for a double-circuit gas boiler with a boiler is practically no different from standard connection. An important difference is the need to connect not only to the heating system, but also to the water supply. It is necessary to cut into the system before the water exit points, but after the toilet. This will ensure the release of hot liquid from all water intake taps. It is best to consult with specialists to connect everything correctly.