Gas boiler with a boiler, frequently asked questions, reviews. Floor-standing gas boiler with a boiler - why is this an option Double-circuit gas boilers with a boiler

People who do not have enough space in an 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 the family with hot bath and household liquids, care should be taken to have 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 to connect a boiler

A boiler for a gas boiler is a storage tank, inside of which a heat exchanger is placed. This model, in fact, is a double-circuit, as it has a connection for both the heating system and the hot water supply.

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

A separate boiler can also be connected to double-circuit boilers to provide more hot water. Such equipment belongs to the technique of layer-by-layer heating. 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 transport and installation or compact placement - you can choose a separate or adjacent model.

If a single-circuit boiler is already installed, a special layered heating boiler can be purchased for it, which is equipped with a flow-through liquid heater. If you need to save space in the apartment, you can opt for a single-circuit boiler with a built-in indirect heating boiler.

Heater power

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

In order for the water temperature in the shower to be 40 degrees, you will have to adjust the burner to a generated power of 20 kW, but if the burner is not designed for such power, then it is impossible to take a warm shower. The bath also needs a powerful burner, as the water must be heated quickly in large volumes for a normal set.

Most boilers have a capacity of about 20–30 kW, and 10 kW is enough to heat a house. Thus, all the difference can be used to provide domestic hot water. Modulating burners have been developed for boilers with water heating, which cover the range from 30 to 100 percent of the maximum power.

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

That is why in dual-circuit models a boiler is provided that contains hot water, which allows it to be given in large volume while taking a shower or bath. Thus, layer-by-layer heating of water is optimal: it ensures the normal operation of the equipment and does not lead to burner wear.

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

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

1. 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 the convection of warm water from below the heat source.
2. 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.

Work of a gas boiler with a boiler - video

Frequently asked Questions

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

Moreover, there are cases when a small pressure of warm water is needed, which a boiler with an instantaneous water heater is not capable of, since the lower pressure limit is limited in it.

Floor models with a built-in storage tank look like a refrigerator. They hold up to 100 liters of liquid, which is quite enough to provide warm water to the whole family.

The connection diagram of a double-circuit gas boiler with a boiler practically does not differ from the 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 crash into the system before the water exit points, but after the toilet bowl. This will ensure that hot liquid exits from all water intake taps. It is best to consult with the masters to connect everything correctly.

Every day there are more consumers who want to organize an autonomous heating system. The cash costs that were when buying heating equipment and installing it will soon pay off in energy savings and the ability to adjust the power of the system. The best system for houses and apartments is the option with a boiler.

The purchase of a gas boiler with a boiler will be the best solution when using several points of water analysis, it will provide a sufficient number of advantages.

3 main benefits:

• A positive and significant advantage is the heating of water at night, when the water pressure in the water supply is weak;
• To start work, a separate connection to the water supply and heating system is not required, but it is enough just to throw water, gas and electricity to the boiler;
• All options for gas-type boilers are compact, since all the constituent elements of the boiler are assembled in one housing.

All these indicators are possessed by the Vaillant and Nova boiler water heater. They are the most popular brands in the boiler market.

How the boiler and double-circuit boiler are connected

The boiler for a gas boiler is presented in the form of a storage tank, in the middle of which there is a heat exchanger.

This model is inherently double-circuit, as it has the ability to connect to heating and hot water systems.

The built-in flow type heater is a double-circuit model.

You will learn about how double-circuit boilers are arranged, the principle of their operation, as well as how to choose, from our article:.

You can consider connecting a double-circuit boiler to a separate boiler. Such an installation will refer to equipment with a layered type of heating. In addition, at specialized points you can see boilers, both double-circuit and with layer-by-layer heating, they are combined with a gas boiler and can be either a complete set or separate.

The choice will depend on which option is best for you. It can be a separate or complete model, which is easy to transport and install. If you are the owner of a single-circuit boiler, then you can give preference to a boiler with layered heating, which includes a flow heater. In the event that you want to save space in the room, then purchase a single-circuit type gas installation with an indirect heating boiler.

What is the power of a wall-mounted double-circuit gas boiler with a boiler

The power of the gas burner in the boiler determines the rate of water supply to the instantaneous wall heater. The heating rate also depends on the design of the heat exchanger. The peculiarity of heating the liquid lies in its prolonged contact with the heat exchanger, and that is why in order to warm the coolant to the required temperature, a lot of heat is needed. And to increase the heating performance, it is necessary to increase the power of the gas burner in the boiler and increase the gas consumption.

If you need to heat water up to 40 degrees, you will need to adjust the burner. Its oriented power should be about 20 kW. If your boiler is not designed for such an indicator, then you will not be able to get a warm stream of water as a result, and you can forget about taking a warm bath or shower.

Most gas models have a power of 20 to 30 kW, it is important to decide for what purpose you will use it, because for the heating system an indicator of 10 kW will be enough. For boilers of this type, special modulated burners have been created.

It is very important to know that every gas boiler, even if it has low power, has a limit.

Exceeding the limit may cause the burner to turn off and on. Such a defect will very soon lead to a breakdown of the equipment or an increase in gas consumption. This problem leads to the fact that the purchase will be not only unjustified, but also unprofitable.

And it is for this reason that a boiler is built into the double-circuit boilers, which draws hot water into itself, and then gives it away in large quantities while taking a bath or shower. Thus, layer-by-layer heating of water is optimal, it enables the normal operation of the equipment and does not lead to burner breakdown.

The main features that a layered heating boiler has

In models with double-circuit layered heating, water enters already in a heated state, this allows the boiler to bring the water to the required temperature very quickly.

There are a number of advantages that these installations have:

1. Hot water enters the upper layer of the boiler after 5 minutes from the start of operation. Boilers with indirect heating last longer, as they need to spend time convection from the heat source.
2. Since there is no heat exchanger inside, the tank collects more water that can be used in everyday life. The performance of such a boiler is much higher than models with an indirect type of heating.

In most situations, people do not realize why a boiler is needed in a boiler. The answer is that such an organization is able to provide a more comfortable use of warm water. In addition, such a device guarantees the constant availability of hot water in the house, even when several water supply points are opened. Not a single contour boiler is able to cope with such a task. In addition, floor models are similar to a refrigerator and can hold up to 100 liters of liquid, which is enough to provide a large family with warm water. Floor standing models are compact and are a great alternative to larger units if you don't have much space in your home.

Overview of a gas boiler with a built-in boiler (video)

Based on the foregoing in the article, we can conclude that the connection scheme for a gas boiler with a built-in boiler is simple and practically does not differ from a standard connection. The most important thing is not to forget that it needs to be connected not only to heating, but also to the water supply. This system will be able to provide hot water from all water taps located in the house. But before you do the connection yourself, it is better to consult with experts.

Lack or a strictly limited amount of hot water - one of the main problems in a country house or country house.

The output can be an indirect heating boiler. It is not necessary to buy immediately for this purpose dual unit. Quite you can get by with single-circuit, but purchase an indirect heating boiler for it.

The latter gives out the collected hot water when the owner needs to wash dishes or take a bath. It would seem that the problem is solved, but there is another serious obstacle - limited space. In some cases, a special room must be allocated for such a unit.

Varieties of gas boilers with an indirect heating boiler

Gas appliances with an indirect heating boiler may differ according to the type of placement and shape of the tank.

According to the principle of placement: wall and floor

Can be:

• wall;
• floor.

Photo 1. A floor gas boiler in a package, with an indirect heating boiler, is installed in a special room.

They are installed using special brackets on a stable wall, which can withstand the weight of a water tank without loss. It is clear that flimsy drywall partitions are not suitable for this purpose. Typically, these devices are purchased one small family to your private home.

Second are capacious water heaters designed for a large number of people. Such devices will already require the arrangement of a special boiler room.

Usually they are purchased by enterprises and owners of large cottages and estates.

According to the shape of the tank

• Horizontal: very bulky, but they do not require pumps, they themselves maintain water in the right volume.
• Vertical: have a small capacity.

When choosing, you should take into account the number of people in the family, as well as features of the layout and the availability of free space in the country or in the house.

Photo 2. Gas floor boiler installed in a boiler room and a small vertical expansion tank.

Double-circuit storage device for heating

Boiler - a tank for heating and accumulating water of the desired temperature, which will be issued as needed by the owner. The simplest model: equipped four holes a tank with reinforced and insulated walls, inside of which there is a coil.

The work is carried out according to the following algorithm:

1. Supply of hot water from the heating system to the coil.
2. Return.
3. The flow of cold water directly into the tank.
4. The output of the heated liquid from the tank to the tap.

Additionally, the device includes:

• Circulation pump.
• Temperature sensor.
• Safety valve.
• Locking mechanism.
• Check valve.
• Anti-corrosion protection.

Reference! Some models provide circulation of heated water from the boiler between the walls of the outer and inner tanks. So, you have to wait until it heats up much less, but also such a device costs more.

The water heater is connected to the heating system right next to the boiler, parallel to the main wiring to the appliances. Own circuit allows you to keep the priority of heating in relation to the heating system. Reduces temperature fluctuation on storage heaters when the heater is turned on.

The temperature sensor detects a decrease in heat in the tank, followed by a command to the circulation pump in the circuit.

Water from the heating system is supplied to the coil, passes through it, giving off part of the energy to the still cold water already in the tank.

After it warms up to the right level, automatic switch off the pump. When the tap on the mixers is opened, the incoming cold water gradually displaces and dilutes the hot water. Then the cycle repeats.

The cold water inlet is equipped with a check valve that prevents it from draining when the pump is turned off. The pressure in the tank increases, since the mixers are not constantly used, and water cannot pour back. Safety valve does not allow pressure to reach a critical level, releasing a certain volume of liquid into the drain.

Important! The water heater is mounted on a flat surface next to the boiler. Suitable for hanging models log or brick wall on the same level with the boiler or slightly higher. Under the floor level part of the space on the floor or pre-place on it special ramp, on which the boiler is installed.

Advantages and disadvantages

To unconditional pluses boilers with heaters of indirect heating include saving on electricity.

No gas burner or power source required as with direct heating devices. The heating system will do everything by itself significantly reduces financial costs.

Other pluses:

• Performance: reservoir, capacity one hundred liters, gives approximately 400 l hot water in hour.
• Almost instantaneous supply of hot water.
• Ability to use multiple energy sources such as a geothermal system.
• Democratic price.
• Simplicity in the device.

• heating speed, even in the latest models, it will not be instantaneous.
• Bulky.

Attention! If the family is quite large, then one room will have to be given under the boiler room, pushing yourself. Small models will not solve the problem of washing.

When choosing a model, it is necessary to pay special attention to the following characteristics:

Operation features

• Pump filters need to be systematically checked and cleaned.
• Any model implies the correct setting of the thermostat, otherwise the boiler may overheat.

Now we will figure out how to choose a gas boiler with a built-in boiler and what is the difference between single-circuit and double-circuit ones. In the end, let's see who produces the best models in this segment.

There are various ways to establish and equip a hot water supply system in a house. One option is to install a gas boiler with a built-in boiler.

You can find out the price and buy heating equipment and related products from us. Write, call and come to one of the stores in your city. Delivery across all territory of the Russian Federation and the CIS countries.

Boiler with built-in boiler

Differences and advantages of single-circuit and double-circuit boilers

A single-circuit gas boiler is designed exclusively for heating the house - it does not have a built-in water heater that provides residents with hot water. If you connect a boiler to it, it will heat water for various domestic needs.

The mechanism of dual-circuit units is more complex and their price is higher.

The main advantage of a gas boiler with a built-in storage tank is that you do not have to buy and install additionally. In addition, the water in it heats up much faster than in single-circuit boilers.

For devices with two circuits, you can connect a separate boiler so that there is more hot water. If you already have a single-circuit boiler, then in addition to it you can buy a special one, which is equipped with a fluid flow heater.

If you are the owner of an apartment that is small in size and you need to save space, then a single-circuit boiler with a built-in boiler will be the best option.

To avoid all sorts of problems that may arise due to incorrect installation of equipment, installation should be carried out by specialists.

Currently, you can find the following models of double-circuit boilers:

• with a flowing water heat exchanger;
• with a built-in boiler for 40-60 l;
• with built-in boiler for 80-599 l.

The main characteristics of wall-mounted boilers with flowing water:

• they can simultaneously heat rooms with a total area of ​​​​up to 300 m²;
• they are compact, you can mount them in a niche in the wall;
• acceptable price;
• differ in simple installation;
• simple and convenient control.

Gas boiler device with built-in boiler

Advantages of gas heating boilers with a 40-60 l boiler:

• they can heat an area up to 300 m² and simultaneously supply water to 4 draw-off points at once;
• easy to manage;
• have a self-diagnosis system.

Units with a boiler for 80-500 liters are of three types. The first two include devices that include all the necessary parts, they are compact and allow you to fully control the system. The third type includes boilers for which you need to install additional equipment and buy other parts. As a result, in order to purchase all the missing elements, you will have to spend a lot of money.

As already noted, most users prefer single-circuit gas boilers with a separate boiler.

We note the main advantages of such devices:

1. The large internal section of the heat exchanger, due to which scale is formed much less.
2. Differ in reliability.
3. The mechanism and principle of operation of the device is simple.
4. Thermal energy is expended expediently, as a result of which the efficiency increases, and fuel is consumed more economically.
5. They are easy to service.
6. With a gas boiler and boiler, you are guaranteed to be provided with hot water at any time of the day.

Manufacturers

Today, the leading manufacturers of gas boilers with a built-in boiler are: Electrolux, Ariston, Viessmann, Baxi, De Dietrich, Vaillant, Wolf, Chaffoteaux, Biasi.

Thus, by purchasing a gas boiler with a built-in boiler, you can achieve significant cost savings without losing functionality and ease of use.