Which boiler is better for a private house: we compare all types of boilers with each other

Features of gas boilers

In order to conduct heating in a private house, residents very often use gas boilers. These units are characterized by ease of operation, which explains their high degree of popularity. Gas boilers are characterized by the presence of a burner, a gas valve, an automation system, a heat exchanger, an expansion tank, a draft sensor, temperature and pressure sensors. With the help of all these elements, heat is produced.

Rice. one

According to the installation method, gas boilers are wall-mounted and floor-mounted. Wall-mounted units are characterized by a fairly low weight, which provides a lot of convenience during their installation.They also have small dimensions, which allows them not to take up much space in the room. Floor boilers, although they have larger dimensions and weight than wall-mounted ones, they also have more power.

You can choose a gas boiler according to the installation method:

• Wall;
• Floor.

If there is a small amount of free space in the room, then you can choose a wall-mounted boiler, and if you need a good boiler output and at the same time you have a lot of space in the room, then floor heating equipment can be preferred. You can also choose a boiler for a house that runs on gas, according to the principle of their structure.

Gas boilers are divided into devices that have an atmospheric burner, and equipment that is characterized by the presence of a blast burner. Devices with an atmospheric burner have an open combustion chamber, and the air for mixing with the gas is taken directly from the room. In this case, the removal of combustion products is carried out in a natural way. Gas exhaustion in devices with a blast burner is carried out in a closed combustion chamber. This chamber has a built-in fan that creates forced draft.

Gas boilers may have steel or cast iron heat exchangers. Which type of heat exchanger to choose depends on the wishes and requirements of the user. The first type of boilers is characterized by good working out and high efficiency, while their service life is short. Boilers, which are characterized by the presence of a cast-iron heat exchanger, have a small capacity, but at the same time they can last for quite a long time.

Gas is exhausted using a gas boiler very quickly, which allows you to provide a private house with the required temperature as soon as possible.This equipment is characterized by a high level of efficiency, which is ensured by the high efficiency of the device, as well as a long service life and no need for a fuel supply.

Wall or floor gas boiler

According to the installation method, gas boilers are of two types:

• wall;
• floor.

The first type provides for fastening to the wall, therefore it has a small mass - no more than 80 kg. The power of such units can reach 35 kW (more powerful ones are rare), and the capacity of the built-in boiler does not exceed 40 liters. Wall models are a great solution for small private houses area of ​​about 100 m2 - 120 m2.

Although these devices have low power and little heating capabilities, they have their advantages:

• for a wall-mounted boiler, it is not necessary to allocate a special room - it is enough to place the device in the bathroom or in the kitchen;
• most wall-mounted units are equipped with a closed combustion chamber, while the chimney can be led out through a hole in the wall.

Floor-standing boilers are larger and heavier: the mass of such units can exceed 100 kg. Installation of such equipment implies the creation of a boiler room in compliance with the requirements of specialized SNiPs.

The rules regulate the important parameters of equipping the room: the height of the ceiling, the dimensions of the podium for boiler equipment, and the air exchange rates. The combustion chamber of outdoor units is predominantly open. This means that a constant supply of air is required for normal operation. However, floor boilers have more power than wall-mounted ones.

Wall-mounted units have a weak spot - a heat exchanger. This part is often made of steel to reduce the cost of the boiler and reduce its weight.Condensation is formed on the walls of the heat exchanger, which has acidic properties, which leads to the destruction of the steel part. The cost of replacing the heat exchanger reaches 50% of the price of the boiler itself. Copper is more resistant to corrosion, so copper heat exchangers have a long service life, however, the price of copper elements is higher.

In the production of floor devices, there is no need to reduce weight, so heat exchangers for such units are often made of cast iron. The main advantages of this material are heat capacity and durability. The service life of cast iron reaches 50 years. However, such a heat exchanger has a drawback - fragility. In addition, sudden temperature fluctuations in the supply and return pipes have a negative effect on cast iron.

When choosing between a floor-standing and wall-mounted gas boiler, it must be borne in mind that wall-mounted units are often cheaper, since they are equipped with an expansion tank and a circulation pump. For outdoor equipment, these parts must be purchased separately, which leads to additional costs.

Wall-mounted gas boiler equipped with a tank and a circulation pump.

In some cases, the heating system with a single-circuit boiler is filled not with water, but with a special antifreeze. This liquid does not lead to corrosion of metal parts and allows you to increase the life of the boiler and pipeline. Unlike water, antifreeze does not freeze at low temperatures, so in winter heating system with antifreeze does not fail (and water can freeze and damage pipes).

Antifreeze can only be used in floor standing boilers.It is not suitable for wall models, as it can lead to deformation, leakage and a local environmental disaster. This fact must be taken into account when choosing a gas boiler for periodical winter operation, for example, in country houses.

The best double-circuit gas boilers

Double-circuit boilers simultaneously heat water for both the heating system and the hot water supply. In this section, we will look at the best units without a built-in boiler.

Haier Aquila

4.9

★★★★★
editorial score

89%
buyers recommend this product

A series of wall-mounted double-circuit boilers includes 4 models of boilers with a capacity of 14, 18, 24 and 28 kW. In central Russia, this is enough to heat an area of ​​100-200 square meters. The burner and heat exchanger here are made of stainless steel and are not afraid of corrosion. The tube of the second circuit is copper so that the running water has time to heat up.

The control in all Haier models is electronic: an LCD display is placed on the body, which simplifies communication with the boiler automation. It is possible to connect a remote room regulator - with it, the unit will be able to automatically adjust the burner power to maintain the set temperature. The manufacturer did not forget about the full range of protections: from overheating, freezing, extinguished flame, reverse thrust.

Advantages:

• Small dimensions 750x403x320 mm;
• Daily and weekly programmer of the operating mode;
• Work on the external temperature sensor;
• Possibility of switching to liquefied gas;
• Built-in pump with electronic control and protection against dry start;
• Room sensor already included;
• Heat carrier heating up to +90 °С.

Flaws:

Non-Russian menu.

Well-made and attractive in appearance, the boiler will perfectly fit into a city apartment.With it, it will not only become warm, but it will also be possible to solve the problem of hot water.

Baxi LUNA-3 Comfort 310Fi

4.8

★★★★★
editorial score

88%
buyers recommend this product

See review

The main highlight of this model is a removable control panel, made in a separate case. You can leave it on the boiler, or fix it in any convenient place. The panel has another secret - a built-in temperature sensor. Thanks to him, the boiler can automatically adjust the burner power within 10-31 kW, focusing on the specified parameters. You can also set the water temperature in the second circuit - from 35 to 65 degrees.

Advantages:

• Convenient control from the remote panel;
• Rapid heating of the heating system (relevant for the northern regions);
• Automatic restart in case of network interruptions;
• The built-in pump pumps the coolant up to the 3rd floor;
• A good efficiency indicator is 93%.

Flaws:

No hot water circulation in the secondary circuit.

Baxi LUNA-3 is a premium class in everything: from the appearance of the boiler to its equipment and safety level.

The choice of coolant

Usually two options are used:

• water. Experts recommend pouring distilled water if the volume of the system allows it. This method avoids the formation of lime deposits, but it will not protect against freezing pipes in winter;
• ethylene glycol (antifreeze). It is a liquid that does not freeze when circulation stops. Contains a set of anti-corrosion additives, does not form scale, does not have a destructive effect on polymers, rubber, plastic.

For systems that need to be drained frequently, water is the best and most economical choice. The use of antifreeze is recommended for heating circuits operating in difficult conditions.

How to choose a boiler for your home

When choosing a heating boiler, several factors must be taken into account at once. The first is which of the types of fuel in your area is the most affordable. This refers not only to the price, but also the availability of this type of fuel in warehouses or the possibility of its production / purchase without any problems.

The second thing you need to pay attention to is the possibility of autonomous work. If someone is constantly in the house, this item can be omitted

But if everyone is at work or school during the working week, then it is better if the boiler for heating a private house can work for a long time without human intervention.

The third factor is ease of use and the need for maintenance. Not everyone and not always wants to regularly visit the heating boiler. In this case, it is better to take the most automated version. Yes, they are more expensive, but maintenance is minimal. As for maintenance - some types of fuel require regular cleaning - combustion chambers or burners. If this aspect does not please you, you should choose a boiler that needs minimal maintenance. By the way, these are units that run on gas and electricity.

The main nuances of choosing a gas boiler

The absence or constant interruptions of centralized heating and hot water supply force the owners of cottages and city apartments to create their own autonomous systems.

Their main element is a boiler, which, by burning fuel, heats the coolant for the heating system and water for domestic needs.

The choice in favor of gas equipment is due to the cost-effectiveness of using gas as a fuel. All other options for combustible fuel are more expensive or give less heat at times.

Plus, modern heaters of this type do not require constant supervision. I connected the unit to the main pipe or cylinder, and it works smoothly as long as there is something to burn.

The use of natural gas is the optimal solution for heating a private house in terms of fuel costs and operating costs.

However, in order for the gas boiler to function properly and in optimal mode, it is necessary to choose it correctly when buying and regularly service it after connection.

There are many different in functionality and special modules within the models of this equipment. The purchase of a gas heating unit should be approached thoughtfully.

There are many criteria for choosing a gas boiler, but the main ones are:

1. The power output by the device.
2. Layout solution (number of circuits, body type and heat exchanger material).
3. Place for installation.
4. Availability of automation for safe operation.

All these questions are closely related. The lack of space for a large unit or the desire to mount a device with an aesthetic appearance in the kitchen forces you to choose a wall-mounted model of less power than the floor version. And the need to heat hot water for the washbasin and shower makes you look for a boiler with two circuits.

When choosing a heater, you should remember about the need to repair it, if there is no workshop for servicing the selected model nearby, then you should look for another option

Liquid fuel

The least common are heating boilers for a private house on liquid fuel. Too many disadvantages of this type of heating:

• Fuel is expensive.
• It must be stored somewhere, and this is a large container that must be installed somewhere not very far from home so that fuel can be supplied to the boiler.
• For normal operation of the heating, it is necessary to heat the storage tank, as at low temperatures the heating oil thickens and clogs the burner.

• During operation, the burner makes noise and smells, so such equipment requires either a separate boiler room or an extension, but with good sound insulation and ventilation.

In general, it makes sense to install a liquid fuel boiler for heating a private house if you have a free (or almost) source of fuel. In all other cases, it is better to use other heating equipment.

The most popular manufacturers and their brief description

The leading manufacturers of floor single-circuit boilers are European companies, although domestic designs are optimal for Russian conditions.

The most famous companies are:

• Viessmann. German company, one of the most famous and reliable companies producing heat engineering products;
• Protherm. A Slovak company producing a wide range of heating boilers. All series bear the names of animals of different species;
• Buderus. "Daughter" of the world famous concern Bosh, which fully characterizes the quality and reliability of products;
• Vaillant. Another German company whose boilers are considered the highest quality and most reliable;
• Lemax. Russian manufacturer of non-volatile floor gas boilers. When developing the project, all the features of working in difficult conditions were taken into account;
• Navien. Korean boilers, successfully combining high quality and affordable prices.

You can continue the list of manufacturers for a very long time.All current firms care about the quality and reliability of their products, trying to outperform competitors and cover the maximum number of users.

How much does a boiler cost for heating a private house

Below is the cost of the most popular heating boilers for a private house:

1. Gas - Protherm Cheetah 23 MOV: N=9…23 kW, efficiency 90%, equipped with two circuits and an open chamber, attached to the wall. 32.7 ... 39.1 thousand rubles.

2. Gas - Vaillant ecoVIT VKK INT 366: N=11…34 kW, efficiency 109%, equipped with one circuit and an open chamber, installed on the floor. 140.8 ... 186.4 thousand rubles.

3. Electric - Protherm Skat 12 KR 13: N=12 kW, efficiency 99%, equipped with one circuit, connected to a 3-phase network, mounted on a wall. 31.7 ... 41.9 thousand rubles.

4. Solid fuel (wood, briquette) Stropuva S40: N=40 kW; Efficiency 85%; equipped with an open chamber and one circuit, installed on the floor. 96.1 ... 122.0 thousand rubles.

5. Liquid fuel (diesel) - Buderus Logano G125 SE-25: N = 25 kW, efficiency 96%, equipped with one circuit and an open chamber, installed on the floor. 102.4 ... 139.3 thousand rubles.

6. Combined (gas-diesel) - De Dietrich GT 123: N=21 kW; Efficiency 96%, equipped with an open chamber and one circuit, installed on the floor. 51.5 ... 109.0 thousand rubles.

Prices are valid for Moscow and the region as of August 2017.

Double-circuit or single-circuit boilers?

This applies more to wall models. The recommendation here is simple. If you have a small house with one bathroom and a kitchen, then take a double-circuit boiler and use hot water from it.

If you have several bathrooms, then choose a single-circuit gas boiler and combine it with an indirect heating boiler.

The main problem of double-circuit boilers is their low productivity. At the same time, such a device can provide one point of hot water. If there are several of them, problems may arise. For example, with a suddenly cold shower. Everyone passed, everyone knows and does not want to repeat. Therefore, it is better to put a boiler.

Advantages and disadvantages

The advantages of floor single-circuit boilers include:

• simplicity, the absence of unnecessary components and parts;
• reliability, stability of work;
• high power, the ability to heat large areas;
• the presence of powerful and efficient heat exchangers with a high heat transfer coefficient;
• the floor mounting method simplifies the installation and connection of the unit;
• management of single-loop models is simple and accessible to all users;
• there is a wide choice of designs, allowing to receive the most suitable type of a copper for the set conditions.

The disadvantages of floor single-circuit boilers are:

• lack of independent ability to supply hot water supply;
• the specifics of the work require the allocation of a special room - a boiler room equipped with window and door openings;
• atmospheric or non-volatile models are connected to the central common house chimney, which determines the place of their installation;
• increased power automatically means increased fuel consumption.

NOTE!
Most floor single-circuit boilers are used in private homes or public buildings, where it is possible to provide all the conditions for the normal operation of the unit.The use of these models in apartments is impractical, since the dimensions and specifics of floor-standing boilers in such conditions are redundant.

Main characteristics

To find out which gas boiler to choose for heating a house of 100 square meters, you should consider their main characteristics.

First of all, this is the way to install the equipment:

• floor versions of boilers;
• wall mounting option;
• parapet connection.

The mounted boiler is not the most powerful, but harmoniously fits into the interior

Then you should pay attention to the number of contours:

• single-circuit are used exclusively for heating the room;
• double-circuit are used for space heating and water heating.

It is important to pay attention to the type of burner:

• ordinary - oxygen enters the fire due to natural draft;
• inflatable - air is blown by a fan;
• combined.

There are several ways to adjust the boiler power per 100 sq.m:

1. Single stage. After reaching the set temperature mode, it works on the fuse.
2. Two-stage. The set temperature condition is reached, after that it switches to 40% of the power.
3. Smooth two-stage. It works like the previous version, but with a smooth change of modes.
4. Modulated - works in several modes.

Camera type considered:

• open option. For its operation, air comes directly from the room where the device is located, this process occurs naturally;
• closed option. With the help of a special pipe, air is injected from the outside of the room.

Starting a gas boiler

The type of traction is as follows:

• ordinary - due to convection;
• discharge - with the help of fans.

The burners are ignited as follows:

• electric ignition - powered from the network;
• piezo ignition - a spark is generated by a piezoelectric element;
• kindling with matches.

And be sure to take into account the material that was used to manufacture the heat exchanger:

• steel;
• cast iron;
• copper.

Video description

How to choose a boiler to provide heating in a private house, see the following video:

Overview of some types of heating devices

To understand which boiler to choose for heating a house of 100 square meters, you should consider some options.

AOGV 11.6(M)

This is a domestic-made two-case apparatus, has a power of 11.6 kW, and is capable of heating water up to 2 l / min. Floor standing boiler. The price is within 17,000 rubles.

Scheme of operation of a classic gas boiler of traditional layout AOGV 11.6

Protherm Panther 12KTO

This model is produced in Slovakia. Designed for space heating only. It has a power of 11.6 kW, while consuming 1.4 m3 / hour of gas. Has a wall mounting option. Estimated within 35,000 rubles.

UYUT-10

Runs on solid fuel. With a power of 10 kW, the efficiency indicator is 72%. Single-circuit boiler, which is intended only for space heating. Uses 22 liters of water. The price tag is within 13,500 rubles.

"Bourgeois-K" STANDARD-10

It also runs on solid fuel, but with a power of 10 kW it has an efficiency of 85%, which is superior to the previous version. The water circuit requires 18 liters of water. The boiler is estimated at 40,000 rubles.

Solid fuel boiler Bourgeois

Bosch Tronic 5000H

Boiler running from the electrical network. For its full operation, a three-phase connection is required. With a boiler power of 13.86 kW, 14.1 kW must be used. The efficiency index reaches 99%. Such a boiler costs 43,000 rubles.

Kospel EKCO.L1z

Electric boiler with the need for a three-phase connection. With a power of 12 kW, it uses 12.5 kW of electricity. The efficiency of this boiler is 99%. The cost of this model is 25,000 rubles.

The choice of a boiler for a home depends on the personal preferences of the consumer and the availability of access to an energy resource. Based on the comparison of models and characteristics, we can conclude that the most gas boilers are an economical option. With their help, not only rooms are heated, but there is also the possibility of heating water for domestic consumption.

Conclusions and useful video on the topic

This video will help you understand the features of various types of gas boilers:

The video material is intended to deepen knowledge on the topic and help you make the right choice:

When making a choice between a double-circuit boiler and its single-circuit counterpart, you should not ask yourself which is better. Since all of the above equipment is modern, productive and durable, but, as mentioned above, is designed to solve different problems.

Therefore, it is so important to take into account personal needs and living conditions so that the equipment does not disappoint you.

And how many circuits does your gas boiler have? Share your impressions of using your heating equipment - tell us whether the selected boiler satisfies all your needs or for some reason you consider your choice to be wrong? Add a photo of your gas boiler, indicate its pros and cons found during operation.