Which gas boiler is better for heating a house of 200 sq. m

Device

A complete electric heating appliance consists of several important elements:

1. An electric boiler is the heart of the entire heating system, where the heating medium is heated.
2. Expansion tank. The heated water is distributed throughout the heating system. The expansion tank is a safety element that absorbs excess water, thereby preventing overloading the system.
3. The circulation pump provides the entire heating system of the house with a constant circulation of the coolant and the necessary ionization in the boiler body.
4. The system of pipes with thermoregulation sensors allows you to regulate the operation of the heating system with an electric boiler and save electricity consumption.
5. Radiators are a necessary element of the system for heating a private house.
6. Shut-off valves with valves provide a series connection of system elements.
7. Fuses are used to protect against surges in electricity. When it is turned off, the voltage decreases gradually, which protects the safety of the entire structure.

Gas boiler in the apartment

It is worth talking about this, service prices go up and sometimes there is simply nothing to pay rent, so many think and disconnect from the central heating, while saving significant amounts. Moreover, they pay off just as quickly.

Advice, most often gas boilers are installed in Khrushchev apartments, and there you know the areas are small and I told you that imported gas boilers have a high minimum capacity (from 60), so it is better to heat two apartments with one boiler. If one apartment is 45 sq. meters, then two are already 90 square meters, which means you can safely install a wall-mounted imported gas boiler.

This article is for informational purposes only. For each individual case, I recommend consulting with specialists (I will answer in the comments and the forum).

Features of gas heating

Gas heating is an environmentally friendly option for heating premises, since gas causes the least harm to the environment during combustion compared to other types of fuel. Such a system is characterized by the availability and inexpensive cost of equipment, easy and prompt installation, efficiency and simple maintenance.

The only drawback is the increased fire and explosion hazard. Therefore, only professional technicians should install gas equipment! In addition, it is necessary to regularly check the operation of the system by the employees of the gas service!

To organize gas heating, you need a gas boiler. Today there are many models and types of gas boilers.

It is important to choose the right equipment, because the durability, reliability and safety of the heating system depend on the quality. Let's look at what types of gas boilers exist, and which model is better to choose.

Review of popular boilers for heating a house of 100 m2

Gas floor boiler Siberia 17K

The budget line of boilers is manufactured in Russia in the city of Rostov-on-Don. Rostovgazoapparat is the largest domestic company in the gas equipment industry. She became famous for the release of boilers of the DON 16 series, RGA, which are distinguished by high reliability and indestructibility. Many residents of our country have DON and RGA boilers installed, and have been working properly for 30-40 years.

Heat output: 17.4 kW Heated area: 100-200 sq.m. Purpose: heating and hot water Heat exchanger material: steel Efficiency: 90% DHW at t = 35 ° C, 5.5 l / min

gas convection boiler Siberia_17K

Gas floor boiler RGA AOGVK 17.4

Also .

Power: 17.4 kW Heated area: up to 200 sq. M2 Purpose: heating and hot water Heat exchanger material: steel Efficiency: 90% DHW at t = 35 ° C, 5.5 l / min

Gas floor boiler RGA AOGVK 17.4

Wall mounted gas boiler BAXI MAIN 5 14 F

The most popular boiler manufacturer. Made in Italy. Sold in Russia since 2002. Average price 27,886.

Power: 14 kW Heated area: up to 140 sq. M2 Purpose: heating and hot water Heat exchanger material: copper Efficiency: 90.7% DHW at t = 35 ° C, 7.4 l / min

Wall mounted gas boiler BAXI MAIN 5 14 F

Protherm Cheetah 23 MOV

Wall-mounted boilers from Protherm have gained popularity in our country due to the high quality of gas boilers and low prices. Produced in Slovakia. The average price for this boiler model is 32 723. A distinctive feature is 23 kW of power, and the productivity of hot water is 11 liters per minute.

Power: 23 kW Heated area: up to 200 sq. M2 Purpose: heating and hot water Heat exchanger material: copper Efficiency: 90.3% DHW at t = 35 ° C, 11 l / min

Protherm Cheetah 23 MOV

Baxi NUVOLA-3 Comfort 240 Fi

Italian quality. The main advantage of this model is the built-in boiler for 60 liters, this model is suitable for heating and for hot water supply for a large family. Average boiler price is 72350.

Power: 23 kW Heated area: up to 240 sq. M2 Purpose: heating and hot water Heat exchanger material: copper Efficiency: 92.9% Built-in boiler: 60 liters of hot water at t = 35 ° C, 14 l / min

Baxi NUVOLA-3 Comfort 240 Fi

Is it worth buying too powerful a boiler

Modern heating equipment is equipped with automatic systems that allow you to regulate the gas consumption. This is very convenient as it saves you unnecessary costs. It may seem that the exact calculation of the power of the heating boiler is not so important, because you can just buy a boiler with high power ratings. But it’s not that simple.

The correct selection of heating equipment will extend its service life

Unreasonable excess of the thermal power of the equipment can lead to:

• increasing the cost of purchasing system elements;
• decrease in the efficiency of the boiler;
• malfunctions of automatic equipment;
• rapid wear of components;
• formation of condensation in the chimney, etc.

Thus, you need to try to "get" exactly the power that suits your home.

A curious case of choosing a gas boiler

The task is to choose a gas heating unit for your country house, a natural gas pipeline is being supplied or has already been installed, do not listen to the gas workers. I don’t know how, but gas services just convincingly urge to purchase boilers of a certain manufacturer, very often people come and demand a specific boiler. On the one hand, what the gas workers do well, they give recommendations to the boilers already familiar to them. But some simply advertise a certain manufacturer and quite possibly receive a bribe for it. Moreover, they have convincing words, if you choose a product from another manufacturer, we do not service. Choose and buy good quality gas boilers, ask your friends, ask, ask the sellers and they will definitely pick up an excellent boiler for a country house, summer cottage.

Features of using electric boilers in a home heating system

The disadvantages of electric heating are as follows:

• boilers do not have sufficient power reserves to heat large private houses;
• for uninterrupted operation you need a constant source of electricity;
• new wiring is needed to allow the installed electrical equipment to be used at full capacity for heating.

The advantages of using electric boilers are presented by the following list:

1. a standard electric heating boiler is easy to install and connect to the circuit;
2. installation does not require permits from utilities;
3. the presence of a chimney is not a critical requirement;
4. silent and waste-free operation of the device;
5. the possibility of connecting parallel circuits (hot water supply system, underfloor heating, etc.).

What does it offer you?

• Czech boilers for heating private, country houses. This is the Thermona brand, which is recognized as a “folk” one. The equipment requires little fuel, at the same time it is very powerful, suitable for buildings with an area of ​​70 and over 200 square meters. By combining these devices, you can even build a boiler room for an entire village or industrial building!
• Of course, engineers who will advise and do all the calculations taking into account the footage, number of storeys, materials that were used in the construction. They will help you save money on your purchase, because they will select exactly the equipment that you need specifically!
• Installation. We have a team of professionals who will absolutely correctly install a boiler for heating a country house or summer cottage and water heating. Our team is trained and certified, including by the fire department.
• We sell a large number of types of equipment for space heating and hot water supply. It is used in private, suburban buildings, and in the complex it is capable of supplying heat to an entire village and industrial facilities. There are devices that provide both heating and water heating at the same time, there are those that provide for the connection of a boiler for periodic heating of water. Moreover, the variety is not only structural. It also applies to types of fuel. One equipment requires gas for operation, the other - electricity, and there are condensing boilers. They save up to 20% fuel!
• Our equipment is imported from the Czech Republic. We trade in Czech technology. This equipment is recognized as "popular" in Europe. It is economical, inexpensive, at the same time very diverse in functions and characteristics, models and types, reliable, fail-safe and the most important property - it is safe!
• Our prices are low. Because we sell directly from the manufacturer, we get a decent discount from him, so the cost is almost like in Europe! In other words, we are the official representatives of the Czech plant in St. Petersburg, dealers.

So, we offer you to buy good boilers for home heating at prices almost like in Europe, imported, which have won respect in many countries. This is Thermona brand from the Czech Therm plant. In addition, we offer professional engineering service, and not a simple consultation of a manager without education. This is because we only deal with equipment for heating, water heating and for the arrangement of boiler rooms. "Termona-Rus" is a highly specialized enterprise where they know everything about their business - every little thing thoroughly!

You get:

1. Reliability;
2. Security;
3. Fault tolerance;
4. Saving money;
5. Professional engineering calculations;
6. Professional installation;
7. Imported equipment with a well-known name in Europe!

You will always have warm, cozy, comfortable, you will always have heating, even in summer - on cold days, you will always have hot water to wash and do all the household chores, while you do not need to closely monitor the boiler for heating private house, because Thermona equipment is fireproof! This is confirmed by numerous tests, certificates and the experience of millions of Europeans over the decades!

What values ​​are used in the calculations

The simplest calculation of the boiler power by area looks like this: you need to take 1 kW of power for every 10 sq. m. However, it is worth considering that these standards were drawn up during the Soviet Union. They do not take into account modern building technologies, in addition, they may turn out to be untenable in an area whose climate is noticeably different from the conditions of Moscow and the Moscow region.Such calculations may be suitable for a small building with an insulated attic, low ceilings, excellent thermal insulation, double glazed windows, etc. Alas, only a few buildings meet these requirements. To make a more detailed calculation of the boiler power, you need to take into account a number of factors, such as:

• climatic conditions in the region;
• dimensions of the dwelling;
• the degree of insulation of the house;
• possible heat loss of the building;
• the amount of heat required to heat the water.

In addition, in houses with forced ventilation, the calculation of the boiler for heating must take into account the amount of energy required to heat the air. As a rule, you need to use special software for calculations:

When calculating the capacity of a gas boiler, you should add about 20% more in case of unforeseen situations, such as a severe cold snap or a decrease in gas pressure in the system.

Wall mounted boilers

For an area of ​​40-100 sq. m.

For a small house or apartment with an area of ​​up to 100 m2, a wall-mounted boiler of the Finnish brand "Thermona" is suitable. Rather, until 2010, boilers were produced in Finland, where they are collected now, I did not find information. The power of gas boilers "Thermona" is from 10 to 30 kW, there is decent automation, there is a manufacturer's warranty and they are easy to maintain. Price from 13,000 - 35,000 rubles.

In double-circuit boilers "Thermona" the temperature is regulated, there is a mode switch: summer - only water heats up through only one circuit for supply to the taps and winter - when hot water is supplied to both taps and batteries. A display is installed (and in the cheapest models a diode) to indicate errors. The automation of wall-mounted gas boilers is designed for the pressure drop of the main gas. In this case, the power of the boiler decreases, but it performs its function.

By the way, I have 48 sq. m. there is a boiler of this brand. For 7 years there were no breakdowns (pah-pah-pah). Twice I called a service specialist for cleaning and profiling for 1,700 rubles.

How to choose the right gas boiler

To choose the right gas boiler, the following criteria are taken into account:

• Appointment. The boiler is needed only for heating the room or also for supplying hot water;
• Installation method. Floor standing boilers are used for rooms up to 200 square meters and are hung inside the house. Wall-mounted models take up more space and are used to heat spacious cottages. Such products require a separate boiler room;
• Manufacturing material. Wall-mounted boilers are made of copper, floor-standing ones are made of steel and cast iron. The latest more durable and reliable materials;
• The presence of a chimney. Please note that strict requirements are imposed on the chimney device. If you do not plan to make a full-fledged chimney, it is better to choose models with a closed chamber.

For country houses of permanent residence, experts recommend choosing floor-standing gas boilers. For a small country house, bathhouse or garage - wall equipment. Next, let's take a closer look at the best brands of wall and floor boilers. An overview will help you choose the equipment that is best for your home.

Reserve for severe frosts

When thinking about which gas boiler to choose for heating a house of 200 square meters, do not forget about the climatic features of your area.

How cold is the weather in winter? How strong are the winds in winter?

It is surprising, but the heat loss of your house in -10C with the wind may turn out to be more than in calm weather and -20C.

How many kilowatts to reserve "just in case" - counting on extremely low temperatures and strong winds? It depends on the specifics of your place of residence.

The standard "reserve" is approximately 20 percent of the required minimum heat generator capacity. If our minimum power is 20 kW, then the reserve will be 4 kW.

So, we end up with a minimum required power of 20 kW, a reserve for hot water supply of 3 or 6 kW (depending on the hot water supply scheme) and a reserve "for cold" of 4 kW.The final power is around 27-29 kW.

Connecting the electric boiler to the heating system of the circuit

The presence of an electric boiler alone is not enough to keep the house warm. It is also necessary to correctly connect it to the heating system. A properly executed piping scheme will also save on the use of equipment for controlling the temperature of the water in the heating system, preventing it from overheating. In addition, the piping of the electric boiler increases the efficiency of its operation.

The piping of an electric heating boiler has two circuits - small and large. First, the heated coolant passes along a small circuit of the piping, and then it is included in the large one, from where it is distributed over the radiators.

The strapping scheme includes:

1. circulation pump for pumping chilled water back to the water heater;
2. pressure gauge - connected to control the pressure in the heating system;
3. radiators;
4. pipes of different diameters;
5. balancing crane;
6. control valve;
7. auxiliary elements (adapters, tees; safety, air, reverse type valves; fastening couplings, bolts, nuts).

Of the tools, wrenches and a welding machine are required.

Heating a private house with an electric boiler can be carried out according to 4 main connection schemes:

with natural circulation, which is used as an emergency option in case of a power outage;

with forced circulation - used as the main connection diagram;

using primary-secondary rings. It is used in complex heating systems, including underfloor heating.

For heating multi-storey buildings, a cascade electric boiler connection scheme is used.

Watch a video about electric boilers:

https://youtube.com/watch?v=2M_qMJoszUs

The best floor-standing gas boilers for heating areas up to 120 sq. m.

To heat a house of about 120 sq. m, experts advise choosing a gas boiler with a maximum thermal power of 12.5-30 kW. Our rating includes the most economical devices with high efficiency.

Vaillant atmoVIT VK INT 164 / 1-5 16.9 kW single-circuit

Rating: 4.9

Experts in the field of heating call the German gas boiler Vaillant atmoVIT VK INT 164 / 1-5 the standard of reliability and durability. The 16.9 kW model is equipped with a built-in single-stage burner, the device can be used both in heating systems and for heating tap water. Experts consider the main advantage of the boiler to be a cast-iron heat exchanger, which is corrosion-resistant and has a long service life. Air intake is carried out from the room, which simplifies the chimney arrangement. For German workmanship and high efficiency (up to 92%), the device becomes the winner of our rating.

Users note the ease of operation of the gas boiler, the presence of security systems, adjustable legs, the ability to work on liquefied gas. The only drawback of the model is the high price.

Advantages

• cast iron heat exchanger;
• German quality;
• reliability;
• durability.

disadvantages

• high price.

BAXI SLIM 1.300 iN 29.7 kW single-circuit

Rating: 4.8

The Italian gas boiler BAXI SLIM 1.300 iN stands out from the competition with its high thermal power (29.7 kW). In this indicator, he wins even the winner of the rating. But the efficiency of the model is slightly lower (90%), which determined the final place on the podium. The primary heat exchanger is made of cast iron; the manufacturer has provided a special connector for external control. Among the minuses, experts call the large weight of the device (126 kg) and the high consumption of natural gas (3.49 cubic meters per hour). To connect a single-circuit boiler, a 220 V socket is required.

Domestic homeowners speak flatteringly about the work of the Italian boiler, its stylish appearance, and ease of control. Among the shortcomings, they note a high gas consumption and a high price.

Dignity

• high power;
• cast iron heat exchanger;
• electronic control;
• high-quality assembly.

disadvantages

• high gas consumption;
• high price.

KITURAMI STSG 13 GAS

Rating: 4.7

The floor-standing gas boiler KITURAMI STSG 13 GAS from South Korea has a high level of safety and comfort. This two-circuit model represents the best value for money for heating a house with an area of ​​about 120 sq. m. The manufacturer has made stainless steel heat exchangers, which are welded using a patented technology. The maximum temperature in the heating line reaches 85 ° С, water for domestic needs is heated up to 80 ° С. The device is electronically controlled; the remote thermostat can be installed in any room in the house. The model deservedly ranks third in our rating.

Users love the modern features of the gas boiler. This is an extended self-test, a delayed start. The advantages include the lightness of the boiler and the stylish design. Of the shortcomings, noise is noted.

Dignity

• high power;
• electronic control;
• many functions;
• acceptable price.

disadvantages

• noisiness.

Protherm Wolf 12 KSO 12.5 kW single-circuit

Rating: 4.6

The Slovakian floor-standing boiler Protherm Volk 12 KSO has a good reputation among Russian homeowners. This 12.5 kW single-circuit model has the highest efficiency in our rating (92.5%) and the lowest cost. The device is simply irreplaceable in those regions where power outages often occur, since it only needs gas to operate. Experts believe that the manufacturer has managed to create a reliable budget boiler that will create comfort in a house with an area of ​​up to 120 sq. m. The model stopped one step away from the top three in the rating due to the lowest maximum temperature of the coolant (80 ° C).

Most users are satisfied with the simplicity of connecting the boiler, low cost, and reliability. The disadvantages include mechanical control and a steel heat exchanger.

Dignity

• high efficiency;
• easy installation;
• low price;
• reliability.

disadvantages

• mechanical control;
• steel heat exchanger.

Lemax Premium-12.5B 12.5 kW double-circuit

Rating: 4.5

The Russian double-circuit floor-standing boiler Lemax Premium-12.5B looks worthy against the background of imported competitors. First of all, the manufacturer made the device available to the general public. The second advantage of the model, according to experts, is its energy independence. With a power of 12.5 kW and an efficiency of 90%, the unit is able to heat a house with an area of ​​up to 120 sq. m. Among the advantages of the Russian development, users point to the low consumption of natural gas (1.5 cubic meters per hour). This was achieved thanks to the installation of components from such well-known European companies as SIT and Polidoro. The model closes our rating of low-power gas boilers.

Of course, in terms of comfort and modern options, the device is inferior to the leaders in the rating. It has a mechanical control and a steel heat exchanger.

Dignity

• energy independence;
• affordable price;
• profitability;
• ease of use.

disadvantages

• mechanical control;
• steel heat exchanger.

A firm with a narrow specialization is the best choice for the buyer

Choosing a gas boiler for heating a private house is not a trivial task. With an independent choice, it is easy to make a mistake both with the calculation of power and efficiency, and with the determination of the correct type of equipment. It would seem, buy a wall-mounted double-circuit gas heating boiler for a house in a village for individual residential construction, and there is 90% that there is gas, just calculate the power, and that's it. But do you really need a wall-mounted heat source? Probably, your living space will allow you to limit yourself to floor space. This means you will save a little money on the price difference.

Do you really need to buy a dual circuit model? Maybe you have a hot water supply, in other words, a hot water supply system, and it is enough to get just a boiler in case of a temporary shutdown of hot water.Is the spent fuel removal system suitable? Maybe you need a different design? Have you taken into account the thermal insulation of the house and the material from which it is built, as well as the applied construction technologies? It is likely that the power of the device needs less or more.

Competent engineer consultation and technical calculations

In a word, a consultation will not hurt you. And in a store that has everything - from a razor to a flat-panel TV of the latest model, you will not get competent advice from an engineer, and also you will not get the correct installation. You will order it separately. Therefore, the best option is to contact a company that deals only with heating systems, water heating and equipment for boiler rooms. In such companies, there is always an engineer who will ask the right questions and make the correct calculation, including building a heating circuit diagram - a system of pipes and radiators through which heat will flow into the rooms. He will be able to determine whether you need a boiler for a boiler, which is called an indirect one, or whether an independent boiler is better suited, how many liters to take and what it should be in terms of energy consumption. An ordinary manager-consultant will be useless here.

Professional installation

When buying a gas boiler for heating a country house, as well as a solid fuel, electric or liquid fuel, you will need installation. Multi-brand stores with a bunch of mismatched products will not provide you with it up to the mark. This requires the work of professionals. This is the equipment of increased danger if installed and used incorrectly - the installation must be carried out correctly.

It is the calculation of the required characteristics and installation that are the privileges of highly specialized firms. One of them is us, Termona-Rus, dealers of the Thermona plant from the Czech Republic in St. Petersburg, official representatives of the company. And we only sell heating equipment.

We have not only equipment, but also the entire accompanying service: from consulting a professional engineer with a higher education, who is able to make correct calculations and build schemes, to delivery and installation in accordance with all instructions. In addition, we are not chasing high profits and we recommend for our clients the equipment that is most optimal for their home. We do not seek to sell at a higher price. So your gas boiler for heating a country house will be ideal in terms of price and performance.