Gas-fired boilers for heating private house: how to choose correctly

Qualitative autonomous engineering systems perform their functions in full without the expense and hassle in the process of exploitation. In the domestic climatic conditions it is especially important maintaining a comfortable temperature during the cold season. Successfully solve this task will help the modern gas-fired boilers for heating private houses. How to choose the appropriate equipment without errors described in this article. There is information about the installation work, especially new products, other useful information.

Gas boiler for heating and hot water supply of private homes: classification, application features

Attentive people will notice right away that solve identified in the header section of the problem may be with the use of different methodologies. If there are any furniture factory, offering cheap pressed wood waste, it makes sense to think about the purchase of a boiler on liquid fuel. In the presence of a large stream with a dam can be built dam hydro generator set. Cheap energy useful for connecting electric heaters. They are low cost, ease of installation and management.

This facility performs its functions completely free of charge. He does not need an external power source. Captivating simplicity of construction, the ability to manufacture many parts of their own hands. But that the use of "gratuitous" solar energy has been quite effective, you need a lot of sunny days in a year. And for this you need to move your home closer to the equator. Similarly, not difficult to find out defects of other alternative methods.

If you add up the actual conditions, energy prices, the cost of assembly operations and other important factors, the correct conclusion is not difficult to do. In most cases, a good a gas boiler for private houses - the best option. For this reason, it will continue to be considered by such equipment.

With this pattern can clarify the purpose of the individual structural elements of modern techniques in this category:

• For dispensing the air into the combustion zone are used the fan (4) with fine adjustment of the impeller rotational speed. This unit is very quiet, so does not create a concern when installing the equipment in a residential area.
• The particular shape of the burner (2) allows full use of gas energy. The flame is carried out in a continuous mode without user intervention.
• The heat exchanger (3) is made of high quality stainless steel. He keeps working and integrity for a long time even with very intensive use.
• built-in tank (1) with a flexible membrane extension compensates for liquid in the system during heating.
• At the bottom of the housing is mounted a heat exchanger of the second circuit, which is used as part of the hot water system.
• In modern control units (5) are widely used microprocessors, specialized software. Built-in self-diagnostics informs about the detected errors, prevents the emergence and development of emergencies.

How to choose a gas boiler for heating private houses according to individual criteria

Accurate data and calculation methods are shown below. But at a preliminary stage of preparation you can set some important parameters. They will help you choose the appropriate technical parameters and price gas boiler for heating private houses up to 100m2. If we take such an object as an example, you need a power of 10 kW for heating only.

To ensure the combustion process in the room should be sufficient supply of fresh air. If it is not, it is necessary to mount the corresponding system (natural or mechanical ventilation). This type of equipment is installed on the ground floor or basement. From this room on the current standards should be an additional output. In order not to hamper the routine inspection and maintenance techniques to provide easy access. Of course, it is useful good lighting.

Choosing a gas boiler for heating private houses combine with the definition of exhaust gas removal technology. Ventilation shaft not suitable for this. Establish separate vertical or horizontal (coaxial) chimney.

Note! The latter option is also suitable for urban apartments, because they do not imply a change design obschedomovyh utilities.

All modern boilers operate under electronic control, with automatic ignition of the fuel mixture. autonomous entities for the provision of continuous operation equip uninterruptible power supplies.

The different wall and floor boilers

The equipment installed in these categories differently. To ensure the stability of the most massive outdoor gas boilers for home heating erecting a special foundation. This equipment is designed for high performance. To accommodate quite often choose a separate utility room. It is easier to maintain the optimum temperature, meet regulatory rules. An additional advantage is a good sound insulation from living spaces. In such an embodiment it is not difficult to raise the level of fire safety.

Price floor of a bypass gas boiler for heating private houses complemented costs for the construction of the respective room. It should also consider the cost of the pipeline is laid, ventilation, Mains supply, lighting, chimney. The market offers a wide range you can find the necessary power equipment easily for compact and large object.

At equal power price wall bypass gas boiler for heating private houses will be higher compared to the one studied above. With smaller dimensions need to install the necessary components inside.

Attachments in this category are often mounted inside the cabinet furniture, which is associated with the need to maintain a safe temperature of external surfaces. Appropriate engineering tasks more difficult, so does the cost.

Differences between equipment with different number of working circuits

In the simplest embodiment, use one heat exchanger which heats water only in heating circuit. Operation is subject to automatic. When the temperature falls below a predetermined level the burner is ignited. Circulating carrier provides a built-in pump.

In this embodiment, the operation of the equipment is adjusted for reading temperature sensor. This helps to economically consume fuel resources. This complete primary function is to heat the water boiler.

Principles of operation of a bypass gas boiler is different, because it has an additional heat exchanger. It is used exclusively for the heating of water. Switching to this circuit is carried out three-way valve. The control signal is formed with the temperature sensor readings (for connecting the boiler). If enough performance flow system, registers water movement at the opening of the tap.

The use of a bypass gas boiler for heating private house allows you to split the fluid flow. This design permits the use of special freezing compositions in the heating system. However, better performance is difficult to obtain. For this reason, single-circuit analogues used to equip private houses boiler indirect heating using the scheme discussed above.

What combustor installed in gas boilers

In the classic version (open chamber) boiler technology uses air from the room where it is installed. When enough good ventilation, may feel the lack of oxygen. If there are defects in the system of removal of unburned gases, there is a threat to human health.

It should be noted that the negative influence reverse situation. Coming from the outside air, the cold - winter, hot - summer, degrades the overall economic performance. We have to spend more on heating and conditioning in the appropriate seasons.

For these reasons, a prudent owner prefers to install this equipment in a separate room. There's easier to create the optimum conditions. To comply with applicable standards and provide good efficiency ventilation should provide triple exchange of air per hour.

But necessary positive result can be obtained using a closed air circuit. He goes into the pot from the street through a special pipeline, composed of two parts. Inside the oxygen used in the combustion process. The resulting products are removed to the outside.

This solution is characterized by several advantages:

• If there are no particular restrictions on the building codes, you can quickly and relatively cheap to establish a horizontal discharge of combustion products.
• In this embodiment, the incoming air cools the tube wall, which prevents the high temperature effects on the structure of the building.
• Insulation combustion region from the accommodation increases the comfort level.
• Wall and floor gas boilers with closed combustion chamber shall perform their functions with a high KPD.Poetomu their use helps to save money during the operational period.

Note! The initial investment must be evaluated in the complex. Equipment open chamber cheaper. But we must add to it the cost of the cost of construction of the chimney.

Related article:

Quality and according to the rules established flues for gas boiler in a private house They are an important component of effective heating system. In this article we will talk about how to properly arrange the equipment based on established standards and requirements, it was not necessary to alter the chimney.

Since many common parts, it is convenient to study them together in these constructions:

1. smoke removal fan;
2. a temperature sensor for controlling the hot water supply system;
3. Burner (to extend the life of these products produce stainless steel);
4. device that controls the flame in a continuous mode;
5. electrodes ignition system;
6. magnetic transducer, preventing formation of scale;
7. a micro-turbine (with the help of recorded moving fluid in the pipeline);
8. blocker, which prevents the penetration of an excessive amount of cold air;
9. a pressure sensor (it is used to control the removal of the combustion products);
10. thermostat, Protects against excessive temperature rise;
11. a temperature sensor in the heating circuit;
12. an expansion tank with a flexible membrane (closed type);
13. sensor detecting the pressure variation in the heating system;
14. a circulation pump which is able to operate in different speed ranges;
15. a bypass pipeline route (bypass);
16. This kranispolzuyut for adding fluid to the system;
17. emergency valve (triggers automatically when the pressure greater than 3 bar);
18. temperature sensor.

Calculation of power gas boiler: correct account important nuances

The above proportion is suitable only for the exemplary determination of the desired value. Are strongly influenced by climatic conditions in the region. For southern regions apply reduction factors (0.7 to 0.9). In the north - added headroom up to 100% of the nominal value.

power to gas boiler 100 more precisely square. m is calculated taking into account additional factors:

• the desired temperature in a certain area;
• parameters ventilation system;
• ceiling heights;
• material and thickness of exterior walls;
• insulation characteristics window frames.

Note! In order not to get lost in the complex formulas with the calculation of heat loss, use specialized software.

A calculator for calculating the required power of the gas boiler

Installation of new equipment

Despite various temporary fluctuations in prices in the respective market segment, cost of energy has a significant impact on operating costs. To reduce costs, it is recommended the installation of modern equipment. Latest boilers can heat the house with a private performance. They are equipped with automatic systems that simplify the treatment, perform self-monitoring and diagnostic functions.

It must be remembered that the most rational is the complete replacement of obsolete equipment, pipelines, radiators. This will help bring the heat supply system parameters to meet the requirements of modern standards.

Proper installation of a gas boiler in a private home: to the room requirements, applicable standards

equipment project of this category should be agreed with the authorized organizations. Installation work better to entrust the organization of the profile, which has the necessary licenses. This approach will provide the reliable quality assurance and compliance with current legislation.

In any case, the following installation regulations must be observed gas boilers:

• This equipment must be equipped with sensors which record the change in pressure and temperature in the system.
• Gas is supplied only metal pipe.
• The corresponding track can not be routed through areas which are a fire hazard.
• In the power supply circuit protection device set that disable circuit when a threshold is exceeded by a temperature current. necessary to have ground loop.
• The diameter of the chimney must comply with a certain power.

Special requirements have to be placed:

• natural light of 0.15 sq. m. for every 5 sq. m. area;
• flows height of 2.5 cm or more;
• smooth wall finish plaster solution;
• doorway width - 80 cm;
• room area -. 4 m. and more.

Important! Here is just a part of the current regulations. When creating the project and connect it is necessary to take into account all restrictions in the sector, so as not to endanger the occupants of the house, not to pay the fines auditee.

Installation works: guide with commentary

Normal vertical and Coaxial chimney for a gas boiler set as the basic equipment, in accordance with applicable building codes.

The following description will help eliminate errors when installing the wall gas boiler with his hands:

Photo	Actions and comments
	Standard equipment, some manufacturers add a template. It is applied to the selected portion of the wall, make a mark fasteners.
	To create holes using power tools. Choose a drill corresponding to the materials of building structures.
	Special nozzle is useful for creating large holes for the chimney.
	With the use of set screws mounting bar.
	For accurate fixing of heavy wall unit needs an assistant.
	Threaded connections for connection of service lines are arranged on the bottom plane.
	Special focus should be when connecting gas line. To create a quality sealed connection is used a special gasket.
	Each valve has a color code, which prevents erroneous actions. Everyone - corresponds to a certain washer.
	When connecting pipes use hand tools. Precisely metered efforts, which should be sufficient but not excessive to maintain the integrity of the threaded connections.
	In this figure the following elements of the system are marked 1 - water; 2 - feedback network; 3 - gas reducer; 4 - natural gas pipeline; 5 - condensate drain line; 6/7 - supply of hot / cold water.
	Condensate line formed of a flexible corrugated tube, which is fixed a wide ring.
	This retractable filter with permanent magnet protects equipment from scum.
	This example uses the horizontal drawing system.
	The hole in the wall must be at a distance of 14 cm from the top cover to be able to establish such a coupling member (90 °). Seal the joints creates a wide flexible washer
	Pre-installed in the outlet opening a special adapter.
	Metal clamps fixed component parts of this site.
	Next, connect the control and monitoring unit.
	Power and other cables are introduced into the body through a special adapters. They provide a secure fit, but do not damage the protective shell.
	Remove the screw at the bottom.
	Then - free front mounting.
	Now, the panel can be tilted forward to make access to the inside.
	Remove the control panel cover.
	Wires fixed screw terminals based on placards. The power supply is connected to the fuse (3 A).
	Optional external control panel is connected to these terminals.
	This temperature sensor is connected inside the premises. After completion of all electrical connections panel assembly on a regular place in the reverse order.
	Normal pressure - 1.5 bar. But during commissioning it is increased to 2 bar.
	When filling the system with water and during future operation of the automatic air discharge is carried out automatically by the device.

Attention! Before switching on the equipment necessary to make sure that all connections are made in strict compliance with applicable regulations.

Most work operations modern gas boilers operate in automatic mode. When you install and configure for use the official manufacturer's instructions for specific models of equipment. The above algorithm is only an example.

Different connection schemes of gas boilers

When choosing the optimal variant of building engineering systems experienced experts consider the following options:

• type combustion chamber.
• The number of circuits in a boiler.
• View the circulation coolant (Forced / gravity).

Mounting of the gas boiler operates in a private home with the heating system of the type (open / closed). Also, are essential features of connected lines. Different temperatures, for example, must be maintained in kinds of radiators and the system underfloor heating.

Single-boilers frequently connected under the scheme with an additional boiler. It allows you to create an adequate supply of hot water to meet all needs in a private house, but it does not impair the parameters of the heating system. The following description explains a typical working embodiment of this algorithm:

• The supply line is set a three-way valve. It directs the fluid stream to the desired contour.
• When the hot water temperature falls below a set level - connects boiler.
• The heating circuit is heated, water is supplied only after the decision of the previous problem.

Note! The larger the volume of the boiler, the greater the influence exerted on the work of the heating system.

How to choose a voltage regulator for gas boilers: useful tips

These devices prevent changes in network parameters food that can disrupt normal operation of boilers. voltage fluctuations have a negative effect on the electronic components, which are installed in the current models of heating equipment. External stabilizer to prevent such impacts, it extends the life of the heating equipment.

Currently available are several types of such devices:

• Relay devices - perform their function with an accuracy of 4% to 9%, providing a voltage change when connected to a standard network ranging from 200Vdo 240V.
• electronic modification, Thyristors, are faster. They can provide high precision (1.5-2%), so the fluctuations in the supply network will be minor.
• Very high quality work models with electric drive. They slider moves in the transformer windings, therefore it is possible to perform the voltage correction with very high precision. Unfortunately, this operation takes a long time, so are not protected, corresponding to modern requirements.

The second variant (e) is preferred by many dedicated experts. To find out which is better voltage regulator for a gas boiler, it is necessary to look closely at this segment of the market. Here are the various models of domestic and foreign manufacturers. During the following information useful to the analysis:

• voltage indication in this case is not necessary, therefore, the corresponding function can be neglected.
• Enough high-quality products create a new manufacturers, so you should not disparage such proposals. You can check the views of experts, reviews of real users for accurate assessment.
• Power consumption of gas boilers is not great. As a rule, it is not more than 180-220 watts. Passport data must be multiplied by 5 to obtain the required power stabilizer based peak surge when connecting inductive loads (circulating motor pump).

Current Rating gas boilers floor type: features of different models of famous brands

In the study of these materials is necessary to consider not only the above information. Should pay attention to innovation, the special features of modern models of equipment, warranty and consumer opinion.

PROTHERM BEAR 40 TLO

VIESSMANN VITOGAS 100-FGS1D870

23.2-3-AOGV Comfort H

AOGV-11,6-3 ECONOMY

It should be noted that the mechanical control is nonvolatile. It works seamlessly with the surges, which should be blocked by connecting the latest models of boilers. However, in this case CPL below.

BUDERUS LOGANO G234 WS-38

BAXI SLIM 2300 Fi

VAILLANT ecoVIT VKK INT 366

It is not necessary surprising that in the table the efficiency exceeds 100%. It - condensing boiler. It differs from the above models of special design. In a further heat exchange unit shown in energy of the heated steam. This principle helps careful use of energy resources. Efficiency factor is given in terms of the conventional technologies, which are not able to provide a similar result.

Related article:

Heat pump for heating houses.Such a method of heating homes is organizing a myriad of controversy about the effectiveness and return on investment. Let's try to deal with it in a special publication.

How to choose a wall-mounted gas boilers: ranking of the best products of leading brands

The following models are suitable for installation inside furniture. Despite its small size, some of them are large enough to heat real estate.

WOLF CGG-1K-24

BAXI LUNA-3 COMFORT 240 Fi

Note! The high price of a bypass gas boiler for heating private house pays off during use, if the technique works with high efficiency. Well-equipped electronics to prevent emergencies.

NAVIEN DELUXE 24K

PROTHERM GEPARD 23 MOV

BOSCH GAZ 4000 WZWA 24-2 A

VAILLANT ecoTEC PLUS VUW INT IV 246