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Gas boilers for private houses - installation and maintenance of the main heating unit

Gas boilers for private homes

When a house is built, and it's time to goconducting communications, one of the most difficult issues is the choice of the boiler. As a general rule, as the main element of heated water heating system stands. And all kinds of oil radiators, electric underfloor heating systems, infrared heaters, wood and electric fireplaces are used for additional heating. The first step is to decide what kind of fuel you prefer, and then select the model of the unit. It should be noted that the most popular in recent years are gas boilers - For private homes is the best option.


  • The main types of fuel
  • Types of gas equipment
    • Separation at the place of installation
    • The differences on the basis of work
    • Install the pump on a gravity-fed heating system
    • Advanced condensing boilers
  • Separation of gas boilers in the category
    • Classification by purpose
    • According to the type of heat exchanger
    • By way of exhaust gas
  • Automation and Security
  • Installation and maintenance of gas boilers

The main types of fuel

Depending on the type of energy or burnedthe material is separated gas, electric, solid-fuel and liquid-fuel boilers. Many manufacturers also offer a fairly wide range of so-called combined boilers, which are switched from one fuel to another. So in areas where there is no central gas supply and electricity shortages often occur, it is very convenient to use boilers that can run on both electricity and solid fuel (coal, wood, briquettes).

Floor-standing gas boiler

Floor-standing gas boiler - the most demanded type of equipment, its popularity is justified capacity, the ability to maintain two circuits

Making the final selection is based on theconvenience and cost of operation of the heating equipment. The most economical is it gas boilers, and too much trouble, they do not deliver. Modern heaters are equipped with automatic control system, which ensures their smooth operation with little or no human intervention.

The undeniable advantages of gas heatingIt can be attributed to the absence of the need to make fuel reserves, and high efficiency (up to 95%), and relative safety. Furthermore, gas boiler often does not need a separate space - a boiler. And with enough attractive design unit easily fit into the interior of your kitchen.

Types of gas equipment

In order to choose the right gas boiler for private houses, You must first understand how they differ from one another.

Separation at the place of installation

There are floor and wall units. Wall boilers are usually equipped with a copper coil, which causes their light weight. It is because of the rapid burning of the copper heat exchanger for large loads such boilers have a power limit of 35 kW. Outdoor boilers are equipped with cast iron heat exchanger and are indispensable for heating large areas.

The differences on the basis of work

volatile boilers

This equipment is equipped with not only a torch andheat exchanger, and a circulation pump that pumps a constant pressure in the system. When properly installed, this boiler ensures that the coolant will reach all corners of the heating system, maintaining the set temperature. In addition, the pipe system installation for this boiler is much easier, as in this case there is no need to comply with a constant slope. Choosing a gas boiler for the house, remember that during a power outage, mains equipment does not work. So if in your area such troubles are not uncommon, please be diesel or petrol generator.

nonvolatile boilers

This is a rather outdated view of the gasequipment that requires a larger diameter in-house piping, compliance bias and installation of open expansion tank. However, when combined with a circulating pump and a few in-house to improve the system, installation of gas boilers this type can be the best option for the area, where they often cut off electricity supply.

Install the pump on a gravity-fed heating system

It makes it easy enough.

Installing the circulation pump

The circulation pump is inserted into a gravity heating circuit, if the system can not cope with the work and the temperature set at different points of the radiators is substantially different

  • In return, 20-30cm in front of the entrance to the boiler, it is necessary to build a bypass, on which the pump is installed.
  • Before the pump must be installed tight filter, which prevents from entering the pump mechanism of the solid particles and thus will prevent it from breakage.
  • On the return line between the input stroke and its output is set valve.
  • The pump is connected to the mains. When the pump is in operation, the valve on the main tube must be closed. If there is power outage, it is sufficient to open the valve and gravity circulation resumes.

Important! This method of switching is possible only on the pipeline, which was originally prepared for the installation of non-volatile boiler. That is, when all the slopes and pipe diameters. The system, designed for the installation of the pump, an independent circulation of coolant is impossible.

Advanced condensing boilers

This is a new generation of heatingequipment. In order to understand what is its main difference, you need a bit of work to understand the principles of a conventional gas boiler. The fact that, together with the combustion products through the flue of the steam output considerable, which leads to heat losses. Manufacturers are going to absolutely deliberately, in order to prevent condensation inside the boiler that very quickly can lead to corrosion of parts of the boiler and damage it.

Inside the condensing boiler

Condensing boiler sectional

Condensing gas boilers for the homeso constructed that the water vapor is cooled in a heat exchanger to a temperature at which condensation occurs. This occurs due to the interaction of water vapor with the return line. In this heated heat transfer fluid itself, and thus decreases heat loss.

The most advantageous to install such equipment in homes where the water is arranged a "warm floor", ie there is no radiator and heating is provided by a long pipeline laid under the floor.

Separation of gas boilers in the category

Classification by purpose

The most common question arises in the moment of choice,Installation of gas boiler is better to type - single-circuit or two-circuit. Single-circuit boiler is designed only for heating, but also a double-heat water for hot water supply. The answer to this question is quite simple: it all depends on the power of the boiler. If you are planning a large enough home heating, and thus set a powerful boiler, it is better to establish a separate single-circuit heating system and boiler. For the home area of ​​200m2 can be used two-circuit system.

According to the type of heat exchanger

To bypass the boiler is very important toselect the type of heat exchanger. From this directly depends on the service life of the unit. There bithermic heat exchangers operating on a "pipe in pipe", and devices with separate heat exchangers. In such boilers used for heating a copper coolant heat exchanger and the hot water supply - stainless steel. Bithermic boilers are only suitable for heating water received from the central water supply system. If you use water from their own wells or well - install the boiler with two heat exchangers.

By way of exhaust gas

Another important feature is a method for gas boiler flue gases. There are turbo (nedymohodnye) and device chimney.

Installation of gas boiler to the chimney systemflue gases, as the name implies, requires a chimney with a natural draft. In addition, these units burning in an open chamber is maintained by a fence of oxygen out of the room where it is installed. Enterprises gas industry imposes very strict requirements to the installation of boilers. As a rule, it must be specially equipped boiler.

Coaxial pipe for turbo boiler

Coaxial pipe for turbo gas boiler provides the supply of air and combustion gases

Turbocharged boilers are equipped with a closed chambercombustion oxygen to which the force is applied from outside by a special conduit. And the products of combustion are discharged by the fan. Most of these devices are equipped with a coaxial tube - for the inner loop is given carbon monoxide, and the external air is supplied for combustion.

Automation and Security

Virtually all modern heating systemsequipped with an automatic safety system, which blocks boiler operation in the presence of any faults. This system stops the gas supply if the burner goes out, that will save you from poisoning. Most security systems react as the absence of smoke, overheating, water, power off and coolant overheating.

Automation for the boiler

The automatic control system for a gas boiler provides the control, regulation, the possibility of regime change

When choosing a boiler note,Whether there is an automatic release system in addressing the problem. If after the security system worked, it is necessary to include the boiler manually, it is not suitable for people who are often absent at home. When there is a longer interruption, the heating in the winter danger to "unfreeze" the heating system, which will lead to the rupture of pipes and entail the need to replace them.

Installation and maintenance of gas boilers

Remember that the installation and maintenance of gasthe equipment should be done by the gas company. Do not try to do it yourself. This may cause not only serious penalties, but also a danger to life and health of your loved ones. Any work on only specially trained persons should be held pipeline and gas equipment.

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