In such an important matter, it is better to avoid mistakes: how to choose a gas boiler for heating a private house?
For organizing heating in a private house or apartment there are a large number of schemes gas boilers: wall-mounted or floor-standing, single-circuit and double-circuit, condensing and with recuperator, with closed or open combustion chambers...
How to choose a gas boiler for a private house?
When choosing carefully weigh the technical parameters, determine tasks, which stand in front of the heater, are assessed installation conditions And system type heating.
Power
For houses with standard heating, the heating power calculated based on the area of the house or the volume of heated air. Heating one square meter the premises require peak power in 0.1 kilowatt.
Private house in 100 square meters — 10 kilowatts. This calculation is approximate, the use of air recuperation and insulation will reduce heat loss. When choosing, many make two typical mistakes:
- Too powerful boiler. The equipment will operate in minimal modes, often turn off, and the house will be too hot in the off-season.
- Choice low power boiler. In severe frosts it cannot cope with the load, operation in forced mode is harmful for the heat exchanger.
Functional
In addition for heating, the gas boiler performs the function heating running water. Before choosing, be sure to consider the quality of the water and its possible consumption. If the water is hard, calcareous, the narrow heat exchanger will quickly become clogged. The heater may fail. In this case, it is worth choosing a scheme with indirect heating boiler, or install heat storage tank.
Photo 1. An example of a heating system with a single-circuit gas boiler together with an indirect heating boiler.
Which installation location is better?
If the house is provided isolated room, equipped with ventilation and a sleeved chimney, you can purchase a boiler with open combustion chamber. IN isolated apartments, or if it is impossible to install a chimney, the solution will be to install turbocharged boiler with closed chamber combustion.
This device is small in size, operates quietly, and does not use room air for combustion. Combustion products are emitted directly to the street through a coaxial chimney. Such a unit can be installed on any external wall of a building.
Wall mounted Boilers are convenient and take up less free space. Floor standing Ideal for use when more power is required.
Availability of energy-saving heating systems
The boiler can be controlled as follows: mechanical devices, and electronic unit.
"Smart" control will increase efficiency and reduce the amount of gas consumed.
Condensation system and recuperation The temperatures of combustion products also increase the efficiency of the heating system.
Energy dependence
If in your region frequent power outages, it is worth paying attention to the heaters with mechanical regulators. Paired with a gravity heating system and a heat accumulator, such a heater will perform its function flawlessly.
By adding an energy-dependent boiler with ECU uninterruptible power supply unit it is possible to ensure heating operation during power outages.
Important! If outages are long, it's worth stocking up diesel generator or solar panels.
Material of manufacture
When choosing a boiler, pay attention to the material heat exchanger and internal piping. The use of low-quality parts requires frequent repairs, since the resulting electrochemical pair leads to corrosion. The reliability of the heating system decreases.
The most durable are considered to be archaic structures with cast iron heat exchanger. It seems that even time cannot harm these materials. But they are characterized by low efficiency, which negates the benefit of durability.
The optimal solution would be to use copper components. Copper is the most inert, non-oxidizing metal. In this case, you should not install aluminum batteries. or pipes with an internal aluminum layer - corrosion centers are formed.
Fuel type
Density and calorific value main gas And compressed propane-butane from cylinders or gas tanks are different. Burning these materials requires a certain shape of mixers and nozzles. When purchasing, be sure to find out whether the boiler is suitable for the type of gas available to you and whether it can be converted.
Attention! Refurbishment and repair of gas equipment must be carried out by a qualified specialist. For safety reasons and to ensure trouble-free operation of the equipment, do not carry out repairs yourself!
Useful video
Watch the video, which talks about another feature of choosing a gas boiler.
The result of a wrong choice
A correctly selected gas boiler will work perfectly for many years without repairs and problems. What problems can you encounter, if the choice is incorrect:
- difficulties in maintaining and regulating temperature indoor air;
- rapid failure, expensive repairs;
- difficulties with commissioning residential premises;
- risk of carbon monoxide poisoning if installed incorrectly;
- uneven operation with reverse thrust, spontaneous attenuation;
- big bills for gas;
- overpayment for unnecessary functions;
- reworking of heating piping when replacing the boiler.
Determining the tasks facing heating and analyzing the installation conditions will tell you which boiler is best to choose. Not always the most expensive and a unit packed with functions will be optimal.
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