Choosing a gas boiler for a private house: what to look for
Content
- 1 How to choose a double-circuit boiler for a private house?
- 2 Which unit to choose floor or wall?
- 3 What type of burner to choose?
- 4 What parameters should I look for when choosing a gas boiler?
- 5 How to correctly choose the power of boiler equipment?
- 6 Which room is best for heating appliances?
- 7 How to choose a manufacturer?
Today, gas is rightfully considered the most economical type of fuel. After all, using it, you can significantly reduce heating bills. It is especially advantageous to carry out gas where the highway passes in the immediate vicinity of the house. By installing a gas boiler, you can get heat and not overpay. The main thing is to correctly approach the issue of choosing a heating device. The warmth and comfort in your home will depend on its quality and reliability. If you do not know how to choose a gas boiler, then it will not be superfluous to familiarize yourself with useful information on this issue.
How to choose a gas heating boiler of the required power? The main characteristic of gas equipment is power. For a more accurate selection of power, you can use the services of specialists who will develop a heating system project. Power should be selected taking into account the area of the room and the needs of users. When buying, it is also necessary to adopt the power indicators of boiler equipment.
You can choose a gas boiler for heating a private house correctly if you know the purpose of its application. If the unit is intended only for heating water, then a single-circuit model is perfect. If you want to provide your home with heat and hot water at the same time, then you should choose a dual-circuit model.
How to choose a double-circuit boiler for a private house?
The design of such devices is complex. It incorporates an automatic system, boiler, burner. The boiler can be remote type or built into the housing. The choice of a double-circuit gas boiler should be based on the material of which the heat exchanger is made. The most common are steel heat exchangers.
Before buying, determine the amount of water consumed. If you consume up to 15 liters of water per minute at a temperature of 30 degrees, then pay attention to instantaneous water heaters. In them, water, passing through the heating system, immediately reaches the user. Such a boiler has a compact size and low weight.
When choosing a gas heating boiler, pay attention to the presence of useful functions. If you need a boiler that will operate on one power mode, then pay attention to single-stage models. Two-stage equipment operates at two capacities.
Technique with modulation has the ability to continuously adjust power. Boilers of the first and second type are more economical. The unit operates at high power only when the window temperature is low. In addition, single-stage units turn on and off much more often and therefore wear out faster.
Which unit to choose floor or wall?
Floor units are large in size, so they are installed only on a horizontal surface. This unit can be made of cast iron or steel and has a large capacity, can supply heat to spacious country houses, industrial facilities, etc.
The cast iron from which the boilers are made is a durable material, which is characterized by increased resistance to rust, while it is quite fragile. Care must be taken when installing or transporting equipment. In addition, cast iron does not accept local overheating. The lighter and more durable material is steel. Steel is afraid of corrosion.
Wall units are mounted on a vertical surface. Their power is less than that of the floor, and the dimensions are more compact. The choice of wall-mounted gas boilers is an excellent solution for apartments that are located in multi-storey buildings, cottages. Despite the small dimensions, wall-mounted equipment can be represented as a whole heating complex, which has all the necessary options.
What type of burner to choose?
An atmospheric burner is a device that has a natural way to remove combustion products. This device will require installation of a smoke exhaust system. Atmospheric burner units are cheaper, but less powerful. An inflatable burner is considered more powerful. It is equipped with an electric turbine, which conducts forced ventilation of the combustion chamber.
What parameters should I look for when choosing a gas boiler?
The purchase of a gas boiler for a private house is a rather crucial step, since it is necessary to adopt a large number of important points. First of all, determine the requirements for the heat source and the operating moments. Power is required to be selected from the overall dimensions of the building.
Pay attention to the materials from which the walls and floors of the building are made. They must be non-combustible. The wall must be able to support the weight of the heating equipment.
During the installation of boiler equipment, it will be necessary to provide for the presence of an additional room that will be equipped with ventilation and have windows of the required size for the removal of combustion products.
Heating boilers do not welcome power outages. With private network outages, the automatic system may fail. Gas supply must also be reliable. If your house is located at the end of the street, there are interruptions in the supply of gas, then think about buying a unit that runs on a different type of fuel, since at negative temperatures outside the window you have the risk of being left without heat.
The issue of selecting a reliable heating device can be considered both at the stage of designing a house, and at the completion of construction. The first method is the most convenient, since you can foresee all the inaccuracies in advance, and experts will tell you which unit is best for your home.
How to correctly choose the power of boiler equipment?
It is customary to select the power of a gas boiler according to the specific thermal power, that is, 1 kW should be accounted for 10 square meters. This figure is an estimate. For a more accurate calculation, it is necessary to adopt a large number of factors:
- It is required to determine the dimensions of the heated building and the area of each wall.
- It is necessary to measure the area of all exterior windows and doors.
- To calculate the heat loss. This can be done by using the special formula Q = 1 / K x (tv - tn) x C, where K is the heat transfer resistance, tv is the internal temperature, tn is the lowest temperature, C is the total area of all walls, measured in square meters.
In order to find the heat transfer resistance, it is required to divide the wall thickness by the thermal conductivity index. If the building is constructed using several materials, then it will be necessary to calculate the resistance of each layer. Thus, the calculation of power will have an individual character.
Which room is best for heating appliances?
The choice of additional premises for a gas boiler must also be approached with maximum responsibility. If you do not know which boiler to choose, take advantage of professional help. Ideally, the room should be presented in the form of a boiler room, equipped with exhaust and house channels, which are intended for ventilation. This is especially true for equipment such as a floor gas boiler. New equipment should fit freely in the room. In modern apartments and cottages, gas boilers are often installed in the kitchen or in the bathroom. For such rooms, a wall-mounted gas boiler is suitable.
If the room is small, the mounted unit is ideally suited, which is equipped with an integrated tank, an automatic system and a circulation pump.
If there is no chimney, then the pipe outlet can be made externally, horizontally. If you do not have an exhaust hood or it is not possible to provide it, then you can use units that are equipped with a closed combustion chamber. Such equipment does not need to install special ventilation in the room.
If there is no furnace in the building, then this problem is also completely solvable. Today, wall and floor gas boilers are sold, which are able to draw outside air through a double-walled pipe of a coaxial chimney.
Please note that the gas boiler for a private house is a high-risk device, as it is considered a technologically complex device. Each gas equipment must undergo regular maintenance. The elements of the unit must be cleaned of dirt, rust, soot, deposits. If this is not done, then the equipment will fail before the deadline.
For maintenance, you must seek the help of highly qualified specialists. This is a guarantee of quality and safe operation. Do not try to interfere on your own with the internal structure of the unit, as this can lead to emergency situations. You can only replace the batteries yourself. If any malfunctions occur, contact the service center specialists.
How to choose a manufacturer?
During normal operation, the gas unit benefits the home. It gives heat and hot water. In the event of an emergency, the unit is dangerous. A high-quality and modern boiler should include a valve in its design that cuts off the gas fuel supply, as well as a security system that is equipped with various types of sensors.
The cessation of fuel in the unit can be observed in a wide variety of situations. As a rule, fuel stops flowing if the flame on the gas equipment has died out, the voltage in the electrical network has disappeared, the water level in the unit is excessively small or the pressure has decreased.
Today in the consumer market you can buy boiler equipment from a wide variety of manufacturers: Russian, foreign. Modern equipment is of good quality, equipped with an automatic security system.
When buying a gas unit, pay attention to the availability of a guarantee. Carefully study its conditions. Even the most expensive boiler can fail, so warranty service is mandatory. Before choosing a gas boiler, it is advisable to consult a specialist or read reviews.
For our country, the instability of the gas network, low temperatures are a frequent occurrence. Water is also of poor quality. Choose a unit that will be optimally adapted to Russian conditions.