Minimum costs for heating the house! Choosing the most economical gas boiler
The low quality of electricity supplied to most gas boiler installation locations, does not allow full use of functions the last ones.
This leads to rapid and serious breakdowns and also significantly reduces the service life of the products.
There is a provision for this case using a stabilizer, which controls the frequency and strength of the current, thereby acting as a “power supply” for the entire gas system.
Main characteristics of wall-mounted and floor-standing gas boilers
When choosing the right gas boiler for an autonomous heating system it is necessary take into account certain features of this device so that the selected unit works not only for a long time, but also as efficiently as possible.
Among the most significant characteristics gas boilers can be divided into the following:
- Power
It is precisely on it that the boiler's ability to withstand a particular load depends. The capacity of heating equipment always means the volume of premises that can be heated with its help under certain external climatic conditions. It is very easy to calculate the capacity sufficient for heating a particular house. It is necessary to start from the fact that for heating 1 sq. m. premises with ceiling heights no more than 3 m enough 100 W boiler capacity.
- Number of contours
Gas heating boilers can have one or two contours. In the first case, the device is used exclusively for heating the coolant, which will circulate in the heating system. In the second case, one of the circuits heats the coolant, and the other heats the water for the water supply system.
Double-circuit Boilers can directly supply heated running water to the system or are equipped with a boiler for heating water. Single-circuit The devices are used mainly in cases where the house where they are installed will not be residential.
Instantaneous boilers They heat water quickly only with a small water intake from the system, they are compact, but at the same time they can heat water unevenly. Boilers with boilers They heat water evenly and store a reserve equal to the volume of the boiler, but they are quite bulky and difficult to maintain/repair.
- Control type and number of available options
Most modern gas boilers equipped with an electronic control system for optimal operation of the device.
Some functions of the devices allow not only to use them more efficiently, but also to reduce fuel consumption.
For example, automatic regulation of boiler power depending on the external temperature, the ability to program the device depending on the day of the week, time of day, etc.
- Installation method
Gas boilers can be installed on the wall or on the floor. The first type is ideal for heating rooms with an area of up to 350 sq. m. Such boilers are equipped with everything necessary for autonomous operation. Floor-standing units are mostly intended for heating industrial premises, since their starting capacity is 32 kWSuch gas devices are most often single-circuit atmospheric.
Rating of the best models of boilers on liquefied or natural gas
Depending on the characteristics of heating devices discussed above, the following is given: classification gas boilers.
Single-circuit
Below are the most popular models of single-circuit gas boilers.
Viessmann Vitodens 100
Economical model with low fuel consumption, high power rating (about 35 kW) and ease of maintenance. It is distinguished by high-quality assembly, ease of operation and high adaptability to various weather conditions.
Photo 1. Wall-mounted gas boiler from the manufacturer Viessmann, model Vitodens 100. Equipped with an electronic control system.
Protherm Medved 30 Klom
The product stands out for its quality and durability, but consumers value the model in question most for its economy (at maximum power, fuel consumption is about 5 cubic meters) and absolute safety. The device has a high efficiency rating (about 92%) and power (50 kW), which allows using a gas boiler to heat both small and large spaces.
The device has a built-in tank with a capacity of 110 l for heating tap water.
Attention! Disadvantages of the model: Possibility of automatic shutdown at low gas pressure in the system and dependence on the power grid (without electricity, the piezo ignition will not work).
Alpine Air FL 8
This is a low-power boiler designed for heating small rooms. up to 50 sq. m.
It is ideal as a garage heating device because it is economical in its use of natural gas (no more than 0.95 cubic meters/hour) and has a fairly high Efficiency (94%).
The model is completely autonomous, compact, and has a reasonable price.
Among disadvantages It is possible to note the sensitivity to gas pressure (if its level is too low, the device may switch off spontaneously).
Kusaterm 10 20
Refers to models intended for heating bath rooms. The device is equipped with a fan for faster air heating, has high-quality thermal insulation on the surface of the case and a long service life (according to consumer reviews). Among disadvantages It is worth noting that the device has a considerable price, which is fully justified.
Double-circuit
Double-circuit models are used for heating and hot water supply of premises.
Bosch GAZ 6000 WBN 24CRN
Gas wall-mounted boilers of this series with a nominal power of 24 kW are distinguished by high efficiency, ergonomic stylish design, stable operation under conditions of unstable voltage and pressure level in the gas system.
This model was developed specifically for Russia, or, more precisely, for its climatic features.
Vaillant Turbotec Pro VUW 242
Vaillant gas boilers are undoubtedly distinguished by their high quality of workmanship and incredible efficiency, but their maintenance is too expensive.
Ariston Egis Plus 24 FF
Compact, easy to use, multifunctional, quite powerful (24 kW) for heating medium-sized rooms unit. This wall-mounted boiler is characterized by high functionality even with sudden pressure surges (works perfectly at a pressure of 5 mbar). The model can also function at extreme ambient temperatures (up to -52 degrees).
Navien Deluxe 24K
Model operates with maximum efficiency and minimum fuel consumption. The device is not affected by power surges thanks to the built-in SMPS chip. The boiler is convenient and easy to operate. The primary heat exchanger of the device is made of stainless steel, which slightly reduces the efficiency of the boiler, but significantly extends its service life.
Baxi Main 5 24 F
The best representative of the line of biothermal heating devices. Boiler capacity (24 kW) is sufficient for high-quality heating of a room of an area up to 240 sq. m.
Photo 2. Gas boiler Baxi Main 5 24 F. It is a wall-mounted type of device.
The heat generator is designed to operate under gas pressure in a centralized system. from 13 to 20 mbar. This means that the device cannot be used in places with frequent pressure surges, but the boiler has proven itself to be excellent in high-pressure conditions: the device functions without failures at a pressure of 37 mbar when powered by a mobile/stationary gas tank.
Buderus Logamax U072
This is a low-noise, efficient wall-mounted gas boiler with a capacity of up to 24 kW, capable of efficiently heating a room of an area up to 240 sq. m. The model is resistant to voltage fluctuations and works well even at low pressure readings (about 9 mbar).
Useful video
Watch the video, which tells you what characteristics to pay attention to when choosing a gas boiler.
Conclusion: Choosing the most efficient and cost-effective device
Among the single-circuit boilers presented, the best can be considered Viessmann Vitodens 100 due to its versatility and high efficiency.
It is difficult to single out a “leader” among dual-circuit models, but preference can be given to Bosch GAZ 6000 wbn 24crn.
This device impresses with its “endurance” and high efficiency even in harsh climatic conditions.
But the most economical boiler can safely be called Alpine Air fl 8, which is difficult to find an alternative to among low-power models, is no less economical and Ariston Egis Plus 24 ff, which is for 1 hour of work consumes no more than 2.58 sq. m natural gas.
Comments
And its most important advantage: when we leave the house for a long time, we do not turn it off, but it does not work in the normal mode, but we set it to the temperature maintenance mode, which is very important for saving gas and preserving the system in winter. And it turns on only when the water in the system cools down and heats it.
I have a dual-circuit gas boiler "Navien" and I am completely satisfied. In addition to heating the house, we have hot water at home all the time, it does not require additional space for a boiler. And after installing this boiler, I immediately installed a shower at home. And it does not need to be lit like I lit the AGV-80 before and it is much easier to regulate the temperature on it.