Modern boilers are high-tech equipment, the operation of which is controlled by electronics. She, in turn, is very demanding on power. It is also demanding on the magnitude of the voltage, its shape: there must be a sinusoid and 220 V with some error of 5%.
The need to use a stabilizer
As practice shows, a huge part of breakdowns of gas boilers is connected precisely with differences in the network. For this reason, experts recommend additionally installing a stabilizer or uninterruptible power supply. The peak of breakdowns occurs in summer or late spring. There are two reasons for this, one of them is expressed in the neighbors who started repairs or construction, the other in summer thunderstorms. If you can somehow predict the approach of a thunderstorm, then it is simply impossible to find out when someone will use a grinder, welding machine or sawmill. Therefore, it is recommended to protect expensive equipment in advance.
For reference
The stabilizer for the heating boiler , the price of which will be mentioned below, can be used to protect only the equipment, in this case the device must be connected to the network, and the voltage supplied to the boiler. If the stabilizer is installed on a house or apartment, then for boiler equipment these devices will be needed only if the unit with an electric motor is also powered from the outlet. This includes a washing machine or refrigerator. Jumps during the switching off and on of such devices will adversely affect the automation of the equipment.
Description of different types of stabilizers and features of choice
If you want to choose a stabilizer for a heating boiler, you should get acquainted with the main varieties of such devices. They can be electromechanical, relay or electronic. The second variety is also called digital, but electronic ones are known as thyristor ones. These devices are based on an autotransformer. In electronic and relay, it has windings in an amount from 4 to 20. By disconnecting and connecting them, the input voltage can be aligned.
The stabilization accuracy will depend on the number of windings. Thus, the more of them, the smaller the correction step will be. This indicates that the voltage will be maintained with minimal deviations. The difference between electronic and relay models is in the switches used. As the name implies, these are thyristors and relays. The construction scheme is similar, but the response time of the elements is different. Thyristors are faster, which indicates that electronic models have better performance.
Specialist advice
With the help of relay stabilizers, accuracy in the range of 5 to 8% can be ensured. As for electronic, the accuracy in this case can vary from 2 to 3%. When choosing a stabilizer for a heating boiler that runs on gas, an electronic version should be preferred. A positive feature is the low noise level during operation, but the downside is the high cost.
Characteristics of electromechanical and relay stabilizers
Choosing a stabilizer for a heating boiler, you should get acquainted with the main characteristics of the models. For example, electromechanical are ready to last from 1 to 5 years, the manufacturer usually gives a guarantee for one year. The voltage range can vary from 150 to 250. Such stabilizers will have to be serviced once a year, and the reaction time is 10 V per second. When choosing an electromechanical stabilizer for a heating boiler, you must bear in mind that it provides twenty percent protection against surges, and the stabilization accuracy varies from 2 to 3%. The cost of 1 kW in the end can vary from 900 to 1600 rubles.
If we compare with relay stabilizers, then we can note that they will last longer. The minimum life is 3 years, but the warranty from the manufacturer remains the same. Such voltage stabilizers for heating boilers have a voltage range from 120 to 260, they do not require maintenance, and the reaction time is 50 V per second. By purchasing such a unit, you can count on fifty percent protection, but the accuracy of stabilization can vary from 5 to 8%. As a result, the cost of 1 kW will be slightly less compared to electromechanical devices, this range varies from 700 to 1500 rubles.
From the foregoing, it can be concluded that electronic voltage stabilizers for heating boilers are preferred for gas equipment. Such devices cost more, but the price pays off. And if you already have a relay stabilizer, then it must be installed on another unit or supplemented with an uninterruptible power supply.
Recommendations for choosing a stabilizer
We have already sorted out the type of stabilizer, now it is necessary to determine the power. The power of boiler equipment can be found in the passport, usually it varies from 100 to 200 W, but this value is average. In those moments when the device turns on or off, this parameter can exceed the original 5 times. Therefore, the figure that you could find in the passport must be multiplied by 5, adding a margin of 10%. This will determine the required power.
Now you can choose a brand, you should pay attention to the country of origin. For example, in China they produce good products. It is also important to consider the power range. If it is wide enough, then this feature can be called good, because the technology has been worked out. You should not purchase new items, since years are needed to develop a normal model.
Cost for stabilizers
If you want to buy a stabilizer for a heating boiler, Teplocom can be a great solution. Model ST-555 can be purchased for 3500 rubles. Power is 555 VA. This stabilizer, according to the manufacturer, is quite reliable and simple. It is intended for automation of boilers and heating systems. With it, you can get a balanced output voltage at values ranging from 200 to 240 V.
As another model, you can consider the stabilizer for the Hunter 440 heating boiler. It can be purchased for 5500 rubles. The equipment is a single-phase device, the rated power of which is 0.350 kW. The input voltage range varies from 120 to 260 V. The operating frequency is 50 Hz, the efficiency reaches 97%. The error can be 8%. Operation is possible at a relative humidity of not more than 80%. This stabilizer for a gas heating boiler can be operated at temperatures from +5 to +40 ° C.