Voltage stabilizers for gas boiler Baxi: TOP-12 best models according to consumers

Comparison of the most popular boiler models Baxi, Vaillant, Viessmann, Buderus, Protherm

BAXI Eco Four 24

Advantages:

• The design of the boiler combines two circuits - heating and hot water - with a water heater.
• Unification of used energy resources from natural to liquefied gas.
• Automation clearly controls the specified mode of operation, adjusting the work to possible changes.
• Low noise from the operating unit, coupled with a stylish design and easy installation.

Flaws:

A "smart" system is extremely dependent on the stability of the power supply, which requires the unit to be connected through a voltage stabilizer.

All Baxi gas boilers

Buderus Logamax U052-24K

Advantages:

• The design of compact dimensions, which allows solving the issues of heating and hot water supply in an apartment or house in a limited space.
• The closed combustion chamber does not change the conditioning mode.
• The LED temperature display makes it easy to control.
• A number of protective systems - from anti-blocking of the pump to "Anti-freeze".

Flaws:

To ensure the normal functioning of all boiler systems, its installation must be carried out by qualified specialists with a mandatory check of all operating modes.

All gas boilers Buderus

Protherm Cheetah 23MTV

Advantages:

• A novelty on the Russian market with the forced removal of combustion waste.
• Heating modules are made of chromium-nickel steel for longer service life.
• The presence of a modulating burner ensures smooth adjustment of the boiler power, ensures efficient use of fuel and favorable efficiency.
• The adjustable bypass is combined with a closed expansion tank, safety valve and three-way valve to protect against overheating and system blocking.
• Work in three modes - summer, winter and vacation.

Flaws:

It is effective for space heating with a total area of ​​up to 200 sq.m. When calculating power in conjunction with DHW, it is recommended to use a reduction factor.

All gas boilers Protherm

Viessmann Vitodens 100-W

Advantages:

• Wall-mounted condensing boiler with an attractive power range.
• Modern matrix cylindrical burner.
• Automation has the option of limiting power with the possibility of installing a room temperature sensor in combination with an electronic control unit for DHW parameters.
• The maximum noise level is 38 dB.
• Self-cleaning effect from scale due to the smooth surface of the stainless steel heat exchanger and the possibility of redirecting the movement of flue gases.

Flaws:

More complex installation of a condensing boiler with the peculiarities of arranging a coaxial chimney (inclination angle).

All Viessemann gas boilers

Vaillant VUW INT 242-5-H

Advantages:

• Wall-mounted condensing boiler with an attractive power range.
• The choice of consumers who value comfort and increased safety.
• The presence of a modulating burner improves the controllability of power parameters.
• Disposal of combustion waste is carried out through a coaxial chimney.
• Service with frontal access to the main units.
• Intelligent pressure control in the heating system with automated troubleshooting via diagnostic system.

Flaws:

The electronic filling of the boiler is very sensitive to power fluctuations, and its repair is expensive.

All Vaillant gas boilers

When choosing the best option for you, we recommend focusing on the technical characteristics of the boilers, compliance with the requirements.

For apartment heating, gas boilers Protherm and BAXI are more efficient. They are also suitable for heating a private house, but Vaillant, Buderus and Viessmann will do better.

Our advantages:

• we work around the clock
• exist since 1999
• own emergency service
• own service department
• heating repairs of any kind
• repair of water supply systems
• restoration of boiler equipment
• pipe refurbishment and replacement

LLC DESIGN PRESTIGE reliable partner

Additional functions and features of stabilizers

In addition to the main purpose of voltage normalization devices, they have additional functions and capabilities that may affect which stabilizer to choose for a gas boiler. Here are the main ones:

Sockets. In addition to conventional sockets without grounding, it happens that the device is equipped with a socket with a grounding conductor for refrigerators, washing machines and other equipment that requires grounding. There are models that are equipped with an IEC 320 C13 computer socket. Most users, of course, will not connect both the boiler and the computer to the same stabilizer. However, if suddenly such a need arises, then it is worth buying a model with two different types of sockets.

Overheat protection. Protection is a thermal sensor that turns off the device when it reaches a critical temperature. In more advanced models, there is an additional signaling device that starts beeping as the device approaches the critical temperature, that is, even before the actual shutdown

It is especially important that such protection be in devices of the theristor and seven-stor type.

Protection against high frequency interference. In such models there is a special filter that delays high-frequency interference that occurs in the network

For boilers, such interference is not terrible, so if you buy a stabilizer only for heating, then you do not need protection against HPV. But for computer technology, we recommend taking a model with such a filter. A simple inexpensive SVEN VR-L1500 stabilizer can boast of such protection.

• Short circuit protection. It will turn off the device completely if a short circuit occurs on the line.This is not just a voltage surge, but a high short circuit that cannot be stabilized and which can harm the equipment. Most often, a short circuit occurs on an overhead power line, so it is useful for residents of private houses to have just the same device with short circuit protection.
• Wall mounting. Usually, additional fasteners are included with which you can hang the device on the wall. This greatly saves space on the floor and simplifies its operation, since you do not need to bend down to look at the voltage readings or switch something. Not all models can be wall-mounted, so this parameter should be checked with a particular seller.

The best voltage stabilizer for a boiler - the relevance of the issue

There is a lot of talk about the unstable voltage of power grids, and this is especially true for the private sector, but the significance of the problem does not affect its solution in any way. According to GOST 29322-2014, household consumers must be provided with a mains voltage of 230 V with a permissible deviation up or down by 10%. Despite the fact that the standards for this value are set, and the utility is entrusted with the obligation to comply with them, in reality, equalizing voltage deviations is the concern of homeowners. After all, it is on their shoulders that the economic burden of repairing or replacing failed equipment will fall. And the correct solution to the problem, which voltage regulator is better for the boiler, allows you not to think about such troubles.

photo from the site

The main difficulties faced by people who connect to power lines in the segment of low-rise buildings can be divided into three groups:

• Consistently low voltage, typical for residential facilities located at a considerable distance from transformer substations. As a rule, this indicator is in the range of 160-200 V, but lower values ​​can often be found.
• Systematically overestimated input voltage, reaching 250-270 V is typical for houses located close to the substation.
• Sharp drops in electric voltage, which take place both in the previous two groups, and in those houses for which systematic deviations are atypical.

Gas boilers do not belong to the high-precision class and remain operational at voltage values, the difference of which from the norm lies within 10%.

The passport of heating equipment usually indicates the number 220-240V, but in practice they retain the full volume of performance even at values ​​of 200-245V.

Sensitive automation does not withstand sharp fluctuations in the supply of electricity, and replacing a burned-out board will pull a significant amount. This makes it expedient to install electrostabilizing devices that equalize the input voltage and ensure trouble-free operation for the entire period declared by the manufacturer.

Types of stabilizers according to the principle of operation

So, what to do if the voltage in the network jumps like a mad bull on a rodeo, trying to "throw out of the saddle" equipment unsuitable for such attractions?

With some familiarity with the theory of electrical engineering, the solution is found quite quickly: a transformer is needed that would automatically change the ratio of turns in the coils based on the input voltage deviation.

Such a device is called an autotransformer by electricians, it is it that forms the basis of the stabilizer.

If in your area the quality of power supply is quite acceptable, you still should not neglect the installation of a stabilizer. A thunderstorm, a neighbor’s welding machine and many other reasons, even in a stable electrical network, can cause interference, due to which sensitive electronics, equal in cost to half the boiler, can easily order a long life.

This advice is also relevant for those whose gas boiler is powered from one outlet, for example, with a refrigerator: every time the latter is turned on, a power surge will be observed in the network, which can also render the board inoperable.

According to the principle of the device, stabilizers are divided into three types:

Electromechanical

In devices of this type, the number of turns of the secondary winding involved in the operation is determined by the position of the current collector, which has the form of a roller or a graphite rod (brush). This element moves along the coil thanks to the engine. Obviously, this principle of the device provides the maximum possible smoothness of adjustment - the coil can be increased or reduced literally in one turn. Hence the high accuracy of such devices - about 3%.

Another advantage is the wide voltage range in which devices of this type can provide a stabilization effect. For most models, its lower limit is 190V, the upper one is 250V.

But electromechanical stabilizers are far from ideal. Here are their weaknesses:

• Insufficient performance.
• The contact of the winding with the current collector is broken over time due to contamination or wear of the latter (rollers and brushes have to be changed periodically).
• During the movement of the current collector, sparking occurs, as a result of which the installation of stabilizers of this type in the same room with gas equipment is not allowed.
• The motor makes noise when running.

In terms of cost, electromechanical stabilizers occupy a middle position between the other two varieties.

Electronic (relay)

An electronic voltage stabilizer for a gas boiler is often called digital. The device consists of a set of coils with a different number of turns. Depending on the change in input voltage, the stabilizer connects either one coil or the other, as a result of which the conversion coefficient changes.

Thus, the adjustment is stepwise, and its smoothness, and, accordingly, the accuracy, depends on the step between the steps. The latter, obviously, will be the smaller, the more steps are available in the working range.

Relay stabilizer

In the cheapest models, 4 coil stages are used, in expensive ones - up to 20. This provides an adjustment accuracy of 5% - 8%, that is, the output voltage can range from 203 to 237 V. .

Relays act as winding switches. They provide a higher response speed than electromechanical stabilizers, but at the same time they also produce a lot of noise - relay clicks are heard quite clearly.

To date, relay stabilizers are the cheapest.

Thyristor or triac

According to the principle of the device, devices of this type are identical to relay ones, only the switches are purely electronic: semiconductor elements are used - thyristors. This provides a number of benefits:

• The performance is maximum.
• The high response speed provides the ability to connect a large number of steps, which allows you to increase the adjustment accuracy to 2% - 3% (the output voltage will be from 214 to 226 V).
• When triggered, the stabilizer does not make any noise.
• The absence of moving parts eliminates any wear, so thyristor-based models have an almost inexhaustible resource.

The only drawback of this type of stabilizers is the high cost: of all types, they are the most expensive.

Relay

floor standing

RESANTA ACH-12000/1-Ts

pros

• durability
• strong body
• interference filtering
• overheat protection
• famous brand

Minuses

clicks when switching

From 12200 ₽

The well-known Latvian company Resanta presents a single-phase stabilizer with a total power of 12 kW. The device operates under the control of a built-in microprocessor. The manufacturer has provided both filtering of frequency interference at the input and output, and emergency load shutdown, which allows to ensure the longest possible life of the boiler.

ERA SNPT-2000-Ts

pros

• adequate price
• screen indication
• quality assembly
• low noise
• delayed start

Minuses

buzzes and squeaks when voltage drops

From 3099 ₽

An inexpensive uninterruptible power supply with active power up to 2 kW is used to protect sensitive equipment from power surges. Permissible deviation from the norm is 8%. For the convenience of connecting devices, two European-style sockets are located on the body of the stabilizer. A set of indicators allows you to control the operation of the device.

wall

RESANTA LUX ASN-500N/1-C

pros

• compact
• silent
• rugged body
• simple control
• small error

Minuses

one socket

From 2200 ₽

This model should be paid attention to those who decide to choose a wall-mounted UPS for a 220 volt gas boiler. The device is well suited for a small country house or apartment heated by a boiler with a power of up to 500 W

Of the advantages of the device, fast response (7 sec.), Pure sine wave, clear control.

Energy APC 1500

pros

• wide adjustment range
• specially for the boiler
• low cost
• relay

Minuses

low power

From 4320 ₽

The single-phase relay stabilizer from the Russian company Energia has a total power of 1.50 kVA and an extensive adjustment range (120-276 V). The device is designed specifically to protect heating equipment from network failures. Ideal for single-circuit and double-circuit boilers of many well-known manufacturers.

Universal

BASTION Teplocom ST-555-I

pros

• holds the load well
• does not overheat
• 5 years warranty
• lightning protection
• plastic case with display

Minuses

clicks loudly when shifting

From 3970 ₽

A compact inexpensive device with a load power of 555 VA is suitable for protecting a small boiler from breakdowns and unauthorized shutdown. The device fits perfectly into the interior of the room. It can be hung on the wall next to the boiler or placed on the floor. Provided LED backlight and indication of operating modes.

Energy Voltron 5000 (5%)

pros

• ease of installation
• light weight
• build quality
• appearance
• bypass

Minuses

clicks relay key

From 10100 ₽

The Voltron 5000 uninterruptible device is able to reliably protect both a powerful boiler and several other devices from surges and drawdowns in the electrical network. Thanks to well-thought-out fasteners, the device is easily mounted on the wall

It is also important that this model can work at a humidity of 95% and temperatures from -30 C to +40 C.

Rating of the best stabilizing devices

We bring to your attention our own TOP 7 of the best 220V stabilizers, which we compiled after studying numerous ratings of electrical appliance stores and customer reviews. Sorted model data in descending order of quality.

1. Powerman AVS 1000D. Toroidal unit with high quality standards: low noise level, high efficiency, small dimensions and weight. The power of this model is 700W, the operating temperature is within 0...40°C, and the input voltage ranges from 140...260V. It has six adjustment levels and two outputs, and the reaction time is only 7 ms.
2. Energy Ultra. One of the best electronic models for the buderus, baxi, viessman gas boiler. It has high technical parameters: load power 5000-20,000W, range 60V-265V, temporary overload up to 180%, accuracy within 3%, frost resistance from -30 to +40 °С, wall mounting type, absolute noiselessness of operation.
3. Rucelf Boiler-600. An excellent device in a high-quality metal case, inside of which there is a well-insulated autotransformer. It has high technical parameters: power 600W, range 150V-250V, operation within 0 ... 45 ° C, four steps of adjustment, and the response time is 20 ms. There is one euro socket, which is located below. Wall mounting type.
4. Resanta ACH-500/1-Ts. A relay-type device with a power of 500 W and an input voltage of 160 ... 240 V. Products of the Resanta brand have two design variations. The response time is 7 ms, it has four adjustment levels and built-in protection against overheating, short circuit, high voltage.Connects to a grounded outlet.
5. Sven AVR Slim-500. Despite the Chinese origin, the relay device has decent mounting quality and technical characteristics: power 400W, four adjustment levels, input voltage in the range of 140 ... 260 V. Sven is able to operate at temperatures from 0 to 40 ° C. Equipped with a toroidal autotransformer with an overheating sensor. The response time is only 10ms.
6. Calm R600ST. The only electronic stabilizer designed specifically for gas stakes. Thanks to triac switches, the operating voltage ranges from 150 to 275V. Device power - 480W, temperature range - 1 ... 40 ° C, four-stage adjustment, response time is 40 ms. There is a separate circuit for each of the two Euro sockets. Completely silent operation.
7. Bastion Teplocom ST-555. Another model of the relay type, but whose power is an order of magnitude lower - 280 W, and the input voltage is 145 ... 260 V. Also, unlike the Resant brand, Bastion's reaction time is 20 ms, and the number of steps is only three. In addition, the device heats up during operation and there is no automatic fuse in it.

   How to connect the device to the boiler?

Now you need to study the correct connection diagram of the stabilizing device.

First of all, in order to protect your gas boiler, you need a surge protector directly in front of it, and immediately after the incoming automation, a voltage control relay.

As a rule, in places where heating boilers are used, the power supply is transmitted using a two-wire overhead line that is equipped with a TT earthing system. In such a situation, it is necessary to add an RCD with a setting current of up to 30 mA.

This results in the following diagram:

Attention! Both the stabilizer and the gas boiler must be equipped with grounding!

In order to ground the boiler (as well as other electrical appliances), in the TT system it is required to equip a separate ground loop, which is completely isolated from the zero working conductor, as well as from the rest of the network. The resistance of the ground loop is calculated in accordance with the regulations of the Electrical Installation Rules.

Conclusion: which stabilizer for a gas boiler to choose

From all of the above, we can summarize which stabilizing device is best suited for a gas boiler:

• single-phase;
• with a power of 400 W or 30-40% more than the boiler power;
• any type, except for electromechanical, or install an electromechanical device in another room.

For consumers, the main criterion for choosing voltage stabilizers is the price of the product. One at the same cost, you can buy a device that is not suitable for gas equipment at all, or you can purchase a reliable model that will provide decent protection. Therefore, when choosing a stabilizing device, it is necessary to take into account the listed parameters, and not just the price.

Technical characteristics of stabilizers

Stabilizers are built on the basis of an autotransformer or on the basis of an inverter (also called double conversion stabilizers).

In devices with a transformer, the transformer windings are switched using switching elements:

• Thyristors - the fastest response speed, silent operation, durability.
• Relays - average reaction speed, clicks during operation, average service life.
• Servo drives (electromechanical) - low speed, noise (buzzing during operation), short service life.

Attention! Electromechanical stabilizers, despite their shortcomings, provide smooth (without step jumps) voltage regulation. Inverter stabilizers are similar to on-line UPSs, only without batteries: the input AC voltage is rectified and filtered, and then an ideal sine wave with a stable voltage is recreated using transistors or thyristors

These devices provide high-quality and reliable voltage conversion.

Inverter stabilizers are similar to on-line UPSs, only without batteries: the input AC voltage is rectified and filtered, and then an ideal sine wave with a stable voltage is recreated using transistors or thyristors. These devices provide high-quality and reliable voltage conversion.

Input voltage

When choosing a device, pay attention to input voltage range. It shows to what extent the stabilizer copes with its function.

It shows to what extent the stabilizer copes with its function.

When this range is exceeded, the device goes into protection and disconnects the load from the network. Therefore, incorrect selection of this parameter leads to frequent shutdowns of the boiler and poor-quality heating.

Reference. You can find out the range of voltage surges using a voltmeter or multimeter by inserting it into an outlet. The lowest values ​​are observed during the evening load peak (from 18:00 to 23:00), and the highest - at night. After taking measurements, add a certain margin (10-15%) to the results.

Power

The power consumption of gas boilers is small and is in the range of 200-300 watts.But there is one caveat: devices with an electric motor (pumps, valves) at the time of start-up consume 3-4 times more energy for a short time.

Therefore, the rated power of such devices, indicated on the case or in the instructions, is multiplied by at least 3 (ideally - by 5).

A circulation pump can already be built into the boiler, external ones can also be installed.

So that the stabilizer does not go into overload, while turning off the heating equipment, do not forget to increase the pump power by the specified number of times. Then sum up all the powers, add 5-10% - get the required power of the stabilizer.

Important! Sometimes power is indicated in volt-amperes (VA, VA). To get the value in watts, multiply it by 0.8

Stabilization Accuracy

An important characteristic, indicated as a percentage. For gas boilers, an accuracy of at least 4-5% is required, less is better.

The highest accuracy for inverter and electromechanical models. In relay or thyristor, it depends on the number of windings in the transformer.

Do not forget about the speed of operation. It all depends on network conditions.

With long, without sharp jumps, but large in amplitude power supply drops - give preference to an electromechanical or relay stabilizer. Many drops - electronic thyristor.

If welding work is often carried out or many electric motors (machine tools, lawn mowers, etc.) are working nearby, only an inverter one, since no transformer-based stabilizer will smooth out noise interference and distortion of the sinusoid shape. Typical response rates that do not cause interruptions in the operation of the boiler are 30-40 ms.

1 Stihl VoltSaver R1000

This is the best stabilizer in this category, which is optimal for protecting gas boilers and uninterrupted operation of heating systems. The negative impact of mains voltage fluctuations on the connected electronics can be avoided thanks to the built-in filter, which equalizes the input signal at a speed of 350 V / s, while the error is no more than 4%.

Calm VoltSaver R1000 is designed as a desktop model, characterized by instant response and smooth voltage adjustment. This characteristic was achieved thanks to a multi-stage stabilization system. In their reviews, the owners also highly appreciate the additional security complex that turns off powered devices in various emergency situations (short circuit, overheating of wires, etc.). The presence of two outlets at the outlet and more than excess power for the operation of a gas boiler allows you to connect a kitchen TV or other expensive device to the stabilizer.

1 Daewoo Power Products DW-TM1kVA

The best inexpensive gas boiler stabilizer with good specifications is Daewoo Power Products DW-TM1kVA. At an affordable price, it has a high efficiency (95%), decent power (1 kW), a small error (8%), a wide range of voltage drops (140-270 V). The response time is 20 ms, the device has protection against interference, overheating, high voltage and short circuit.

Consumers like the wall-mounted model's small footprint, light weight (only 3.285 kg), stylish design and digital display. The only drawback, many consider a short electric cord.