Uninterrupted power supply for heating boilers. Uninterruptible devices for the boiler - reliable heating. Option # 3: continuous

Russian winters have always been distinguished by their severity - you can't argue with that. Such a winter is a test of any building's strength, including all its systems. If the house is warm and cozy, then there is nothing to worry about, but what if something was not taken into account when setting up the system? Let's check the boiler, the pump - everything works. But if the electricity goes out, everything else goes out. In this case, the way out of the situation will be a UPS for heating boilers.

UPS for heating boilers

What is it for?

Everything is clear here: in order for the boiler to work, an uninterruptible power supply is required. But will this element always be able to solve all the problems? Unfortunately, not always.

If there is no electricity for the same time as it is present, then no UPS for heating boilers will help you. Such a device simply will not have time to charge for correct operation.

There are several more cases when such a device is not needed. However, under standard conditions, it is simply irreplaceable UPS.

So, an uninterruptible power supply is a secondary source of electrical energy. Most consumers experience unwanted power outages for various reasons.

The principle of operation of such a device is based on the initial accumulation of electricity in the batteries, after which it is given off as needed. Note that in such devices all processes are automatic. There is one rule to remember: charging the UPS will take longer than discharging.

If you have a modern gas boiler, then in this case the power supply is needed only for the pump to work and to control the automation module. The total power of such equipment will be about 100-200 W, and this is 1-2 incandescent lamps.

It so happens that electricity goes out for a very short time, no more than half an hour. For such a case, choosing an accumulator for a heating boiler is very simple. At the same time, the cost of the device will not be very high.

How does a UPS work?

So, the composition of such a device as a UPS for a heating boiler includes the following elements:

• The power supply itself.
• one or more 12 volt batteries.

So, in the normal mode, the battery is charged. Further, the alternating voltage is converted to 12 volts and goes to the built-in charger. Also, 220 V power goes to the electrical equipment of the boiler - directly from the network. As the battery is fully charged, a shutdown will occur. Power will continue to flow in transit from the network, passing by the device's automation.

If there is no input current from the mains, then the device will start converting DC voltage of 12 Volts from batteries and AC - 220 V. It will be supplied to the input of the boiler and other consumers connected here.

Thus, on the basis of the above, it can be concluded that the duration of the boiler operation will depend on the total capacity of the batteries, as well as on the power of the boiler electrical equipment.

Choosing a UPS

When you make the choice of such an element as an uninterruptible power supply for a heating boiler, then several aspects should be taken into account. The first is the type of UPS.

The example that we have considered above shows us the features of an off-line UPS. The automatics of such devices will be turned on as soon as the battery needs to be charged or when converting direct to alternating current, when the general network is turned off.

All the rest of the time, the boiler is powered through the transit line, without affecting the automation of the device. That is why, in normal mode, the output voltage will fully correspond to the parameters of the network. If they are not stable, then this is how they enter the boiler. This nuance is just a disadvantage of the devices. But in order for the pump to work well, it is important to ensure stable and strictly defined properties of the current.

UPS for gas heating boilers can also be performed in on-line version. Such devices do not have a transit line.

Regardless of the mode, the voltage is transformed in the double conversion inverter. So, first, an alternating voltage of 220V from the mains is converted into constant 12V. Then - on the contrary, and then goes to the exit.

Such stabilizers for heating boilers always provide a stable voltage that will not depend on the properties at the input. Their cost is slightly higher, however, if there is an unstable voltage, they are able to provide the boiler with electricity with stable parameters.

Battery and charging power

To connect additional batteries, the UPS must be able to connect external batteries. Internal ones will rarely have a capacity of more than 20 A / h, but this is usually not enough.

When you choose batteries for heating and charging boilers, you should be guided by a very simple rule: this ratio of charging current to battery capacity should be 1:10. So, charging with a charge current of 5A can effectively charge a battery that has a capacity of 50A / h.

Digital blocks have automatically regulated chargers, however, they also have a range of charging currents. For example, if a range such as 4.5 - 6.0A is specified, then this will mean that a 45-60A / h battery can be used with such a device. Note that batteries must not be located far from the inverter. This can significantly reduce the current readings.

We calculate the backup power time

If you are thinking about purchasing a voltage stabilizer for a heating boiler, then you should definitely pay attention to such a moment as the maximum time that the boiler can remain operational. This parameter is very important, since this is the main purpose of installing this additional device.

It is worth noting that gas boilers, which have a power of up to 25 kW, usually have one built-in pump. That is why, together with simple electronics, the consumption of such a boiler will be 90-150 watts.

So, taking into account the margin, the power of a device such as a stabilizer for a heating boiler should be 300 watts. From the table above, we can say that in order to ensure the smooth operation of a small boiler, which has a power of 150 W, a 150 A / h battery will be needed for 10 hours.

Uninterrupted system

Voltage stabilizers for heating boilers solve their main task in a heating system - it is to provide electricity to warm equipment for a short period of no voltage in external networks. When there are continuous and prolonged power outages, the UPS should be considered as an auxiliary system that will work in the overall concept of backup power.

Typically, such systems are based on standby generators. Thus, there is no need to install a large and expensive backup power plant for only one boiler. A small unit will be enough, which will work only for the period of switching the automation from the main power supply to the spare.

The cost of the kit depends on the type of UPS. There are three of them: OFF-Line, Line-Interactiv, On-Line. There is no middle ground.
Wrong choice of UPS type can damage the boiler electronics, replacement of which is expensive and always at the wrong time (in winter).

Explanation: Line-Interactiv UPSs are cheaper, but their can be used for gas boilers only in stable power grids. The presence of a voltage stabilizer inside such UPSs is not an advantage - but a disadvantage, since this stabilizer, in fact, is rough and is the reason for the appearance of voltage surges at the output of the UPS, dangerous for gas boilers. These UPSs will only be able to help if there is a power outage. They do not save from interference, sudden power surges. This is described in more detail in our article: contraindications for use with gas boilers. This type of UPS is ideal for solid fuel heating systems. The network can be made stable by installing a thyristor or inverter voltage stabilizer at the entrance to the house or locally in the boiler room.

MODERN, COMPACT WALL-MOUNTED UPS FOR WALL-MOUNTED BOILERS

Development of 2019 - sets of wall-mounted UPS and battery. Space saving, closed system and safety. Production Russia! 2 Years Warranty!

On-Line (double conversion)- complete protection of the boiler against sudden power surges from the mains.

For wall mounted gas boilers- with a power of 90-150 W for up to 5 hours. Depends on the capacity of the connected batteries.

Fanless - silent- no fan - no dust inside. Dust will reduce the lifespan of the UPS and, in combination with moisture, can damage the UPS electronics.

The main thing: they are completed with high-capacity gel-graphene batteries is a new technology for manufacturing batteries, it is a continuation of the AGM line, but with better capacity and characteristics.

In the photo on the left, an example of a compact arrangement together with a wall-mounted battery pack. If a long autonomy time is needed, then a battery of a larger capacity, a larger size, is selected, and the battery is placed on a rack, under the UPS.

Three bonus gifts when buying On-Line UPS with external batteries:

1. Bonus. No UPS is protected on the input side from damage by high-voltage impulse, therefore, since the spring of 2014, due to the increased frequency of damage UPS for gas boilers from indirect lightning strikes into power lines, we supply each sold set (On-Line UPS + Battery) with a separate varistor protection... This saves the UPS input circuits from residual overvoltage. It is much easier to replace this unit with a new one than to take the UPS itself for repair! More serious protection based on electronic control of the input voltage level is also sold in our store.

2. Bonus. We strongly recommend that you come to our store on Vavilova 9A to buy a UPS, during a personal visit, sales consultants demonstrate the operation of your future uninterruptible power supply, teach how to operate it and, most importantly, how to connect it correctly. This is not written in the official instructions, but without this, installation errors are possible! We also complete each UPS with additional instructions, which describe the procedure for correctly connecting the UPS to a phase-dependent gas heating boiler.

3. Bonus. We make sure that during the installation of the UPS, you do not have the need for additional purchases of related accessories (wires, adapters, jumpers). Therefore, we complete between the battery jumpers of the length you need, and if necessary, for some UPS models, with output adapters to euro sockets.

For modern gas boilers, an On-Line UPS is used. In gas boilers there is also a circulation pump and an electronics unit, in the rest (on solid fuel) only a pump, therefore the former are more demanding not only on the availability of power, but also on its quality. And quality can only be achieved with a double conversion UPS (On-Line)
The transition time to the battery in the event of an emergency must be zero! Otherwise, the gas control system may shut down or close the gas valve (if installed).

Kits for boilers based on double conversion UPS (On-Line)

The main selection criterion is the power of the connected load. The task of any UPS in the event of a power outage is to convert the battery voltage into the mains 220 volt. Converting and raising the voltage with 12 volts is more difficult than with 24v or 36v volts. More powerful current power elements and switches are required and, as a consequence, the need for more intensive cooling of the inverter, which reduces the efficiency of the system! The limiting thermal regime reduces the reliability of the system. And reliability in the heating system is the main factor!

For a rough estimate of the capabilities of the kit the photo includes a small plate indicating the operating time of the UPS depending on the load. Only two powers are indicated, this does not mean that this kit can only "pull" 250 watts, for a rough estimate if you need 500 watts, the indicated time for 250 watts is enough to divide by 2.
It is also convenient to compare, let's say you need a time of 9 hours, this time can be achieved with three options, with one large battery, two medium ones, and three small ones. By comparing the three prices, you can make the best choice!

Below are three lines of UPSs with a capacity of up to 800 W and are arranged according to the principle of the number of batteries, how to select the number of batteries in the UPS on the page.

UPS kits up to 800W with two external batteries

• UPS for 24v with two external batteries: - optimal price-reliability-efficiency ratio

  UPS kits up to 900W with three external batteries

  • UPS for 36v with three external batteries: used if you need a long autonomy and at powers over 500 watts.

    UPS kits with one external battery

    • UPS for 12v with one external battery: the main advantage is size, the ability to urgently connect a car battery to discharge. The disadvantage is the price, efficiency, reliability.

      

      If you have installed or plan to install a gas or diesel generator to power the gas boiler and the whole house, then the required autonomy time is reduced to 5-10 minutes. This is enough for a signal to start the generator on a signal from the ATS. In addition, the UPS will act as an intermediate link and smooth out all transients when starting and stopping the generator. Such UPSs do not have external batteries, but internal ones, take up less space and their cost is lower.

      Unlike gas boilers with complex and capricious electronic control systems, solid fuel boilers are not so critical to the quality of power supply, but stopping the circulation pump due to a lack of voltage in the network leads to overheating and (sometimes) to rupture of the heat exchanger tubes. In this case, simpler UPSs are used, but with large batteries.

      

      The theoretical basis for choosing a UPS for a boiler can be we recommend looking at the page how to chooseUPS for boilers... For the 2019-20 season, about 11 models are manufactured in Russia and delivered to Russia from China. ON-Line UPS long autonomy for heating boilers. In green marked are those that are a regular item in our warehouse. You can physically buy a UPS right now, in our store in Moscow, on Leninsky Prospect, or order with TC delivery across Russia.

      Attention! UPS with long autonomy (for boilers) do not contain batteries in their case!

      

      Here is the procedure for accurately calculating the autonomy time, for example, for a wall-mounted gas boiler BAXI... Initial data: passport electric power consumption 110 watt, and it is necessary to ensure uninterrupted power supply from the UPS for a period of 12 hours.

      According to the formula for calculating the capacity of 110W batteries, we multiply by 12 hours, divide by 8.65 = 152.6 a / hour. Round up to 150 ... This is the total capacity of the battery. Because UPSs operate on one or two or three batteries, the resulting total capacity 150 divide by 1 = 150 or 2 = 75 or 3 = 50. Bottom line, we choose a UPS that operates from one battery at 150 a / h or operates from two batteries and to it two batteries 75 A / hour each or a UPS powered by three batteries and to it three batteries of 50 a / h each... 50a / hour no, it means close - 55a / hour... Battery options in the table below. These are not all variants of rechargeable batteries that we have in stock or are available to order.

      Attention! On-Line UPS (uninterruptible power supplies), in addition to 12 volt, use sets of series-connected batteries. This is necessary for the inverter to work. The connecting cables between the batteries are not included in the UPS package! We manufacture cables according to your order and completely free of charge!

      Explanations for the choice of an uninterruptible power supply for the boiler heating system.

      Before the purchase! Our company has been selling UPS for heating boilers for more than 12 years, therefore we have accumulated statistics of customer reviews on the operation of the equipment sold and this allows us to give non-marketing ones. but real recommendations to our future buyers. According to our formulas for calculating the autonomy time and the selection of batteries with exactly the capacity you NEED, we save your budget and WE DO NOT GIVE MYTHICAL PROMISES ON THE DURATION OF THE SOLD UPS!

      Pay attention please: There are two approaches to solving power outage problems. The first approach- installation of line-interactive UPS - they save only from power outages, but cheaper and more economical. Second approach- the use of double conversion UPS - they save from the whole gamut of instability of electrical networks and, in addition, from power outages.

      So which approach to take If you live within the city and your lighting bulbs do not blink, construction works are not carried out nearby, and especially destructive welding works for imported gas boilers, then you can use line-interactive UPS for the boiler. However, if this is a village, with an old transformer overloaded with consumers, if the wiring in the village is airborne (there is a high probability of breaks and phase zero), then undoubtedly it is necessary to choose the second method of protection - this is a double conversion UPS - only they, due to their topology , will not let power surges and high-frequency interference into the output!

      Where can I get information about the electrical power consumption of your boiler equipment? 1.source - these are the official websites of boiler manufacturers: Baxi, Buderus, Vaillant Viessmann, Protherm, Ferroli. Remember, the extra 10-20 watts prescribed for the heating system will cost you an extra 500-1000 rubles when calculating the batteries! 2. If you have installed additional circulation pumps, you must take them into account, because power outages always occur during the coldest times of the season - at times when the number of power consumers is maximum!

      The main components of imported gas boilers requiring protection.

      

      Any modern boiler includes technically sophisticated devices:

      • automation (electronic control board with sensors)
      • circulation pump or a group of pumps controlled by the automation
      • burner, with gas control system
      • gas valve (not in all boilers)
      

      Automation (control board) disable the sudden voltage surges that occur in the electrical network during the operation of a powerful power tool or electric welding. Voltage stabilizers of any manufacturers DO NOT SAVE from power surges, despite the beautiful inscriptions on their boxes like "protection from everything in the world." Read more in the article The Truth About Voltage Stabilizers. These boards are not subject to repair, usually they are completely changed and it is not cheap. The power consumption of the boiler automation is usually in the range of 25 - 45 W.

      

      Circulating pumps - these are small electric motors operating from an alternating voltage of 220 volts, and if your network is not 220, but 180 volts, they begin to overheat from a lack of voltage and if this happens regularly, they jam or the winding burns out. It is easy to change them, they are not expensive, but the boiler will be inactive, and your house will cool down in winter. The power consumption is usually 60-120 watts, and if you have not one, but a group of pumps, then when calculating the autonomy time, you need to add up all the powers. They have almost no starting current, therefore, it is unnecessary to make a large power reserve when choosing a UPS for the boiler.

      
      

      Burner and gas control - will work perfectly only with the correct connection of the Phase, zero and ground. When choosing an uninterruptible power supply, it is desirable that it has a "through zero" or hard neutral. Otherwise, connection problems may occur. You can identify this problem when checking: if, during a trial disconnection of the phase at the input to the UPS, the boiler goes out, then it tries to ignite the gas several times and goes into a power error - it means that either you did not connect the wires correctly, or there is no through zero. The solution to this problem is to install an isolation transformer, which is not very convenient.

      

      Uninterruptible power supplies for boilers are equipment consisting of the inverter itself, a battery or a group of storage batteries. In the event of an emergency power outage, the UPS transforms the 12-volt voltage into 220 V. During a prolonged power outage, the uninterruptible power supply for the heating boiler will supply current to the equipment as long as the resource (capacity) of its battery allows.

      UPS Cost Effectiveness

      As a rule, the equipment of gas boilers, as well as diesel and solid fuel boilers, consumes little electricity. Therefore, using a UPS during a power outage is more beneficial than using diesel or gasoline generators. In addition, uninterruptible power supplies for boilers have the following advantages:

      • easy to install and connect,
      • work silently,
      • do not require operating costs,
      • require minimal maintenance (battery replacement).

      Why does the boiler need a special UPS

      The purchase of special UPSs for heating boilers is necessary due to the complexity of this equipment. In this case, the uninterruptible power supply must provide an output voltage in the form of a sinusoid (this characteristic is indicated in the description of the device). So, UPS for computers, for example, give a meander at the output. This can be a big problem for a heating system, since this type of voltage will have a negative effect on the circulation pumps. As a result, they may not start or they will hum and work in jerks, which will reduce the resource of the equipment. In addition, UPSs for household appliances can provide power to equipment for 10-15 minutes. This time is enough for you to complete the work of all programs, but it is not enough for the boiler.

      Our assortment

      For solid fuel and gas boilers, you can buy a UPS in this section of the site. We offer devices of the Russian company "Energia". This company occupies a leading position in the production of electrical equipment and produces reliable UPS with a long service life. Depending on the capacity of the accumulator and the power of the load, they can provide 1–24 hours of autonomous power supply to the boiler. Our catalog contains:

      inverters that stabilize the mains voltage and convert the voltage from DC (12, 24, 48 V) to AC from an external source (for example, a battery).

      UPS with external batteries. The complete assembly of an uninterruptible power supply for a heating boiler is an automated kit that includes an inverter, a charger, a control unit and a battery. Such equipment is able not only to operate during an emergency power outage, but also to stabilize the voltage in the network. UPSs with an external battery are able to maintain the operation of heating equipment for much longer. The purchase of uninterruptible power supplies for a gas boiler justifies itself with frequent power outages, as well as a constant need for hot water (for example, in a house with small children).

      Inverter classification

      By type of work

      • Online. In such uninterruptible power supplies for gas boilers, the alternating voltage is transformed into constant voltage, and then vice versa, so that a clean and stable sinusoid is obtained at the output. These UPSs are characterized by short transfer times to battery and high voltage standard. Uninterruptible power supplies from this type are the most expensive. But they also have disadvantages. So, due to the constant access of the device to the battery, its service life is reduced. The capacity of the built-in battery is also limited by the dimensions of the device case.
      • Line-Interactive. Such UPSs for gas boilers have an autotransformer that regulates the input voltage in a wide range. Line-interactive uninterruptible power supplies are mid-priced and best suited for domestic use. Our catalog mainly contains UPS models of this type. Their advantages include the ability to increase battery life by adding additional batteries to the circuit. The devices' batteries are automatically charged to ensure that they are fully operational in the event of an unexpected power outage.
      • Offline. Such uninterruptible power supplies are the simplest and cheapest. They do not have a built-in stabilizer and switch to the battery as soon as the mains voltage deviates from the set values. In addition to this disadvantage, such UPSs also exhibit a relatively high delay in relay switching.

      By installation method

      • Wall mounted. These UPSs are small in size The design of the uninterruptible power supplies allows you to connect to them an external battery that is installed separately.
      • Outdoor. Such uninterruptible devices for gas boilers can be low-power and powerful. In both cases, the battery life depends on the capacity of the batteries connected to them. Such UPSs are designed for any load within the limits of their capacity and can maintain the operation of the heating system for a long time.

      UPS selection criteria

      Power. This parameter can be determined by adding up the power of all devices that will be powered by an uninterruptible power supply. This is the gas boiler itself, circulation pumps, etc. It should be borne in mind that at the moment of starting the equipment, the current consumption may increase several times. To calculate how much power a suitable UPS for gas boilers should have, you need to multiply the power of each pump by three and add the values ​​obtained.

      Battery life. This indicator determines the period during which an uninterruptible boiler for the boiler will ensure the operation of electrical equipment. If a generator is available, the UPS for gas boilers must keep the equipment running until it starts up. The battery life is determined by the capacity of the battery. This parameter is indicated in the technical documentation. But in some cases, it may differ from the declared one due to the coefficient of the depth of discharge and the efficiency of the converter. You can perform a simple calculation to determine whether an uninterruptible power supply is suitable for your gas boiler or not, using the following formula:

      C = (T x P) / (8.65 x N),

      • C is the battery capacity;
      • T is the required battery life, measured in hours;
      • P is the total power consumed by the equipment connected to the UPS, measured in watts;
      • N - the number of batteries that are included in the system of your chosen UPS;
      • 8.65 - constant (constant value).

      To buy the required UPS model for gas boilers or solid fuel models, use the order form on the website or contact our consultants.

      Single-phase UPSs of the SW and ST series with an output power from 500 VA to 3 kVA are designed to provide reliable and continuous power supply to the automation of gas boilers and circulation pumps during power outages and unstable mains voltage.

      In the online UPS models of the Russian manufacturer Shtil Group of Companies, the technology of double conversion of electricity is used, due to which the power supply of gas boilers with an alternating voltage of an ideal sinusoidal shape and maximum accuracy is provided. The UPSs have improved technical characteristics that fulfill the essential requirements for the correct operation of boilers and auxiliary equipment. In addition, the devices have ample opportunities for scaling the battery life, remote monitoring and control.

      Advantages of the online UPS "Shtil" for gas boilers:

      • instantaneous continuous switching of the load power supply to the storage batteries (0 ms);
      • power supply of the boiler with a stabilized voltage with an ideal sine wave and high accuracy (± 2%);
      • neutral for high-quality operation of the flame sensor in phase-dependent boilers;
      • quality work from gasoline / diesel generators;
      • absolutely silent operation in models up to 1000 VA;
      • a comprehensive protection system with auto-recovery after the cause of the accident has been eliminated;
      • wide range of accessories for external battery storage and monitoring.

      Features of UPS "Shtil" for gas boilers

      • Convenient wall mounting of the SW series UPS and battery modules to them allows the devices to be located next to the boiler.
      • Maximum performance is ensured by a high power factor (PF = 0.9).
      • The "By-pass" function ensures continuous operation of the load in the event of a UPS failure or overload.
      • EMI / RFI filtering by input and output EMI / RFI filters.
      • Cooling by means of low-noise fans with smooth and intelligent operation control (in models from 1000 VA).
      • Self-diagnosis of the device at startup and during operation.
      • LCD display with an informative interface showing the status of the network, the power of the connected load, the status of the battery and other important information.
      • The metal case protects the device from mechanical stress and provides better protection in terms of fire safety.

      Criteria for choosing the UPS "Calm" for the boiler

      Please note that not only the boiler itself, but also the adjacent equipment, including circulation pumps, must be protected from voltage surges in the network. Therefore, in the model range of Shtil Group of Companies, solutions with a capacity of up to 3 kVA are presented:

      • wall-mounted (500-1000 VA);
      • with floor standing (1-3 kVA).

      In addition, we take into account the fact that in different situations, different indicators for autonomous work may be required. Our company manufactures UPS for gas boilers in the following configurations:

      • with built-in battery and low-power charger for autonomous operation for a short period of time;
      • without built-in rechargeable batteries, but with a high-power charger providing autonomous operation for a long time from external batteries.

      We also offer UPS for boilers. You can choose the required option yourself - using the provided tables of backup work, or consult the employees of Shtil Group of Companies - all recommendations are provided free of charge.

      NEW: Modern, super compact 2019 system.

      The difference between the system and the "traditional" kits:

      • Fully wall mount and UPS and battery pack - saves space.
      • Modern UPS circuitry works without a fan - complete silence at work.
      • The fanless circuit not only provides silence - it increase the service life of the UPS, because dust does not enter the UPS cabinet. And dust is the main enemy of On-Line UPS.
      • On-Line UPS Calm is "two in one": high-precision voltage stabilization and boiler power supply in case of failure on the input line.
      • On-Line UPS transfers to battery power instantly - transit time 0 m sec. This is important for gas control.
      • The battery pack consists of two graphene gel accumulators are the most advanced technologies, allow in a small size to achieve a larger capacity than "traditional" AGM batteries.
      • To increase the autonomy time, it is possible to connect a second battery pack.
      • The batteries are closed in a drawer, ensuring operational safety.
      • Developed and UPS manufactured in the Russian Federation, 2 years warranty, service support all over the country!

      More information about the cost, equipment, availability on the page: wall-mounted UPS for boilers with a capacity of 100-150 W.

      Further: this main section of the site contains the most popular and trustworthy by the criterion of "quality" uninterruptible power supplies for boilers. Heating boilers are gas and solid fuel, so we recommend that you familiarize yourself with the UPS before choosing the UPS that suits you. with basic principles ... On our website, articles are published that help to make the right choice of equipment, as well as recommendations on how and where to install the UPS, the service life and correct operation of the UPS set with batteries. For the convenience of choosing, use filters by the type of UPS, the number of batteries (if you are limited in size) and, most importantly, by power.

      the process of selecting a UPS for the boiler can be divided into two stages:
      

      1. selection of the "head" - and the smarter it is, the higher the boiler protection level. (you need to know the power of the boiler and pumps)
      

      2. calculation of the capacity of external batteries - the autonomy time depends on this. (the time during which the UPS will keep power to the boiler in the event of a power outage).
      

      We have automated this process, and in the window below you can get in a visual form the options for the kits that correspond to the specified conditions, for this you need to enter the power and the desired time. By changing the time value, you can choose kits that suit your budget and size. Please note that the options shown can be with one or more external batteries, the price includes the required number of batteries and wires for them.