The most popular heat sources for autonomous heating systems are gas boilers.
However, many users are switching to electric heating of their homes.
This option does not require additional energy sources, only a connection to the power supply is required. Most users believe that using electricity for heating is too expensive.
This is not entirely true, especially since the operation of the system is seasonal.
Let's look at units from one of the leading European companies - electric boilers Protherm
Types of devices
Protherm is part of the Vaillant Group, which significantly strengthens its position among its competitors.
The company's main products are gas boilers; electric units occupy a relatively small part of the product range . However, this in no way affects the build quality or the design capabilities of the boilers.
The Protherm company produces wall-mounted single-circuit heating units designed for the preparation of coolant in heating systems.
It is possible to power radiator circuits or underfloor heating systems . The boiler power is in the range of 6-28 kW. When choosing, calculate 1 kW per 10 sq. m. area. Thus, Protherm Skat boilers can heat rooms measuring 60-280 square meters. m.
NOTE!
All units have the ability to connect an external storage boiler, which allows you to provide the house with hot water.
Tiger wall-mounted heating boilers
A popular model among property owners is the Proterm Tiger wall-mounted gas boiler. The power of this heating device can range from 3.5 to 23 kilowatts.
All Tiger units are reliable and economical, and they were developed taking into account the latest trends in the field of technical solutions and design. They comply with current requirements and regulations regarding heating systems.
The devices are equipped with a 25-liter boiler, which has a unique “Spin” system and a temperature sensor responsible for hot water supply. Thanks to this feature, boiler buyers acquire efficiently and quickly operating equipment and the opportunity to have constantly heated water.
Technical features of Tiger boilers are as follows:
- the device is equipped with reliable protection against sub-zero temperatures;
- the presence of a special electronic device allows you to read data regarding the pressure level in the system;
- the unit can be installed in the bathroom;
- you need to separately configure the parameters of DHW and heat supply;
- there is a smooth adjustment of the power level;
- there is protection against overheating;
- presence of a built-in microprocessor;
- the main parameters of the work process are displayed on a special display;
- There is a protection function for pumping equipment that can prevent jamming.
The cost of the Tiger boiler depends on the specific model of this heating device.
Model series
The range of electric boilers from Protherm is represented by one model line Skat.
It is noteworthy that all series of the company’s boilers are named after certain animals. For example, gas wall-mounted boilers are a “cat” series (Lynx, Tiger, Panther, Cheetah, etc.).
The Skat series includes the following models:
- Protherm Skat 6 KR 13 6 kW;
- Protherm Skat 9 KR 13 9 kW;
- Protherm Skat 12 KR 13 12 kW;
- Protherm Skat 14 KR 13 14 kW;
- Protherm Skat 18 KR 13 18 kW;
- Protherm Skat 21 KR 13 21 kW;
- Protherm Skat 24 KR 13 24 kW;
- Protherm Skat 28 KR 13 28 kW.
All boilers are powered from a three-phase network with a voltage of 380 V. The exceptions are models with a power of 6 and 9 kW, capable of operating from a single-phase 220 V network.
The units are adapted to work in Russia and the former CIS countries. They calmly tolerate voltage fluctuations or changes in water pressure. However, all these influences create an undesirable load on the boiler components, causing premature failure of the unit.
Therefore, it is strongly recommended to use voltage stabilizers and water filters to keep the boiler in working condition for as long as possible.
IMPORTANT!
In 2021, the series was replenished with a new model Protherm Skat RAY 12 KE /14 12 kW, which introduced some improvements in the layout of components and increased build quality.
Advantages and disadvantages
Advantages:
- single-circuit models are simple and do not have unnecessary additions. This increases their reliability and durability;
- wide choice of parameters. There are power options that are optimally suited for a given room;
- high efficiency of units (99.5%);
- during operation, the equipment does not make any sounds and does not disturb the peace of the residents of the house;
- regulation and setting of room temperature are accurate and stable;
- there are models capable of operating from both three-phase and single-phase power supply networks (power 6 and 9 kW);
- installation is possible without the involvement of specialists.
Flaws:
- excessively high cost;
- high energy consumption;
- boilers create a load on the power supply system.
The disadvantages of the units are not considered critical. This confirms the constantly growing demand for all models of Protherm Skat electric boilers.
Equithermal mode Setting the equithermal mode, t….
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Equithermal mode
Setting the equithermal mode, i.e. selection of the inclination angle of the equithermal curve “E” and its parallel offset
“P” is only possible if an external temperature sensor is connected to the boiler. Note:
If there is no external temperature sensor, the boiler will not allow the user to enter the mode for setting parameters E and P.
Setting the slope of the curve
Press the MODE button until parameter “E” appears on the display. Simultaneously in the upper left
corner the diode blinks. Using a button
set the desired curve slope from E1 to E9 and confirm your choice by pressing the MODE button. The required coolant temperature at the boiler outlet is adjusted depending on the external temperature and the corresponding curve setting (Fig. 2). If you select the “E-” parameter, the equithermal mode will be turned off.
Parallel curve offset
Press the MODE button until the parameter “P” appears on the display. In this case, the diode in the upper left corner of the display
will start flashing. Using the button
,
set the curve offset with a value from P1 to P9 and confirm the selected value by pressing the MODE button. Parallel characteristic offset value: P1 – offset by -15 °C P2 – offset by -9 °C P3 – offset by -6 °C P4 – offset by -3 °C P5 – offset by +3 °C P6 – offset by + 6 °C P7 – offset by +9 °C P8 – offset by +15 °C P9 – offset by +21 °CP– – no offset
Rice. 2
Curve steepness
Rice. 3
Parallel curve offset
The coolant temperature, according to the pre-selected characteristic, will increase (P5 - P9) or decrease (P1 - P4) by the specified offset or remain unchanged (P-).
TOP 8 electric boilers Protherm
Let's look at the features and parameters of the main models of Protherm electric boilers:
Skat 12 KE /14 12 kW
An electric single-circuit boiler designed to heat the coolant of a radiator heating system, underfloor heating system or a combined type of home heating.
Designed to work in rooms of 100-120 sq.m.
Main characteristics of the boiler:
- type, principle of heating the coolant - electric boiler, heating element;
- power - 12 kW;
- Efficiency - 99.5%;
- number of circuits - one (it is possible to connect an external boiler for DHW supply);
- type of installation - wall;
- number of heating stages - 2;
- type of power supply - three-phase 380 V;
- current (max) - 18.5 A;
- expansion tank volume - 8 l;
- coolant temperature - 25°-85°;
- dimensions - 410x740x315 mm;
- weight - 24 kg;
Advantages:
- reliability,
- the presence of multi-stage protection,
- compact and elegant body;
Flaws:
- high price,
- the need for a three-phase connection to the network.
Skat 14 KR 13 14 kW
of efficiently heating rooms up to 140 sq.m. It has multi-stage fault protection and smooth power control.
Boiler parameters:
- type, principle of heating the coolant - electric boiler, heating element;
- power - 14 kW;
- Efficiency - 99%;
- number of circuits - one (it is possible to connect an external boiler for DHW supply);
- type of installation - wall;
- number of heating stages - 6;
- type of power supply - three-phase 380 V;
- current (max) - 23 A;
- expansion tank volume - 7 l;
- coolant temperature - 25°-85°;
- dimensions - 410x740x315 mm;
- weight - 34 kg;
Advantages:
- multi-stage protection against malfunctions;
- long warranty period (900 days);
- it is possible to connect external control of the operating mode;
Flaws:
- relatively high cost,
- the need to stabilize the boiler power supply.
Skat 28 KR 13 28 kW
The most powerful model in the line. Designed for heating residential or public premises up to 280 sq.m. Capable of long-term operation (service life declared by the manufacturer is 10 years).
Specifications:
- type, principle of heating the coolant - electric boiler, heating element;
- power - 28 kW;
- Efficiency - 99%;
- number of circuits - one (it is possible to connect an external boiler for DHW supply);
- type of installation - wall;
- number of heating stages - 6;
- type of power supply - three-phase 380 V;
- current (max) - 50 A;
- expansion tank volume - 7 l;
- coolant temperature - 25°-85°;
- dimensions - 410x740x315 mm;
- weight - 34 kg;
Advantages:
- high power,
- stable and uninterrupted operation,
- it is possible to connect an external heater to provide domestic hot water;
Flaws:
- high price,
- heavy load on the network.
Skat 21 KR 13 21 kW
Electric heating unit capable of serving areas from 190 to 210 sq.m. It is one of the three most powerful units in the model line, but this does not affect the size of the case.
Unit parameters:
- type, principle of heating the coolant - electric boiler, heating element;
- power - 21 kW;
- Efficiency - 99.5%;
- number of circuits - one (it is possible to connect an external boiler for DHW supply);
- type of installation - wall;
- number of heating stages - 4;
- type of power supply - three-phase 380 V;
- current (max) - 40 A;
- expansion tank volume - 8 l;
- coolant temperature - 25°-85°;
- dimensions - 410x740x315 mm;
- weight - 34 kg;
Advantages:
- Ease of Management,
- reliability in operation,
- stable maintenance of room temperature;
Flaws:
- three-phase power supply required,
- high power consumption.
Skat 9 KE /14 9 kW
Electric heating boiler designed to operate in rooms up to 90 sq.m. The model is an updated version of the Protherm Skat 9 KR 13 9 kW unit.
Main characteristics of the unit:
- type, principle of heating the coolant - electric boiler, heating element;
- power - 9 kW;
- Efficiency - 99.5%;
- number of circuits - one (it is possible to connect an external boiler for DHW supply);
- type of installation - wall;
- number of heating stages - 2;
- type of power supply - three-phase 380 V or single-phase 220 V;;
- current (max) - 14 A;
- expansion tank volume - 8 l;
- coolant temperature - 25°-85°;
- dimensions - 410x740x315 mm;
- weight - 24 kg;
Advantages:
- a universal model capable of receiving energy from both three-phase and single-phase power supply networks,
- reliability,
- stability of work;
Flaws:
- with relatively low power, the model has a price almost like the most powerful unit in the line.
Skat 12 KR 13 12 kW
An electric heating boiler designed for heating coolant in heating systems of various types . Designed to work in apartments, houses or public spaces up to 120 sq.m.
Its technical data:
- type, principle of heating the coolant - electric boiler, heating element;
- power - 12 kW;
- Efficiency - 99%;
- number of circuits - one (it is possible to connect an external boiler for DHW supply);
- type of installation - wall;
- number of heating stages - 6;
- type of power supply - three-phase 380 V;
- current (max) - 18.5 A;
- expansion tank volume - 7 l;
- coolant temperature - 25°-85°;
- dimensions - 410x740x315 mm;
- weight - 34 kg;
Advantages:
- simplicity, intuitive operating mode control,
- possibility of independent installation and connection;
Flaws:
- high price,
- high energy consumption.
Skat 6 KR 13 6 kW
The lowest-power unit in the model line . It has a universal type of power supply - can be connected to a three- and single-phase network. Designed to heat an area of up to 60 square meters. m., which makes it the most successful option for heating apartments.
Options:
- type, principle of heating the coolant - electric boiler, heating element;
- power - 6 kW;
- Efficiency - 99%;
- number of circuits - one (it is possible to connect an external boiler for DHW supply);
- type of installation - wall;
- number of heating stages - 6;
- type of power supply - three-phase 380 V or single-phase 220 V;;
- current (max) - 28 A (with single-phase connection) or 9.5 A (with three-phase power supply);
- expansion tank volume - 7 l;
- coolant temperature - 25°-85°;
- dimensions - 410x740x315 mm;
- weight - 34 kg;
Advantages:
- possibility of power supply from a single-phase network,
- The warranty period is 900 days;
Flaws:
- high cost of the boiler,
- heavy load on the network.
Skat 9 KR 13 9 kW
An electric boiler designed to supply coolant to a heating system (radiator, heated floor or mixed), can operate in rooms up to 90 square meters. m.
Boiler characteristics:
- type, principle of heating the coolant - electric boiler, heating element;
- power - 9 kW;
- Efficiency - 99%;
- number of circuits - one (it is possible to connect an external boiler for DHW supply);
- type of installation - wall;
- number of heating stages - 9;
- type of power supply - three-phase 380 V or single-phase 220 V;;
- current (max) - 39 A (1F) or 14 A (3F);
- expansion tank volume - 7 l;
- coolant temperature - 25°-85°;
- dimensions - 410x740x315 mm;
- weight - 34 kg;
Advantages:
- a popular model for city apartment owners,
- reliability in operation,
- possibility of power supply from a single-phase network;
Flaws:
- expensive boiler,
- puts an excessive load on the power supply system,
- with a single-phase connection it creates a noticeable phase imbalance.
How to connect and configure
Basic conditions for installing gas heating equipment from:
- installation of the boiler and the necessary auxiliary equipment is carried out in accordance with the design documentation, taking into account the requirements of SNiP and the manufacturer’s recommendations;
- installation of equipment is carried out in a room specially designed for these purposes, and in case of special modification of the unit - exclusively in well-ventilated outbuildings;
- the installation and commissioning process is carried out by specialists who have completed a training course in the installation and maintenance of gas equipment;
- any boiler malfunctions are repaired by a service organization authorized by the manufacturer of heating and water heating equipment;
- independent installation work entails deprivation of the consumer's warranty on the unit and its repair;
- When unpacking heating equipment, the supplied boiler must be checked for completeness and compliance with the type of fuel used.
Before proceeding with installation, you must carefully read the instructions supplied with the gas boiler, and during the installation process all recommendations given in the accompanying documents must be followed. Markings on equipment must not be damaged or removed.
Standard technology for connecting and setting up a gas boiler:
- the unit is fixed to the wall using screws with appropriate spacers;
- connection pipes should not be loaded with a pipe heating system, hot water supply system or gas supply elements;
- the installation size of the tube connections, including their height and the required distance from inlet to outlet, must be strictly observed;
- the hydraulic group is placed on the lower part of the gas equipment, and the system is necessarily equipped with a filler valve and safety relief valves;
- when the maximum pressure inside the system is exceeded, steam or water is released from the safety valve;
- connecting the unit to the heating system presupposes the ability to carry out the full scope of maintenance and repair work;
- water is delivered to the heating system via a filling valve, and a drain device is used to reduce pressure or partially drain the coolant;
- special outlets installed in designated areas of the heating system have full drain and fill functions;
- the pressure of hot water supply to the equipment must exceed similar indicators in the heating system;
- in the “Filling” tap position (hydraulic group), the operation of the system must be monitored using a boiler pressure gauge;
- The valve opens counterclockwise and closes strictly clockwise.
Boiler equipment maintenance items covered by the warranty do not include activities such as deaeration and adjustment of the expansion tank.
