ESPRO series boiler
Power: from 6 kW to 18 kW
Voltage: 380 V
Max water temperature: 80 ° C
Boilers of the ESPRO series – have an integrated circulation pump with frequency regulation with energy-efficient characteristics, which reduces energy consumption. The ESPRO series are boilers designed as a universal heat source for heating residential and office premises. Electric boilers of the ESPRO series have an efficiency of 99%, due to this, high efficiency of using such equipment is achieved.

Stylish design solution, touchpad and WI-FI module for easy operation
On the front of the case is a touch screen for control. It has a high level of response and simplifies interaction with an electric boiler.
The screen displays the current temperature state of the selected heat sensor. The control plate is located in a separate compartment and is protected by an additional insulating layer.
App Regulation
Regulation using mobile application
You will be able to control all the functions of the boiler through the mobile application. Now you do not need to go down to the basement or go to the bathroom to adjust the temperature of the boiler. Everything is already at your fingertips.
- Simple login: only phone and name
- Intuitive program design
- Works on iOS and Android
- Modern data exchange protocol between the boiler and the smartphone MQTT


Distinctive characteristics of a series:
Energy efficient pump with frequency control
Wilo para 15/6-43/sc
Heating elements and flask made of stainless steel
We use European quality AISI 304 steel. Stainless elements extend the life of the product

Specifications
Parameter description | ESPRO-4,5 |
Power consumption, kW | 4,5 |
Useful power, kW | 4,5 |
Coefficient of performance, % | 99 |
Electrical network, V, ±10% | 380 (1х220) / N / PE / 50Гц |
Rated voltage (max), A, ±10% | 3 х 7 / 1 х 20,5 |
Rated circuit breaker voltage, А | 3 х 10 / 1 х 25 |
Cable cross section mm2 Copper, CU | 5 х 1,5 / 3 х 4 |
Cable cross section mm2 Aluminum, AL | 5 х 2,5 / 3 х 6 |
Working pressure in the boiler, MPa | 0,5 – 1,5 |
Maximum pressure in the boiler, MPa | 3,0 |
Water temperature control in the boiler, 0С | Electronic, from + 30 to + 80 |
The maximum water temperature in the boiler, 0С | + 80 |
Indoor air temperature control, 0С | Electronic, from + 10 to + 40 |
Water temperature control in the hot water tank, 0С | Electronic, from + 30 to + 60 |
Circulation pump | WILO Para 15/6 |
Pump power, W | 3 – 43 |
Temperature of operation of the emergency overheat thermostat, 0С | + 105 |
Minimum water flow through the boiler, l / min | 3,7 |
The volume of the expansion tank, l | 6 |
Overall dimensions, mm, no more | |
width mm | 375 |
depth mm | 248 |
height mm | 744 |
Weight, kg, no more | 23 |
The size of connecting branch pipes: | |
– Return cold water inlet | G 3/4″ |
– Heated water output, supply | G 3/4″ |
Degree of protection | IP30 |
Parameter description | ESPRO-6 |
Power consumption, kW | 6 |
Useful power, kW | 6 |
Coefficient of performance, % | 99 |
Electrical network, V, ±10% | 380 (1х220) / N / PE / 50Гц |
Rated voltage (max), A, ±10% | 3 х 9 / 1 х 27 |
Rated circuit breaker voltage, А | 3 х 16 / 1 х 32 |
Cable cross section mm2 Copper, CU | 5 x 2 / 3 х 4 |
Cable cross section mm2 Aluminum, AL | 5 х 2,5 / 3 х 10 |
Working pressure in the boiler, MPa | 0,5 – 1,5 |
Maximum pressure in the boiler, MPa | 3,0 |
Water temperature control in the boiler, 0С | Electronic, from + 30 to + 80 |
The maximum water temperature in the boiler, 0С | + 80 |
Indoor air temperature control, 0С | Electronic, from + 10 to + 40 |
Water temperature control in the hot water tank, 0С | Electronic, from + 30 to + 60 |
Circulation pump | WILO Para 15/6 |
Pump power, W | 3 – 43 |
Temperature of operation of the emergency overheat thermostat, 0С | + 105 |
Minimum water flow through the boiler, l / min | 3,7 |
The volume of the expansion tank, l | 6 |
Overall dimensions, mm, no more | |
width mm | 375 |
depth mm | 248 |
height mm | 744 |
Weight, kg, no more | 23 |
The size of connecting branch pipes: | |
– Return cold water inlet | G 3/4″ |
– Heated water output, supply | G 3/4″ |
Degree of protection | IP30 |
Parameter description | ESPRO-7,5 |
Power consumption, kW | 7,5 |
Useful power, kW | 7,5 |
Coefficient of performance, % | 99 |
Electrical network, V, ±10% | 380 (1х220) / N / PE / 50Гц |
Rated voltage (max), A, ±10% | 3 х 11 / 1 х 34 |
Rated circuit breaker voltage, А | 3 х 16 / 1 х 40 |
Cable cross section mm2 Copper, CU | 5 x 2,5 / 3 х 6 |
Cable cross section mm2 Aluminum, AL | 3 х 10 / 5 х 4,0 |
Working pressure in the boiler, MPa | 0,5 – 1,5 |
Maximum pressure in the boiler, MPa | 3,0 |
Water temperature control in the boiler, 0С | Electronic, from + 30 to + 80 |
The maximum water temperature in the boiler, 0С | + 80 |
Indoor air temperature control, 0С | Electronic, from + 10 to + 40 |
Water temperature control in the hot water tank, 0С | Electronic, from + 30 to + 60 |
Circulation pump | WILO Para 15/6 |
Pump power, W | 3 – 43 |
Temperature of operation of the emergency overheat thermostat, 0С | + 105 |
Minimum water flow through the boiler, l / min | 3,7 |
The volume of the expansion tank, l | 6 |
Overall dimensions, mm, no more | |
width mm | 375 |
depth mm | 248 |
height mm | 744 |
Weight, kg, no more | 24 |
The size of connecting branch pipes: | |
– Return cold water inlet | G 3/4″ |
– Heated water output, supply | G 3/4″ |
Degree of protection | IP30 |
Parameter description | ESPRO-9 |
Power consumption, kW | 9 |
Useful power, kW | 9 |
Coefficient of performance, % | 99 |
Electrical network, V, ±10% | 380 / N / PE / 50Гц |
Rated voltage (max), A, ±10% | 3 х 13 |
Rated circuit breaker voltage, А | 3 х 16 |
Cable cross section mm2 Copper, CU | 5 x 2,5 |
Cable cross section mm2 Aluminum, AL | 5 х 4 |
Working pressure in the boiler, MPa | 0,5 – 1,5 |
Maximum pressure in the boiler, MPa | 3,0 |
Water temperature control in the boiler, 0С | Electronic, from + 30 to + 80 |
The maximum water temperature in the boiler, 0С | + 80 |
Indoor air temperature control, 0С | Electronic, from + 10 to + 40 |
Water temperature control in the hot water tank, 0С | Electronic, from + 30 to + 60 |
Circulation pump | WILO Para 15/6 |
Pump power, W | 3 – 43 |
Temperature of operation of the emergency overheat thermostat, 0С | + 105 |
Minimum water flow through the boiler, l / min | 3,7 |
The volume of the expansion tank, l | 6 |
Overall dimensions, mm, no more | |
width mm | 375 |
depth mm | 248 |
height mm | 744 |
Weight, kg, no more | 24 |
The size of connecting branch pipes: | |
– Return cold water inlet | G 3/4″ |
– Heated water output, supply | G 3/4″ |
Degree of protection | IP30 |
Parameter description | ESPRO-12 |
Power consumption, kW | 12 |
Useful power, kW | 12 |
Coefficient of performance, % | 99 |
Electrical network, V, ±10% | 380 / N / PE / 50Гц |
Rated voltage (max), A, ±10% | 3 х 17,5 |
Rated circuit breaker voltage, А | 3 х 20 |
Cable cross section mm2 Copper, CU | 5 х 4 |
Cable cross section mm2 Aluminum, AL | 5 х 6 |
Working pressure in the boiler, MPa | 0,5 – 1,5 |
Maximum pressure in the boiler, MPa | 3,0 |
Water temperature control in the boiler, 0С | Electronic, from + 30 to + 80 |
The maximum water temperature in the boiler, 0С | + 80 |
Indoor air temperature control, 0С | Electronic, from + 10 to + 40 |
Water temperature control in the hot water tank, 0С | Electronic, from + 30 to + 60 |
Circulation pump | WILO Para 15/6 |
Pump power, W | 3 – 43 |
Temperature of operation of the emergency overheat thermostat, 0С | + 105 |
Minimum water flow through the boiler, l / min | 3,7 |
The volume of the expansion tank, l | 6 |
Overall dimensions, mm, no more | |
width mm | 375 |
depth mm | 248 |
height mm | 744 |
Weight, kg, no more | 24 |
The size of connecting branch pipes: | |
– Return cold water inlet | G 3/4″ |
– Heated water output, supply | G 3/4″ |
Degree of protection | IP30 |
Parameter description | ESPRO-15 |
Power consumption, kW | 15 |
Useful power, kW | 15 |
Coefficient of performance, % | 99 |
Electrical network, V, ±10% | 380 / N / PE / 50Гц |
Rated voltage (max), A, ±10% | 3 х 22 |
Rated circuit breaker voltage, А | 3 х 25 |
Cable cross section mm2 Copper, CU | 5 x 6 |
Cable cross section mm2 Aluminum, AL | 5 х 8 |
Working pressure in the boiler, MPa | 0,5 – 1,5 |
Maximum pressure in the boiler, MPa | 3,0 |
Water temperature control in the boiler, 0С | Electronic, from + 30 to + 80 |
The maximum water temperature in the boiler, 0С | + 80 |
Indoor air temperature control, 0С | Electronic, from + 10 to + 40 |
Water temperature control in the hot water tank, 0С | Electronic, from + 30 to + 60 |
Circulation pump | WILO Para 15/6 |
Pump power, W | 3 – 43 |
Temperature of operation of the emergency overheat thermostat, 0С | + 105 |
Minimum water flow through the boiler, l / min | 3,7 |
The volume of the expansion tank, l | 6 |
Overall dimensions, mm, no more | |
width mm | 375 |
depth mm | 248 |
height mm | 744 |
Weight, kg, no more | 24 |
The size of connecting branch pipes: | |
– Return cold water inlet | G 3/4″ |
– Heated water output, supply | G 3/4″ |
Degree of protection | IP30 |
Parameter description | ESPRO-18 |
Power consumption, kW | 18 |
Useful power, kW | 18 |
Coefficient of performance, % | 99 |
Electrical network, V, ±10% | 380 / N / PE / 50Гц |
Rated voltage (max), A, ±10% | 3 х 26 |
Rated circuit breaker voltage, А | 3 х 32 |
Cable cross section mm2 Copper, CU | 5 x 6 |
Cable cross section mm2 Aluminum, AL | 5 х 10 |
Working pressure in the boiler, MPa | 0,5 – 1,5 |
Maximum pressure in the boiler, MPa | 3,0 |
Water temperature control in the boiler, 0С | Electronic, from + 30 to + 80 |
The maximum water temperature in the boiler, 0С | + 80 |
Indoor air temperature control, 0С | Electronic, from + 10 to + 40 |
Water temperature control in the hot water tank, 0С | Electronic, from + 30 to + 60 |
Circulation pump | WILO Para 15/6 |
Pump power, W | 3 – 43 |
Temperature of operation of the emergency overheat thermostat, 0С | + 105 |
Minimum water flow through the boiler, l / min | 3,7 |
The volume of the expansion tank, l | 6 |
Overall dimensions, mm, no more | |
width mm | 375 |
depth mm | 248 |
height mm | 744 |
Weight, kg, no more | 24 |
The size of connecting branch pipes: | |
– Return cold water inlet | G 3/4″ |
– Heated water output, supply | G 3/4″ |
Degree of protection | IP30 |
Parameter description | ESPRO-21 |
Power consumption, kW | 21 |
Useful power, kW | 21 |
Coefficient of performance, % | 99 |
Electrical network, V, ±10% | 380 / N / PE / 50Гц |
Rated voltage (max), A, ±10% | 3 х 31 |
Rated circuit breaker voltage, А | 3 х 40 |
Cable cross section mm2 Copper, CU | 5 x 6 |
Cable cross section mm2 Aluminum, AL | 5 х 10 |
Working pressure in the boiler, MPa | 0,5 – 1,5 |
Maximum pressure in the boiler, MPa | 3,0 |
Water temperature control in the boiler, 0С | Electronic, from + 30 to + 80 |
The maximum water temperature in the boiler, 0С | + 80 |
Indoor air temperature control, 0С | Electronic, from + 10 to + 40 |
Water temperature control in the hot water tank, 0С | Electronic, from + 30 to + 60 |
Circulation pump | WILO Para 15/6 |
Pump power, W | 3 – 43 |
Temperature of operation of the emergency overheat thermostat, 0С | + 105 |
Minimum water flow through the boiler, l / min | 3,7 |
The volume of the expansion tank, l | 6 |
Overall dimensions, mm, no more | |
width mm | 375 |
depth mm | 248 |
height mm | 744 |
Weight, kg, no more | 24 |
The size of connecting branch pipes: | |
– Return cold water inlet | G 3/4″ |
– Heated water output, supply | G 3/4″ |
Degree of protection | IP30 |
Parameter description | ESPRO-24 |
Power consumption, kW | 24 |
Useful power, kW | 24 |
Coefficient of performance, % | 99 |
Electrical network, V, ±10% | 380 / N / PE / 50Гц |
Rated voltage (max), A, ±10% | 3 х 35 |
Rated circuit breaker voltage, А | 3 х 40 |
Cable cross section mm2 Copper, CU | 5 x 8 |
Cable cross section mm2 Aluminum, AL | 5 х 12 |
Working pressure in the boiler, MPa | 0,5 – 1,5 |
Maximum pressure in the boiler, MPa | 3,0 |
Water temperature control in the boiler, 0С | Electronic, from + 30 to + 80 |
The maximum water temperature in the boiler, 0С | + 80 |
Indoor air temperature control, 0С | Electronic, from + 10 to + 40 |
Water temperature control in the hot water tank, 0С | Electronic, from + 30 to + 60 |
Circulation pump | WILO Para 15/6 |
Pump power, W | 3 – 43 |
Temperature of operation of the emergency overheat thermostat, 0С | + 105 |
Minimum water flow through the boiler, l / min | 3,7 |
The volume of the expansion tank, l | 6 |
Overall dimensions, mm, no more | |
width mm | 375 |
depth mm | 248 |
height mm | 744 |
Weight, kg, no more | 24 |
The size of connecting branch pipes: | |
– Return cold water inlet | G 3/4″ |
– Heated water output, supply | G 3/4″ |
Degree of protection | IP30 |