EKO-KWP Multi Dual Premium: 15, 20, 25
characteristics
Multi Dual Premium boilers are designed for operation in water central heating systems of houses, multi-family houses, smaller resorts, workshops, etc. Central heating systems can be: open system - having a security in accordance with the requirements of the standard PN-B-02413 or a closed system - having a security in accordance with the requirements of the standard PN-B-02414.
Boiler advantages:
- possibility of burning different types of coal and biomass,
- automatic firing up,
- high energy efficiency,
- economic exploitation,
- mechanical fuel feeding,
- safe, simple, convenient operation and maintenance,
- low emissions of harmful substances,
- emergency water grate in case of failure of screw feeder.
The boiler is equipped with driver EL480 zPID multi
Available models
technical information
| Parameter | Unit | MULTI Dual Premium 15 | |||
| Fuel type | hard coal-pea coal | lignite-pea coal | wood pellets | ||
| Nominal power | kW | 15 | 15 | 20 | |
| Range of power regulation | kW | 5-15 | 5-15 | 5-15 | |
| Efficiency | % | about 90 | |||
| Class | 4 | ||||
| The flue gas temperature | °C | 160-250 | |||
| Boiler weight without water | kg | 420 | |||
| Water capacity | dm³ | 95 | |||
| The outer diameter of smoke conduit | mm | 160 | |||
| The recommended cross-section of the flue | cm | 20 x 20 | |||
| Tank loading aperture | mm | 470 x 380 | |||
| Tank capacity | dm³ | 225 | |||
| The maximum water pressure | bar | 2,5 | |||
| The recommended operating temperature of heating water | °C | 65 | |||
| The maximum and minimum temperature heating water | °C | 85 / 35 | |||
| Required chimney draft | mbar | 0,1 - 0,25 | |||
| Boiler connections | water heating (input) | external thread 1½” - 1 piece internal thread 1” - 2 pieces | |||
| water heating (return) | external thread 1½” - 1 piece | ||||
| Drain | internal thread ½” | ||||
| Supply voltage | 1~230V / 50Hz TN-S | ||||
| Connected load (fan + gear) | W | 970 | |||
| Parameter | Unit | MULTI Dual Premium 20 | |||
| Fuel type | hard coal-pea coal | lignite-pea coal | wood pellets | ||
| Nominal power | kW | 20 | 20 | 20 | |
| Range of power regulation | kW | 7-20 | 7-20 | 7-20 | |
| Efficiency | % | about 90 | |||
| Class | 4 | ||||
| The flue gas temperature | °C | 160-250 | |||
| Boiler weight without water | kg | 460 | |||
| Water capacity | dm³ | 110 | |||
| The outer diameter of smoke conduit | mm | 160 | |||
| The recommended cross-section of the flue | cm | 20 x 20 | |||
| Hole for receiving a fuel | mm | 470 x 480 | |||
| Tank capacity | dm³ | 275 | |||
| Operating water pressure | bar | 2,5 | |||
| The recommended operating temperature of heating water | °C | 65 | |||
| The maximum and minimum temperature og heating water | °C | 85 / 35 | |||
| Required chimney draft | mbar | 0,1 - 0,25 | |||
| Boiler connections | water heating (input) | external thread 1½” - 1 piece internal thread 1” - 2 pieces | |||
| water heating (return) | external thread 1½” - 1 piece | ||||
| Drain | internal thread ½” | ||||
| Supply voltage | 1~230V / 50Hz TN-S | ||||
| Connected load (fan + gear) | W | 970 | |||
| Parameter | Unit | MULTI Dual Premium 25 | |||
| Fuel type | hard coal-pea coal | lignite-pea coal | wood pellets | ||
| Nominal power | kW | 24 | 23 | 14 ; 24 | |
| Range of power regulation | kW | 7,5-24 | 7-23 | 4,5-14 ; 7,5-24 | |
| Efficiency | % | about 90 | |||
| Class | 4 | ||||
| The flue gas temperature | °C | 160-250 | |||
| Boiler weight without water | kg | 515 | |||
| Water capacity | dm³ | 135 | |||
| The outer diameter of smoke conduit | mm | 160 | |||
| The recommended cross-section of the flue | cm | 20 x 20 | |||
| Hole for receiving a fuel | mm | 470 x 550 | |||
| Tank capacity | dm³ | 275 | |||
| Operating water pressure | bar | 2,5 | |||
| The recommended operating temperature of heating water | °C | 65 | |||
| The maximum and minimum temperature heating water | °C | 85 / 35 | |||
| Required chimney draft | mbar | 0,1 - 0,25 | |||
| Boiler connections | water heating (input) | external thread 1½” - 1 piece internal thread 1” - 2 pieces | |||
| water heating (return) | external thread 1½” - 1 piece | ||||
| Drain | internal thread ½” | ||||
| Supply voltage | 1~230V / 50Hz TN-S | ||||
| Connected load (fan + gear) | W | 970 | |||
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| Multi Dual Premium | A | B | C | D | E | F | G | H | I | J |
| 15 | 560 | 1180 | 830 | 1220 | 82 | 450 | 1370 | 1550 | 650 | 855 |
| 20 | 560 | 1180 | 900 | 1265 | 82 | 470 | 1420 | 1605 | 615 | 855 |
| 25 | 590 | 1210 | 980 | 1310 | 82 | 500 | 1460 | 1640 | 650 | 890 |