Manual fired boiler for coal Tekla CLASSICO 14
Regular price:
67 987,88 Kč
The promotion runs until 24 July 2026
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Description
Tekla CLASSICO Boiler
CLASSICO FOR COAL is a modern steel manually loaded boiler designed exclusively for burning hard coal. The unit has been developed to provide efficient and more environmentally friendly heating. The specially engineered combustion chamber design allows the boiler to achieve efficiency levels of up to 91%, resulting in lower fuel consumption and reduced operating costs. The advanced technological solutions used in the boiler enable operation with a natural chimney draft, eliminating the need for additional combustion-support devices. The Classico model can be installed in both open and closed heating systems, providing great flexibility when modernizing existing installations or constructing new ones. The unit complies with the stringent requirements of Class 5 emission standards and Ecodesign regulations, as confirmed by the appropriate quality and safety certificates. Available in outputs ranging from 14 to 30 kW, the boiler can be matched to the needs of various residential buildings and central heating systems. Choosing this solution means not only thermal comfort but also conscious support for environmental protection.
Boiler Advantages
- Class 5 efficiency and emissions performance according to PN-EN 303-5:2012
- Complies with Ecodesign requirements
- 4-year warranty on boiler heat exchanger tightness
- Efficiency up to 91%
- Suitable for hard coal firing
- Patented combustion chamber system
- Heat exchanger made of high-quality 8 mm steel
- Powder-coated boiler casing
- Easy operation and maintenance
- Threaded connections for simplified installation
- Mechanical combustion air control using a draft regulator
- High heat recovery from flue gas channels
- Option to install a pellet burner kit
Example Installation Diagram – Classico Boiler

1 - Ball valve with drain valve, 2 - Boiler pump, 3 - Filter, 4 - Three-way thermostatic valve 45–50 °C, 5 - Automatic air vent, 6 - Safety valve, 7 - Expansion vessel, 8 - Check valve, 9 - Buffer tank, 10 - DBV valve, 11 - Hot water cylinder, 12 - Pressure gauge, 13 - Domestic hot water expansion vessel, 14 - DHW pump, 15 - CH pump, 16 - Three-way valve with actuator, 17 - Ball valve, 18 - Room thermostat, 19 - Central heating circuit 1, T1 - CH circuit 1 temperature sensor, T2 - Boiler temperature sensor, T3 - Hot water cylinder temperature sensor, T4 - Buffer tank temperature sensor (top), T5 - Buffer tank temperature sensor (bottom).
Operating Principle

1. Shelf-type heat exchanger, 2. Ceramic nozzle set, 3. Inclined grate, 4. Draft regulator
Ignition Process:
When lighting the boiler, open the flue gas bypass damper, load a small amount of fuel and ignite it.

Combustion Process:
Once the fire has been established, fill the combustion chamber to its full capacity and close the flue gas bypass damper.

Technical Data
| PARAMETERS FOR HARD COAL | ||||||
| Parameter | SI | CLASSICO 14 | CLASSICO 18 | CLASSICO 24 | CLASSICO 30 | |
|---|---|---|---|---|---|---|
| PARAMETERS FOR HARD COAL | ||||||
| Nominal Output | kW | 15 | 20 | 25 | 29 | |
| Efficiency | Nominal Output | % | 88.4 | 90.4 | 90.7 | 90.9 |
| Seasonal Efficiency | % | 83 | 83 | 84 | 84 | |
| Seasonal Emissions | PM | mg/m³ | 25 | 9 | 20 | 28 |
| OGC | 8 | 16 | 15 | 14 | ||
| CO | 142 | 252 | 235 | 222 | ||
| NOx | 226 | 343 | 346 | 349 | ||
| Fuel Type | - | Hard Coal | ||||
| Fuel Consumption | Nominal Output | kg/h | 1.9 | 2.7 | 3.4 | 4.0 |
| Burn Time (Nominal Output) | h | approx. 6 h | ||||
| Flue Gas Temperature | Nominal Output | °C | 150-200 | 150-200 | 150-200 | 150-200 |
| Boiler Class | - | 5 | ||||
| Energy Efficiency Class | - | B | ||||
| EEI Index | - | 83 | 83 | 84 | 84 | |
| Boiler Weight | kg | 377 | 388 | 388 | 442 | |
| Boiler Heating Surface | m² | 1.8 | 2.1 | 2.1 | 2.5 | |
| Water Capacity | dm³ | 55 | 70 | 70 | 80 | |
| Required Chimney Draft | Pa | 20 | 20 | 25 | 30 | |
| Boiler Dimensions | Width | mm | 620 | 620 | 620 | 620 |
| Depth | mm | 950 | 1000 | 1000 | 1100 | |
| Height | mm | 1110 | 1110 | 1110 | 1110 | |
| Flue Outlet Diameter | mm | 159 | ||||
| Loading Door Opening Dimensions | mm | 155 × 360 | ||||
| Maximum Water Operating Pressure | bar | 1.5 | ||||
| Fluid Group | - | 2 - Water | ||||
| Recommended Heating Water Temperature | °C | 65 ÷ 80 | ||||
| Maximum Heating Water Temperature | °C | 90 | ||||
| Minimum Return Water Temperature | °C | 50 | ||||
| Maximum Permissible Heating Medium Height | m | 15 | ||||
| Safety Valve | bar | 1.5 | ||||
| Flow and Return Connections | Js | G 2" | ||||
| Water Flow Resistance Through Boiler | mbar | 25 – 30 | ||||
| Flue Gas Mass Flow | Nominal Output | g/s | 12 | 13 | 13 | 13 |
Dimensions

| CLASSICO 14 | CLASSICO 18 | CLASSICO 24 | CLASSICO 30 | ||
| A | mm |
620 | 620 | 620 | 620 |
| A1 | 565 | 565 | 565 | 565 | |
| B | 950 | 1000 | 1000 | 1100 | |
| B1 | 800 | 850 | 850 | 950 | |
| B2 | 150 | 150 | 150 | 150 | |
| B3 | 675 | 725 | 725 | 825 | |
| C | 1110 | 1110 | 1110 | 1110 | |
| C1 | 795 | 795 | 795 | 795 | |
| C2 | 1095 | 1095 | 1095 | 1095 | |
| C3 | 1002 | 1002 | 1002 | 1002 | |
| C4 | 182 | 182 | 182 | 182 | |
| C5 | 780 | 780 | 780 | 780 | |
| C6 | 133 | 133 | 133 | 133 | |
3D
Technical data
| Boiler class (303-5:2012) | 5 |
| Weight | 377 kg |
| Ecodesign | + |
| Height | 1110 mm |
| Width | 620 mm |
| Depth | 950 mm |
| Power output - coal / wood | 15/14 kW |
| Warranty | 48 mies. |
| Loading compartment dimensions | 155 x 360 mm |
| Max working pressure | 1,5 bar |
| Max. water temperature | 90 °C |

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