OPOP NATURO wood boiler
Easy operation
Wood boiler without electronic elements and fan.
Compact boiler size, large hopper
Thanks to the clever design solution, the boiler can be placed even in smaller spaces. The large hopper can hold up to 66 liters of fuel.
Minimum emissions
5th emission class and minimum harmful emissions.
OPOP NATURO are a gasification wood boiler. Thanks to its sophisticated design, it burns fuel without electricity and also achieves high combustion quality.
Easy to operate
- The gasification process is achieved without the use of electronically controlled elements and a fan.
- Possibility of operation in gravity systems without the need for a power connection.
- Connection compatibility with U26 boilers.
- The voluminous hopper can hold up from 66 to 83 liters of fuel depending on output.
- The loading door is located at the front of the boiler with a large opening for easy loading.
- Variability of opening the loading and ash door from the right or left.
- Variability of placing the grate lever from the right or left.
- Easily regulate the power using the primary and secondary air dampers.
- The draft regulator ensures automatic power regulation.
- Easy maintenance and cleaning of the boiler.
- Undemanding to chimney draft.
Proven design
- The small size of the boiler ensures that it fits into very small spaces without the need for structural modifications. The dimension boiler OPOP NATRUO 16 width is 517 mm, depth 1011 mm and total height just over 1000 mm.
- Large hopper compared to the total size of the boiler, which has a volume of 66 liters of fuel.
- Integrated cooling loop for safe operation without the risk of overheating.
Economical and ecological operation
- Efficiency of almost 90% ensures efficient use of fuel energy.
- Low fuel consumption minimizes operating costs.
- It falls into the 5th emission class and meets the conditions of ecodesign.
- Low wood consumption together with a large hopper reduce the frequency of fuel addition.
- Boilers have up to 30% lower consumption compared to old combustion boilers.
- High-quality combustion results in very low emissions even without the use of a fan or other electrical equipment.
Long service life
- The boiler sheet thickness of 5 mm guarantees a long service life of the boiler.
- Grate made of high-quality cast iron.
- Above-standard 5‑year warranty on the tightness of the weld, when the installation is carried out by a trained installation company in accordance with the instructions.
- Long-term proven and customer-tested product reliability.
| Technical parameters | ||||
| Type of boiler | OPOP NATURO 16 | OPOP NATURO 21 | OPOP NATURO 26 | |
| Nominal thermal output | kW | 16 | 21 | 26 |
| Efficiency | % | 88,6 | 89 | 89 |
| Minimal operating draft | Pa | 16 | 16 | 16 |
| Required operating draft | Pa | 18 – 22 | 18 – 22 | 18 – 22 |
| Weight | kg | 297 | 370 | 376 |
| Ecodesign | ANO | ANO | ANO | |
| Boiler class according to EN 303 – 5 | 5 | 5 | 5 | |
| Water volume | l | 67 | 89 | 95 |
| Flue pipe diameter | mm | 159 | 159 | 159 |
| Fuel consumption | kg | 4,4 | 5,4 | 6,7 |
| Heating water temperature range | C | 65 – 90 | 65 – 90 | 65 – 90 |
| Fuel shaft volume | l | 66,5 | 79 | 83 |
| Filling hole dimensions (hxw) | mm | 270x315 | 280x384 | 280x384 |
| Log length | cm | 25 – 31 | 28 – 33 | 33 – 33 |
| Burning duration at nominal output | h | >3 | >3 | >2,5 |
| Maximum heating water pressure | MPa | 0,2 | 0,2 | 0,2 |
| Test heating water pressure | MPa | 0,3 | 0,3 | 0,3 |
| Boiler dimensions/ Type | OPOP NATURO 16 | OPOP NATURO 21 | OPOP NATURO 26 | ||
| Output/input nozzle (external thread) | G2” | G2” | G2” | ||
| Cooling loop connection (internal thread) | G3/4″ | G3/4″ | G3/4″ | ||
| Drain and fill connection (internal thread) | G1/2″ | G1/2″ | G1/2″ | ||
| A — total boiler height inc. thrust regulator | mm | 1132 | 1132 | 1132 | |
| A 1— boiler height | mm | 1082 | 1082 | 1092 | |
| B – total boiler depth | mm | 1081 | 1234 | 1234 | |
| C – boiler width | mm | 515 | 595 | 595 | |
| D – flue pipe location | mm | 793 | 793 | 793 | |
| E – inlet water nozzle location | mm | 181 | 181 | 181 | |
| F – outlet water nozzle location | mm | 959 | 959 | 959 | |
| G – cooling loop location | mm | 423 | 423 | 423 | |
| H – drain valve location | mm | 90 | 90 | 90 |
Product information
Certification
Technical data