Boiler DEFRO FIREWOOD DUO 24 kW
SKU: F170I
EAN: 2010000030141
Product details
| Manufacturer | |
|---|---|
| CN | 84031090 |
Defro FIREWOOD DUO Dual-Fuel Boilers
The Defro FIREWOOD DUO series boilers are versatile and modern heating devices that combine the convenience of automatic pellet combustion with the option for manual loading of firewood. Designed with high efficiency and ecological considerations in mind, they meet the requirements of the Ecodesign directive when operating on pellets, achieving an energy class rating of A+. The FIREWOOD DUO series provides flexible and reliable heating for a variety of needs.
Key Features of the Defro FIREWOOD DUO Boilers:
- Two Operating Modes (DUO): Automatic pellet combustion for maximum convenience and efficiency, as well as the option for manual loading of firewood as an alternative or supplementary heat source.
- High Energy Efficiency (A+): In automatic pellet combustion mode, the boilers achieve high performance (up to around 86%) and seasonal energy efficiency for room heating of 82-83%.
- Ecodesign Compliance: While operating on pellets, the devices meet stringent emission standards (PM, OGC, CO, NOx) in accordance with Commission Regulation (EU) 2015/1189.
- Wide Range of Power: The series is available in nominal thermal power variants of 12, 15, 19, and 24 kW, allowing for the boiler to be tailored to the heating requirements of different buildings.
- Low Energy Consumption and Quiet Operation: The optimized design ensures minimal electricity consumption for the boiler’s own needs and a low noise level.
- Recommended Collaboration with a Buffer Tank: To ensure the most stable and efficient operation, particularly in automatic mode, it is recommended to operate the boiler in conjunction with a suitably sized heat buffer tank.
Who is this a good choice for?
The Defro FIREWOOD DUO boilers are the perfect solution for users seeking a flexible heating system that combines the convenience of automatic pellet heating with the ability to use firewood. They are an excellent choice for homeowners who value both comfort and fuel independence while maintaining high ecological and efficiency standards during pellet operation.
Technical Specification – DEFRO FIREWOOD DUO Boilers (12-24 kW)
| Parameter | FIREWOOD DUO 12 | FIREWOOD DUO 15 | FIREWOOD DUO 19 | FIREWOOD DUO 24 |
|---|---|---|---|---|
| Device Parameters | ||||
| Model Identifier | FIREWOOD DUO 12 | FIREWOOD DUO 15 | FIREWOOD DUO 19 | FIREWOOD DUO 24 |
| Fuel Feed Method | Automatic fuel feeding: requires boiler operation with a domestic hot water storage tank of 240 l capacity | Automatic fuel feeding: recommended operation with a domestic hot water storage tank of minimum 300 l capacity | Automatic fuel feeding: recommended operation with a domestic hot water storage tank of minimum 380 l capacity | Automatic fuel feeding: recommended operation with a domestic hot water storage tank of minimum 480 l capacity |
| Condensing Boiler | No | No | No | No |
| Co-generation Solid Fuel Boiler | No | No | No | No |
| Multi-functional Boiler | No | No | No | No |
| Parameters According to Regulation 2015/1187 | ||||
| Energy Efficiency Class | A+ | A+ | A+ | A+ |
| Rated Thermal Power (kW) | 12 | 15 | 19 | 24 |
| Energy Efficiency Index (EEI) | 121 | 121 | 121 | 121 |
| Seasonal Energy Efficiency for Space Heating (ηs) (%) | 83 | 82 | 82 | 82 |
| Fuel and Emissions Related to Seasonal Space Heating | ||||
| Fuel | (recommended / other appropriate) | |||
| Logs, moisture ≤ 25 % | No / No | No / No | No / No | No / No |
| Wood Chips, moisture 15-35 % | No / No | No / No | No / No | No / No |
| Wood Chips, moisture > 35 % | No / No | No / No | No / No | No / No |
| Sawdust Pellets or Briquettes | Yes / No | Yes / No | Yes / No | Yes / No |
| Sawdust, moisture ≤ 50 % | No / No | No / No | No / No | No / No |
| Other Wood Biomass | No / No | No / No | No / No | No / No |
| Non-woody Biomass | No / No | No / No | No / No | No / No |
| Hard Coal | No / No | No / No | No / No | No / No |
| Lignite (including briquettes) | No / No | No / No | No / No | No / No |
| Coke | No / No | No / No | No / No | No / No |
| Anthracite | No / No | No / No | No / No | No / No |
| Briquettes from Mixed Fossil Fuels | No / No | No / No | No / No | No / No |
| Other Fossil Fuel | No / No | No / No | No / No | No / No |
| Briquettes from a Mixture (30-70 %) of Biomass and Fossil Fuel | No / No | No / No | No / No | No / No |
| Other Mixture of Biomass and Fossil Fuel | No / No | No / No | No / No | No / No |
| PM Emission (mg/m³) – Recommended Fuel | 17 | 17 | 16 | 17 |
| OGC Emission (mg/m³) – Recommended Fuel | 14 | 13 | 16 | 13 |
| CO Emission (mg/m³) – Recommended Fuel | 282 | 268 | 286 | 282 |
| NOₓ Emission (mg/m³) – Recommended Fuel | 119 | 120 | 114 | 111 |
| Properties When Operating Using Only Recommended Fuel | ||||
| Usable Heat Generated | ||||
| at rated thermal power (Pn) (kW) | 12.2 | 15.2 | 19.3 | 24.2 |
| at 30 % of rated thermal power (Pp) (kW) | 3.5 | 4.2 | 5.3 | 7.1 |
| Operational Efficiency | ||||
| at rated thermal power (ηn) (%) | 85.4 | 85.5 | 85.8 | 85.5 |
| at 30 % of rated thermal power (ηp) (%) | 86.6 | 86.6 | 86.0 | 86.2 |
| for solid fuel co-generation boilers: electrical efficiency | ||||
| at rated thermal power (ηel,n) (%) | n/a | n/a | n/a | n/a |
| Electricity Consumption for Own Needs | ||||
| at rated thermal power (elmax) (kW) | 0.029 | 0.037 | 0.040 | 0.055 |
| at 30 % of rated thermal power (elmin) (kW) | 0.012 | 0.018 | 0.020 | 0.032 |
| secondary devices for emission reduction, where applicable | n/a | n/a | n/a | n/a |
| in standby mode (PSB) (kW) | 0.003 | 0.003 | 0.003 | 0.003 |
Official distribution
Other brands in our portfolio
