Boiler DEFRO OPTIMA HG 19 kW
SKU: F170T
EAN: 2010000030301
Product details
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Defro OPTIMA HG Wood Log Boilers
The Defro OPTIMA HG series boilers are modern heating devices designed for the efficient and eco-friendly combustion of wood logs with manual loading. They feature a high energy efficiency class of A+ and meet the strict requirements of the Ecodesign directive, making them a reliable and economical source of heat for users who prefer traditional solid fuels.
Key Features of Defro OPTIMA HG Boilers:
- Designed for Wood Log Combustion: The boiler is optimized for burning wood logs with a moisture content of up to 25% during manual fuel loading.
- High Energy Efficiency (Class A+): These devices boast a high seasonal energy efficiency for room heating of 82% and a high nominal efficiency (approx. 85%).
- Ecodesign Compliance: The boilers comply with the requirements of Commission Regulation (EU) 2015/1189, ensuring low emissions of pollutants (PM, VOC, CO, NOx) during wood combustion.
- Available Heating Powers: The series includes models with a nominal thermal power of 19 kW, 25 kW, and 32 kW, allowing the device to be tailored to the heating needs of various buildings.
- Collaboration with Buffer Storage: To ensure optimal and stable operation of the heating system, as well as to maximize efficiency, it is recommended to operate the boiler in a system with a suitably selected thermal buffer storage.
Who Is This a Good Choice For?
The Defro OPTIMA HG boilers are an excellent choice for homeowners and other buildings looking for an efficient, eco-friendly wood log boiler with manual loading. They are ideal for users who value traditional fuel while expecting a device that meets modern efficiency and emission standards. The need for collaboration with a buffer storage unit makes this a solution for conscious investors aiming to create an optimal heating system.
Technical Specification – DEFRO OPTIMA HG Boilers (19-32 kW)
| Parameter | OPTIMA HG 19 | OPTIMA HG 25 | OPTIMA HG 32 |
|---|---|---|---|
| Device Parameters | |||
| Model Identifier | OPTIMA HG 19 | OPTIMA HG 25 | OPTIMA HG 32 |
| Fuel Supply Method | Manual loading: the boiler should be operated with a hot water storage tank with a minimum capacity of 735 l | Manual loading: the boiler should be operated with a hot water storage tank with a minimum capacity of 1005 l | Manual loading: the boiler should be operated with a hot water storage tank with a minimum capacity of 1320 l |
| Condensing Boiler | No | No | No |
| Cogeneration Boiler for Solid Fuel | No | No | No |
| Multifunctional Boiler | No | No | No |
| Parameters According to Regulation 2015/1187 | |||
| Energy Efficiency Class | A+ | A+ | A+ |
| Nominal Thermal Power (kW) | 19 | 25 | 32 |
| Energy Efficiency Index (EEI) | 120 | 120 | 120 |
| Seasonal Space Heating Energy Efficiency (ηs) (%) | 82 | 82 | 82 |
| Fuel and Emissions for Seasonal Space Heating | |||
| Fuel | (recommended / other suitable) | ||
| Logs, Moisture ≤ 25 % | Yes / No | Yes / No | Yes / No |
| Wood Chips, Moisture 15-35 % | No / No | No / No | No / No |
| Wood Chips, Moisture > 35 % | No / No | No / No | No / No |
| Pellets or Briquettes Made from Compressed Wood | No / No | No / No | No / No |
| Sawdust, Moisture ≤ 50 % | No / No | No / No | No / No |
| Other Wood Biomass | No / No | No / No | No / No |
| Non-Wood Biomass | No / No | No / No | No / No |
| Hard Coal | No / No | No / No | No / No |
| Lignite (including briquettes) | No / No | No / No | No / No |
| Coke | No / No | No / No | No / No |
| Anthracite | No / No | No / No | No / No |
| Briquettes from Mixed Fossil Fuel | No / No | No / No | No / No |
| Other Fossil Fuel | No / No | No / No | No / No |
| Briquettes from a Blend (30-70%) of Biomass and Fossil Fuel | No / No | No / No | No / No |
| Other Mixture of Biomass and Fossil Fuel | No / No | No / No | No / No |
| PM Emission (mg/m³) – Recommended Fuel | 17 | 16 | 16 |
| OGC Emission (mg/m³) – Recommended Fuel | 14 | 15 | 15 |
| CO Emission (mg/m³) – Recommended Fuel | 222 | 217 | 222 |
| NOₓ Emission (mg/m³) – Recommended Fuel | 65 | 102 | 100 |
| Properties when Operating with Recommended Fuel Only | |||
| Generated Useful Heat | |||
| at Nominal Thermal Power (Pn) (kW) | 19.1 / 19.4 | 25.1 / 25.3 | 33.3 / 33.5 |
| at 30% of Nominal Thermal Power (Pp) (kW) | n/a | n/a | n/a |
| Operational Efficiency | |||
| at Nominal Thermal Power (ηn) (%) | 85.0 / 85.3 | 85.0 / 85.2 | 85.0 / 85.5 |
| at 30% of Nominal Thermal Power (ηp) (%) | n/a | n/a | n/a |
| For Solid Fuel Cogeneration Boilers: Electrical Efficiency | |||
| at Nominal Thermal Power (ηel,n) (%) | n/a | n/a | n/a |
| Electricity Consumption for Own Use | |||
| at Nominal Thermal Power (elmax) (kW) | 0.0306 / 0.0311 | 0.0302 | 0.0403 / 0.0417 |
| at 30% of Nominal Thermal Power (elmin) (kW) | n/a | n/a | n/a |
| Secondary Devices for Emission Reduction, if applicable (kW) | n/a | n/a | n/a |
| in Standby Mode (PSB) (kW) | 0.0031 | 0.0031 | 0.0031 |
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