Boiler DEFRO GAMMA 20 kW Left/Right
SKU: F170L
EAN: 2010000030189
Product details
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Defro GAMMA Series Pellet Boilers
The Defro GAMMA series boilers are modern, automated heating devices that use wood pellets, combining high energy efficiency classified as A+ with eco-friendly operation that meets Ecodesign standards. Offering a wide range of power options, GAMMA boilers provide comfortable and economical heating for various applications.
Key Features of Defro GAMMA Boilers:
- Automatic Pellet Combustion: The boiler operates fully automatically, using pellets or wood briquettes as recommended fuel, ensuring high user comfort.
- High Energy Efficiency (A+): An A+ energy class and seasonal heating efficiency of 79-81% guarantee economical fuel consumption.
- Compliance with Ecodesign: The devices meet the stringent requirements of Commission Regulation (EU) 2015/1189 (Ecodesign) concerning low emissions of pollutants (PM, VOC, CO, NOx) during pellet combustion.
- Wide Power Range (10-40 kW): The availability of models with rated power from 10 kW to 40 kW allows for precise fitting of the boiler to the heating needs of buildings of various sizes.
- Optimized Operation with Buffer Storage: Recommended cooperation with a properly selected hot water buffer tank (minimum capacity depending on the model) to ensure the most stable and efficient operation of the heating system.
- Low Electricity Consumption: The boilers are characterized by low electricity usage for their own operation, which further reduces operating costs.
Who is this a good choice for?
The Defro GAMMA boilers are an excellent solution for homeowners as well as smaller commercial and public utility buildings seeking an efficient, eco-friendly, and automated pellet heating system. Their high energy class and compliance with standards make them an ideal choice for those who value savings, ease of use, and commitment to environmental protection.
Technical Specification – DEFRO GAMMA Boilers (10-40 kW)
| Parameter | GAMMA 10 | GAMMA 15 | GAMMA 20 | GAMMA 25 | GAMMA 30 | GAMMA 40 |
|---|---|---|---|---|---|---|
| Device Parameters | ||||||
| Model Identifier | GAMMA 10 | GAMMA 15 | GAMMA 20 | GAMMA 25 | GAMMA 30 | GAMMA 40 |
| Fuel Supply Method | Automatic fuel supply: it is recommended to operate the boiler with a hot water tank with a minimum capacity of 200 liters | Automatic fuel supply: it is recommended to operate the boiler with a hot water tank with a minimum capacity of 300 liters | Automatic fuel supply: it is recommended to operate the boiler with a hot water tank with a minimum capacity of 400 liters | Automatic fuel supply: it is recommended to operate the boiler with a hot water tank with a minimum capacity of 500 liters | Automatic fuel supply: it is recommended to operate the boiler with a hot water tank with a minimum capacity of 600 liters | Automatic fuel supply: it is recommended to operate the boiler with a hot water tank with a minimum capacity of 800 liters |
| Condensing Boiler | no | no | no | no | no | no |
| Solid Fuel Cogeneration Boiler | no | no | no | no | no | no |
| Multifunctional Boiler | no | no | no | no | no | no |
| Parameters according to Regulation 2015/1187 | ||||||
| Energy Efficiency Class | A+ | A+ | A+ | A+ | A+ | A+ |
| Rated Thermal Power (kW) | 10 | 15 | 20 | 25 | 30 | 40 |
| Energy Efficiency Index (EEI) | 119 | 117 | 118 | 119 | 118 | 118 |
| Seasonal Space Heating Energy Efficiency (ηs) (%) | 80 | 79 | 80 | 81 | 80 | 80 |
| Fuel and Emission Data for Seasonal Space Heating | ||||||
| Fuel | (recommended / other suitable) | |||||
| Logs, moisture ≤ 25% | no / no | no / no | no / no | no / no | no / no | no / no |
| Wood Chips, moisture 15-35% | no / no | no / no | no / no | no / no | no / no | no / no |
| Wood Chips, moisture > 35% | no / no | no / no | no / no | no / no | no / no | no / no |
| Wood comminuted in the form of pellets or briquettes | yes / no | yes / no | yes / no | yes / no | yes / no | yes / no |
| Sawdust, moisture ≤ 50% | no / no | no / no | no / no | no / no | no / no | no / no |
| Other Wood Biomass | no / no | no / no | no / no | no / no | no / no | no / no |
| Non-Wood Biomass | no / no | no / no | no / no | no / no | no / no | no / no |
| Hard Coal | no / no | no / no | no / no | no / no | no / no | no / no |
| Brown Coal (including briquettes) | no / no | no / no | no / no | no / no | no / no | no / no |
| Coke | no / no | no / no | no / no | no / no | no / no | no / no |
| Anthracite | no / no | no / no | no / no | no / no | no / no | no / no |
| Briquettes from mixed fossil fuel | no / no | no / no | no / no | no / no | no / no | no / no |
| Other Fossil Fuel | no / no | no / no | 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 | no / no | no / no |
| Other mix of biomass and fossil fuel | no / no | no / no | no / no | no / no | no / no | no / no |
| PM Emission (mg/m³) – Recommended Fuel | 14 | 15 | 15 | 14 | 14 | 15 |
| HG Emission (mg/m³) – Recommended Fuel | 17 | 15 | 15 | 16 | 16 | 16 |
| CO Emission (mg/m³) – Recommended Fuel | 262 | 278 | 279 | 284 | 283 | 309 |
| NOₓ Emission (mg/m³) – Recommended Fuel | 184 | 186 | 191 | 198 | 176 | 184 |
| Properties when operating using only the recommended fuel | ||||||
| Produced Useful Heat | ||||||
| at rated thermal power (Pn) (kW) | 10.2 | 15.3 | 19.8 | 25.0 | 30.1 | 38.8 |
| at 30% rated thermal power (Pp) (kW) | 2.9 | 4.5 | 5.9 | 7.1 | 8.9 | 11.6 |
| Operational Efficiency | ||||||
| at rated thermal power (ηn) (%) | 85.3 | 84.7 | 84.9 | 85.1 | 84.6 | 84.6 |
| at 30% rated thermal power (ηp) (%) | 85.6 | 83.6 | 84.3 | 84.8 | 84.3 | 83.8 |
| For solid fuel cogeneration boilers: electrical efficiency | ||||||
| at rated thermal power (ηel,n) (%) | n/a | n/a | n/a | n/a | n/a | n/a |
| Electricity Consumption for Own Needs | ||||||
| at rated thermal power (elmax) (kW) | 0.075 | 0.081 | 0.101 | 0.116 | 0.126 | 0.132 |
| at 30% rated thermal power (elmin) (kW) | 0.026 | 0.028 | 0.032 | 0.036 | 0.038 | 0.041 |
| Secondary devices for emission reduction, where applicable | n/a | n/a | n/a | n/a | n/a | n/a |
| in standby mode (PSB) (kW) | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 | 0.002 |
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