Boiler DEFRO CALORI 11 kW
SKU: F1701
Product details
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Defro CALORI Pellet Boilers
The Defro CALORI series boilers are modern and eco-friendly heating devices designed for the automatic combustion of wood pellets. They have been engineered to provide high energy efficiency and user comfort, while also complying with the strict emission standards of the Ecodesign directive. With a wide range of power outputs, the CALORI boilers serve as a reliable source of heat for various types of buildings.
Key Features of Defro CALORI Boilers:
- Automatic Pellet Combustion: The boiler is designed to operate in automatic mode, using recommended pellets or wood briquettes as fuel, ensuring ease of use.
- High Thermal Efficiency: The devices boast high operational efficiency, exceeding 84% at nominal power, which translates into effective fuel utilization.
- Compliance with Ecodesign: The boilers meet the requirements of Commission Regulation (EU) 2015/1189 (Ecodesign), featuring low emissions of particulate matter (PM), carbon monoxide (CO), volatile organic compounds (VOCs), and nitrogen oxides (NOx).
- Wide Power Range: The series includes models with varied nominal power (from approximately 11 kW to about 30 kW), allowing for the selection of a device that matches the heating needs of the building.
- Automated and Efficient Operation: The boilers are designed for optimal performance, recommending the use of a properly selected buffer tank for hot water to maximize efficiency and stability of the heating system.
Who is it a Good Choice For?
The Defro CALORI pellet boilers are an excellent choice for homeowners of single-family houses, both new and renovated, who are seeking a reliable, eco-friendly, and largely maintenance-free heat source. The wide range of available power outputs enables the selection of an appropriate model for buildings of various sizes, ensuring thermal comfort while respecting the environment and complying with existing standards.
Technical Specification – DEFRO CALORI Boilers (11-30 kW)
| Parameter | CALORI 11 | CALORI 15 | CALORI 20 | CALORI 24 | CALORI 30 |
|---|---|---|---|---|---|
| Device Parameters | |||||
| Model Identifier | CALORI 11 | CALORI 15 | CALORI 20 | CALORI 24 | CALORI 30 |
| Fuel Feed Method | Automatic fuel feed: it is recommended to operate the boiler with a hot water tank of at least 220 l capacity | Automatic fuel feed: it is recommended to operate the boiler with a hot water tank of at least 300 l capacity | Automatic fuel feed: it is recommended to operate the boiler with a hot water tank of at least 400 l capacity | Automatic fuel feed: it is recommended to operate the boiler with a hot water tank of at least 480 l capacity | Automatic fuel feed: it is recommended to operate the boiler with a hot water tank of at least 600 l capacity |
| Condensing Boiler | No | No | No | No | No |
| Solid Fuel Cogeneration Boiler | No | No | No | No | No |
| Multi-functional Boiler | No | No | No | No | No |
| Fuel and Emissions for Seasonal Room Heating | |||||
| Fuel | (recommended / other suitable) | ||||
| Logs, moisture ≤ 25 % | 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 |
| Wood chips, moisture > 35 % | No / No | No / No | No / No | No / No | No / No |
| Wood pellets or briquettes | Yes / No | Yes / No | Yes / No | Yes / No | Yes / No |
| Sawdust, moisture ≤ 50 % | No / No | No / No | No / No | No / No | No / No |
| Other wood biomass | No / No | No / No | No / No | No / No | No / No |
| Non-wood biomass | No / No | No / No | No / No | No / No | No / No |
| Hard coal | No / No | No / No | No / No | No / No | No / No |
| Lignite (including briquettes) | No / No | No / No | No / No | No / No | No / No |
| Coke | No / No | No / No | No / No | No / No | No / No |
| Anthracite | 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 |
| Other fossil fuel | 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 |
| Other mixture of biomass and fossil fuel | No / No | No / No | No / No | No / No | No / No |
| Seasonal energy efficiency of room heating (ηs) (%) – Recommended Fuel | 80 | 79 | 80 | 80 | 80 |
| PM emission (mg/m³) – Recommended Fuel | 15 | 18 | 15 | 16 | 16 |
| VOC emission (mg/m³) – Recommended Fuel | 18 | 15 | 15 | 14 | 15 |
| CO emission (mg/m³) – Recommended Fuel | 346 | 403 | 433 | 287 | 321 |
| NOₓ emission (mg/m³) – Recommended Fuel | 151 | 146 | 149 | 155 | 140 |
| Properties when Using Recommended Fuel Only | |||||
| Produced Usable Heat | |||||
| at nominal heat output (Pn) (kW) | 11.2 | 15.5 | 21.0 | 24.2 | 29.8 |
| at 30 % nominal heat output (Pp) (kW) | 3.0 | 4.0 | 6.0 | 6.9 | 8.9 |
| Operational Efficiency | |||||
| at nominal heat output (ηn) (%) | 84.7 | 84.0 | 84.3 | 84.4 | 84.3 |
| at 30 % nominal heat output (ηp) (%) | 85.1 | 83.5 | 84.1 | 83.9 | 83.8 |
| For Solid Fuel Cogeneration Boilers: Electrical Efficiency | |||||
| at nominal heat output (ηel,n) (%) | n/a | n/a | n/a | n/a | n/a |
| Electricity Consumption for Own Needs | |||||
| at nominal heat output (elmax) (kW) | 0.078 | 0.081 | 0.118 | 0.127 | 0.125 |
| at 30 % nominal heat output (elmin) (kW) | 0.026 | 0.030 | 0.031 | 0.038 | 0.034 |
| Secondary devices for emission reduction, where applicable | 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 |
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