DEFRO CALORI 24 kW Boiler
SKU: F1704
EAN: 2010000029961
Product details
| Manufacturer |
|---|
Defro CALORI series pellet boilers
Defro CALORI series boilers are modern, eco-friendly heating appliances designed for automatic combustion of wood pellets. They are engineered to provide high energy efficiency and user comfort while meeting the strict emission requirements of the Ecodesign directive. With a wide range of power outputs, CALORI boilers offer a reliable source of heat for various types of buildings.
- Product intended for the Polish market
- Warranty for the Polish market.
Main features of Defro CALORI boilers:
- Automatic pellet combustion: The boiler is designed for automatic operation, using recommended wood pellets or briquettes as fuel, which ensures ease of use.
- High thermal efficiency: The units deliver high operational efficiency, exceeding 84% at nominal output, which translates into efficient fuel use.
- 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), organic gaseous compounds (OGC) and nitrogen oxides (NOx).
- Wide power range: The series includes models with varying nominal outputs (approximately 11 kW to 30 kW), allowing selection of a unit that matches the building’s heat demand.
- Automated and efficient operation: The boilers are designed for optimal performance and are recommended to be used with a properly sized hot water buffer tank to maximize efficiency and system stability.
Who is this a good choice for?
Defro CALORI pellet boilers are an excellent option for owners of single-family homes, both new and renovated, who are looking for a reliable, eco-friendly and largely low-maintenance heat source. The broad range of available outputs makes it possible to choose an appropriate model for buildings of different sizes, ensuring thermal comfort while respecting the environment and complying with applicable 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 feeding method | Automatic fuel feeding: it is recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 220 l | Automatic fuel feeding: it is recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 300 l | Automatic fuel feeding: it is recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 400 l | Automatic fuel feeding: it is recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 480 l | Automatic fuel feeding: it is recommended to operate the boiler with a domestic hot water tank with a minimum capacity of 600 l |
| Condensing boiler | no | no | no | no | no |
| Solid fuel cogeneration boiler | no | no | no | no | no |
| Multifunction boiler | no | no | no | no | no |
| Fuel and emissions for seasonal space 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 |
| Pressed wood in the form of 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 woody biomass | no / no | no / no | no / no | no / no | no / no |
| Non-woody 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 mix (30-70%) of biomass and fossil fuel | 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 |
| Seasonal space heating energy efficiency (ηs) (%) – Recommended fuel | 80 | 79 | 80 | 80 | 80 |
| PM emissions (mg/m³) – Recommended fuel | 15 | 18 | 15 | 16 | 16 |
| OGC emissions (mg/m³) – Recommended fuel | 18 | 15 | 15 | 14 | 15 |
| CO emissions (mg/m³) – Recommended fuel | 346 | 403 | 433 | 287 | 321 |
| NOₓ emissions (mg/m³) – Recommended fuel | 151 | 146 | 149 | 155 | 140 |
| Characteristics when operating using only the recommended fuel | |||||
| Useful heat produced | |||||
| at nominal heat output (Pn) (kW) | 11.2 | 15.5 | 21.0 | 24.2 | 29.8 |
| at 30% of nominal heat output (Pp) (kW) | 3.0 | 4.0 | 6.0 | 6.9 | 8.9 |
| Useful efficiency | |||||
| at nominal heat output (ηn) (%) | 84.7 | 84.0 | 84.3 | 84.4 | 84.3 |
| at 30% of 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 use | |||||
| at nominal heat output (elmax) (kW) | 0.078 | 0.081 | 0.118 | 0.127 | 0.125 |
| at 30% of nominal heat output (elmin) (kW) | 0.026 | 0.030 | 0.031 | 0.038 | 0.034 |
| secondary emission reduction devices, 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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