DIANA ECO is a compact wood-burning room heater designed for efficient and comfortable heating. Its small external dimensions make it suitable for rooms where installation space is limited. The appliance is intended for dry wood logs and intermittent operation.
| Nominal heat output | 5.1 kW |
| Dimensions (W × D × H) | 390 × 435 × 785 mm |
| Firebox dimensions (W × D × H) | 200 × 250 × 360 mm |
| Net weight | 54 kg |
| Efficiency | 83.1 % |
| Seasonal space heating efficiency | 73.1 % |
| EEI / energy class | 111 / A+ |
| Fuel | wood logs |
| Fuel consumption at nominal output | 1.5 kg/h |
| Flue outlet | Ø120 mm, top |
| Flue gas temperature | 323 °C |
| Minimum flue draught | 12 Pa |
| Flue gas mass flow | 3.6 g/s |
| Chimney fire safety class | T400 G |
| Operation | intermittent |
Emissions at nominal output (13% O₂): CO 893 mg/m³; dust 30 mg/m³; NOx 127 mg/m³; OGC 61 mg/m³.
Minimum distances to combustible materials:
rear 500 mm; side 800 mm; front 1500 mm; side radiation area 1500 mm; ceiling >750 mm; bottom 0 mm; floor in front 1500 mm.
Documents
Installation and operating instructions (EN)
Declaration of Performance (DoP)
CE label
Energy label
Performance data: manufacturer Declaration of Performance No. 0010/09.12.25, signed 3 June 2026. Standards: EN 16510-1:2022; EN 16510-2-1:2023.
