02 Feb 2026
DucoBox Energy Comfort (Plus) D250
Compact yet powerful - the lightweight D250 ventilation unit is perfectly suited to flats and compact homes. Its silent operation, automatic adjustment, and high EPB reduction make this unit the ideal combination of energy efficiency and installation convenience.
Key Features:
- Compact and lightweight: Fits easily in cupboards, washer-dryer towers, or wall-mounted configurations
- Silent operation: Sound-dampening casing ensures optimal occupant comfort
- Time-saving for installers: Automatic adjustment and copy function reduce installation and commissioning time by up to 50%
- Intelligent energy management: 2-zone control with integrated heads-up display for easy monitoring and operation
- Plus variant available: Metal casing provides additional acoustic dampening
Compact External 2-Zone Control The property is divided into day and night zones, with zonal control based on CO₂ and humidity levels. This ensures ventilation is only provided where and when needed, in precisely the right amount.
Zonal ventilation delivers maximum energy savings whilst increasing both acoustic and thermal comfort.
Discover the 4 Benefits of Multi-Zone Valves:
- Compact Installation Multi-zone valves install in supply ducts (D125 or D160) and require only 78 mm clearance. They can be positioned at any point in the duct system, allowing installers to choose locations based on ease of installation and accessibility.
- Energy Savings Zonal ventilation targets only occupied rooms rather than the entire property. This reduces system workload, resulting in substantially lower energy consumption (40% reduction) for both the ventilation unit and heating system.
- Quieter Operation Reduced motor rotation ensures significantly quieter operation (30% noise reduction).
- Enhanced Thermal Comfort The unique comfort temperature setting principle allows you to define temperatures for each zone—for example, 21.5°C for the day zone and 18°C for the night zone, providing significantly improved thermal comfort.