Description
The Zehnder ComfoAir Q450 Pre-Heater model includes a built-in 2.0 kW modulating pre-heater, allowing it to temper incoming air before it enters the heat exchanger. This prevents condensate freezing and ensures the unit operates effectively even in sub-zero conditions.
Like the standard Q450, it includes world-class 96% heat recovery, full summer bypass, humidity-based boost logic, and left/right configuration through software only. It is also compatible with KNX building automation and the Zehnder ComfoControl app for smart access and monitoring.
- Thermal efficiency: up to 96%
- Pre-heater included: Yes (2.0 kW)
- Max Power Consumption: 2240 W
- Current Draw: 10.8 A
- Fuse Rating: 13 A
- Best for: Cold climates (frost risk)
- Weight: 50 kg
- Energy rating: A
- Dimensions: 850 × 725 × 570 mm
- Installation: Wall- or floor-mounted (software-configurable left/right airflow)
Installation must be carried out by a certified ventilation engineer in compliance with local safety and electrical standards.