Zehnder 471234230 ComfoAir Flex 250 with Pre-Heater Space Saving Design Mechanical Ventilation Unit With Heat Recovery MVHR

ComfoAir Flex 250 with Pre-Heater – Compact MVHR Unit with Climate Switch® Technology, Smart App Control & Year-Round Comfort

The ComfoAir Flex 250 with Pre-Heater is a compact Mechanical Ventilation with Heat Recovery (MVHR) unit designed for space-constrained environments. With integrated pre-heating for cold-weather efficiency, Climate Switch® seasonal comfort control, and full smart app functionality, it offers high-performance ventilation ideal for apartments and modern residential buildings.

• Climate Switch® Technology: Prevents overheating in summer and boosts heat recovery in winter to deliver an ideal indoor climate in every season.
• Built-In Pre-Heater: Enhances cold climate performance by pre-warming incoming air, protecting the system and maintaining occupant comfort.
• Advanced Air Filtration: Fine particle filters provide clean, healthy air by capturing even the smallest airborne pollutants.
• Smart App Control via WiFi: Full control of unit functions through the Zehnder ComfoControl app for convenient, user-friendly operation and setup.
• Quick Commissioning: Step-by-step installation wizard simplifies setup and airflow balancing, reducing time on site.

Technical Specification

• Max. Air Volume: 250 m³/h
• Thermal Efficiency: Not stated (includes pre-heating for improved winter performance)
• Mounting Type: Compact, ceiling or cupboard-mounted
• Bypass Function: Full and filtered summer bypass (via Climate Switch®)
• Power Supply: 230 V, 50 Hz

✅ Opt for the ComfoAir Flex 250 with Pre-Heater for intelligent, space-saving ventilation that delivers comfort, control, and air purity all year round.