



Zehnder 471502017 ComfoAir Q350 with Pre-Heater, Left Handed Mechanical Ventilation Unit With Heat Recovery MVHR & Humidity Sensor
471502017
ComfoAir Q350 LH with Pre-Heater – Left-Handed MVHR Unit with SMART Humidity Control & 98.8% Heat Recovery
The ComfoAir Q350 Left-Handed MVHR Unit with Pre-Heater delivers ultra-high efficiency and advanced environmental control in one compact system. With a market-leading 98.8% thermal recovery, adaptive comfort features, and precision airflow management, it's engineered for modern energy-conscious homes and certified low-energy builds.
- Outstanding 98.8% Thermal Efficiency: Pre-heater integration boosts recovery performance—independently recognised by the Passive House Institute (PHI) for cold climate applications.
- Advanced Humidity Detection: SMART boost control reacts to artificial spikes in humidity—ideal for kitchens, bathrooms, and busy households.
- Filtered Modulating Summer Bypass: Maintains air quality with 100% bypass functionality for fresh air intake during warmer months.
- Left-Handed Orientation: Set up for left-hand duct configuration, with software-based switching between flow directions as needed.
- Installer-Friendly Design: Commissioning wizard and tool-free filter access simplify setup and long-term maintenance.
Technical Specification
- Max. Air Volume: 350 m³/h at 250 Pa
- Thermal Efficiency: 98.8% (EPN standard, with pre-heater)
- Mounting Type: Wall or floor
- Bypass Function: 100% full and filtered modulating summer bypass
- Power Supply: 230 V, 50 Hz | Amperage: 7.6 A | Power Input: 0.086 kW
✅ Choose the ComfoAir Q350 LH with Pre-Heater for unmatched comfort, top-tier efficiency, and left-handed installation flexibility in high-performance homes.
Range | Zehnder ComfoAir |
Product | Whole House Filtration |
Delivery Costs
Our standard delivery charge to UK mainland addresses is £5.90 ex-VAT.
Take advantage of FREE* Delivery when you spend over £100 (per order) ex-VAT.
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12.00 ex-VAT.
Solar Panels, Batteries and Inverters
Due to their size all solar panels, batteries and inverters orders up to 50 qty will be despatched on a pallet and incur a £120** ex-VAT delivery charge.
**£180 ex VAT to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes.
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