Flexit Nordic L6 SW is a high-performance central air handling unit from the Norwegian Nordic range — designed for family homes and small commercial buildings up to 400 m². The patented Stage Wheel rotary heat exchanger delivers unit efficiency up to 95 %, airflow up to 657 m³/h and a sound power level of just 39 dB. Built-in humidity sensor and cooling recovery come as standard. Full control via the Flexit GO app. The compact design with a depth of 465 mm and a weight of 30 kg after disassembly allows easy transport through a standard dormer hatch. Reversible configuration — right-hand and left-hand setup from a single unit. Energy class A+ with local demand control.
Key Benefits
Smart Control with Flexit GO
Control the unit from anywhere via the mobile app or web interface. Modbus support for smart home integration. Optional NordicPanel touchscreen for local control with speed, temperature and timed boost settings.
Reversible design — right-hand and left-hand configuration
Doors on both sides and the control panel on top allow right-hand or left-hand configuration on site. Floor-standing installation with adjustable vibration-dampening feet. Ø200 mm duct connection ensures minimal pressure losses.
Homes up to 400 m² — one unit for the entire building
With airflow up to 657 m³/h (165 l/s at 200 Pa), the Flexit Nordic L6 SW covers large family homes, multi-storey apartments and small commercial spaces. A single central unit replaces multiple smaller ventilation units — simpler maintenance and lower operating costs.
Healthier Air Throughout the Home
Filtered and temperature-controlled air 24 hours a day. Heat recovery removes excess humidity and CO₂, reducing the risk of mould growth and allergic reactions. Cooling recovery is a standard feature — in summer it rejects heat from the supply air.
Why Stage Wheel?
Stage Wheel is a patented rotary heat exchanger developed by Flexit over more than 10 years. The combination of aluminium and polymers breaks the longitudinal heat conduction parallel to the airflow — resulting in up to 10 percentage points higher heat recovery efficiency compared to standard rotors.
The optimised internal surface roughness reduces airflow resistance while simultaneously improving heat transfer. The result: less noise, lower energy consumption and higher heat recovery.
Cooling recovery is a standard feature — the unit rejects heat from the supply air in summer and recovers it in winter. For sub-zero operation, a defrost function is available in the Flexit GO app, ensuring reliable year-round performance.
Annual Energy Savings
Flexit Nordic L6 SW significantly reduces heating costs thanks to the patented Stage Wheel exchanger and high airflow capacity. Estimated annual savings by climate zone (EPREL data):
(e.g. Scandinavia, mountain regions)
(e.g. Central Europe)
(e.g. Mediterranean region)
Technical Specifications
| Parameter | Value |
|---|---|
| Unit efficiency | up to 95 % |
| Thermal efficiency (EPREL) | 90 % |
| Max. airflow | 657 m³/h (165 l/s at 200 Pa) |
| Heat exchanger type | Rotary Stage Wheel (regenerative, patented) |
| Energy class | A (A+ with local demand control) |
| Sound power level | 39 dB |
| Specific fan power (SPI) | 0.36 W/(m³/h) |
| Rated voltage | 230 V / 50 Hz |
| Fan power | 2×170 W (max. 350 W total) |
| Electric post-heater (optional) | max. 1,500 W |
| Duct connection | Ø200 mm (nipple) |
| Recommended floor area | up to 330–400 m² |
| Dimensions (W×H×D) | 1,095×675×559 mm |
| Depth after disassembly | 465 mm |
| Weight | 67 kg (approx. 30 kg after disassembly) |
| Carry-over | 5 % |
| Annual electricity consumption | 418 kWh |
| Configuration | Reversible (right-hand and left-hand, doors on both sides) |
| Installation | Floor-standing, adjustable vibration-dampening feet |
| Control | Flexit GO (LAN, cloud, app) |
| Compatibility | Modbus, Flexit GO, NordicPanel (optional) |
| Accessories | Humidity sensor (built-in), NordicPanel |
| Article no. | 800150 |
| GTIN | 7023678001509 |
| EPREL | 2240780 |
Flexit Nordic L6 SW vs S7 vs S4 — which model to choose?
Nordic L6 SW is the newest model in the Nordic range featuring Stage Wheel technology — delivering unit efficiency up to 95 %, a noise level of just 39 dB and compact dimensions ideal for attic installation. The reversible design with doors on both sides allows flexible positioning without ordering separate right-hand and left-hand variants.
For large homes over 400 m², choose Flexit Nordic S7 (700 m³/h, Ø200 mm). For mid-size homes up to 200 m², consider Flexit Nordic S4 (461 m³/h, Ø160 mm) or Flexit Nordic S3 (361 m³/h, Ø125 mm).
Most efficient rotary exchanger on the market. Compact design. Healthy air for the entire building.
Flexit Nordic L6 SW is a high-performance central air handling unit with the patented Stage Wheel exchanger, unit efficiency up to 95 %, airflow up to 657 m³/h and energy class A+ — reversible design for right-hand and left-hand configuration.
| Brand | Flexit |
| Colour | Aluzink |
| Rated voltage | 230 V |
| Duct connection | Ø 200 mm |
| Height (mm) | 620mm |
| Width (mm) | 1095mm |
| Depth (mm) | 565mm |
| Weight | 67kg |
Customer Reviews
Štefan Bielik
21 Dec 2025Výkonná jednotka pre náš rodinný dom 180m². Účinnosť 95% nie je marketingový trik, reálne to funguje. Investícia, ktorá sa vráti.
Petra Kadlecová
4 Nov 2025Jednotka pro náročné podmínky. V zimě při -15°C dodává příjemně teplý vzduch. Rotační výměník je geniální technologie.
Anna Lindberg
25 Sept 2025Excellent performance in Nordic climate. 95% heat recovery really works. Best investment for our passive house.