Helty FlowEASY Plus (Version Sensible Shutter + Preheating) Decentralised Heat Recovery Unit | Compact wall ventilation System
Helty FlowPLUS Sensible (Shutter + Preheating) Wall-Mounted MVHR Ventilation Unit
A premium decentralised wall-mounted MVHR unit from the Italian manufacturer Helty. Equipped with a high-efficiency counter-flow sensible heat exchanger, it ensures continuous air exchange with up to 91% thermal energy recovery. Designed for effective heat recovery in spaces where moisture exchange is not required, with condensate managed via standard drainage. Features advanced multi-stage filtration (F7 + G4) that captures pollen, fine dust, and allergens for cleaner indoor air.
The Shutter + Preheating model differs from the base STD version by featuring an automatic damper that seals the ventilation duct when switched off—preventing cold air from entering—as well as an integrated preheating element to warm incoming outdoor air during extreme cold.
Core Advantage: Maximum Comfort, Smart Control, and Quiet Operation
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Premium Ventilation Performance: Flagship model featuring an increased airflow rate up to 42 m³/h with 4 operating speeds + Night mode + Hyperventilation mode.
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Minimal Structural Impact: Clean installation without requiring bulky ductwork throughout the room—only requires drilling two small 80 mm diameter holes through the exterior wall (2x Ø80 mm).
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Sensible Heat Recovery: Counter-flow sensible heat exchanger recovers up to 91% of thermal energy, preventing heat loss while safely managing condensation during cold seasons.
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Smart Control & Monitoring: Automatic indoor climate management via an integrated hygrometric sensor (humidity sensor), Helty Home mobile app (Wi-Fi), IR remote control, and Modbus RTU rs485 support.
Detailed Overview of Capabilities and Technological Features
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High Performance & Flexible Adjustment:
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Airflow adjustment range: 8 / 10 / 17 / 26 / 37 / 42 m³/h (Night mode + 4 standard speeds + Hyperventilation).
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Continuous dual-flow operation providing a reliable alternative to push-pull systems.
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Acoustic Comfort:
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Sound Pressure Level: 17.5 to 42.2 dB(A).
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Multi-Stage Air Filtration:
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Supply Air (Intake): Dual-stage filtration via Coarse 90% (G4) + high-efficiency ePM2.5 65% (F7) filter, capturing pollen, dust, allergens, and fine particulates.
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Extract Air (Extraction): Coarse 70% (G2) filter protecting internal components.
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LED filter replacement indicator on the control panel.
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Smart Humidity Control: Integrated hygrometric sensor automatically adjusts ventilation speed when humidity levels rise to maintain optimal air quality.
Full Technical Specifications (PLUS Sensible Shutter + Preheating)
| Parameter / Feature | Value / Details |
| Country of origin | Made in Italy |
| Installation Orientation | Vertical or horizontal |
| Dimensions (W x H x D) | 339 x 467 x 144 mm |
| Net Weight | 8 kg |
| Wall Penetrations | 2x Ø80 mm holes |
| Airflow Rate | 8 / 10 / 17 / 26 / 37 / 42 m³/h |
| Flow Adjustment | Night + 4 stages + hyperventilation |
| Power Consumption | 2 / 3.6 / 5.5 / 9 / 17.5 / 20 W |
| Power Supply Parameters | Mains: 230 V AC / Internal operating voltage: 24 V DC |
| Heat Exchanger | Counter-flow sensible |
| Heat Recovery Efficiency | Up to 91% |
| Sensors | Built-in humidity sensor; compatible with external CO2 / IAQ sensors (Option) |
| Control | Remote control, Helty Home mobile app (Wi-Fi), Modbus RTU rs485 |
| Air Shutter | Yes |
| Electric Preheating | Yes |
| Supply Air Filter | ePM2.5 65% (F7) + Coarse 90% (G4) |
| Extract Air Filter | Coarse 70% (G2) |
| Energy Efficiency Class | A+ (Cold) / A (Temperate) / E (Warm) |
| Included Accessories | Digital manual QR card, installation template, MVHR filters, 2 white external grilles, 2 air ducts (Ø80, L=500mm), wall mounting kit, IR remote control |
You can install HELTY yourself or use our installation service.
Delivery & Return
Shipping Policy
Enjoy Free UK Delivery on Orders Over £199!
Enjoy free shipping on orders over £199 at Redlakecompany.co.uk! Most items qualify for free delivery, with shipping costs for Gloss Fire products calculated at checkout.
You can choose to have your order shipped with a variety of carriers, including DHL, UPS, Parcelforce, and DPD. However, we reserve the right to use a different courier if your parcel exceeds the size limits of the selected carrier.
Most orders placed before 3:00 PM are shipped the same day.
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Shipment method |
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DHL, UPS, Palletforce |
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Estimated delivery time |
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Estimated delivery: 1–3 working days. Exact delivery times are shown at checkout |
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Shipping cost |
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£0.00 for orders over £199 |
Shipment confirmation & Order tracking
You will receive a Shipment Confirmation email once your order has shipped containing your tracking number(s).
International Shipping Policy
We do ship outside the UK. For detailed information contact us info@redlakecompany.co.uk
Returns Policy
"Love it or Return it Guarantee"
At Redlake, we want to ensure that you receive the product that’s perfect for you. We understand that choosing the right item can be challenging, and sometimes things look different once they’re in your home.
That’s why we offer a free 30-day, no-questions-asked return guarantee. If you’re not completely satisfied with your order, you can exchange it for any other product or simply return it for a full refund.
Contact us by live chat or email info@redlakecompany.co.uk and request the appropriate returns address. To be eligible for a return, your item must be in the same condition that you received it, in its original packaging. You’ll also need the receipt or proof of purchase.
If you wish to return an item, please review our return policy.
View return policy.
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