Helty FlowULTRA (Enthalpy) Decentralised Heat Recovery Unit | Compact wall ventilation System
Helty FlowULTRA (Enthalpy) Wall-Mounted MVHR Ventilation Unit
A high-capacity decentralised wall-mounted MVHR unit from the Italian manufacturer Helty. Equipped with a high-efficiency enthalpy counter-flow heat exchanger, it ensures continuous dual-flow air exchange with up to 88% thermal energy recovery while maintaining natural indoor humidity levels. Designed to serve medium-to-large living spaces, small offices, professional practices, and open-plan areas. Features advanced multi-stage filtration (ePM2.5 65% / F7) that captures pollen, fine dust, smog, and allergens for cleaner indoor air.
Core Advantage: Maximum Comfort, Smart Control, and Quiet Operation
High-Capacity Ventilation Performance: Increased airflow rate up to 120 m³/h with 4 operating speeds + Night mode + Hyperventilation mode.
Minimal Structural Impact: Clean installation without requiring bulky ductwork throughout the room—only requires drilling two small 100 mm diameter holes through the exterior wall (2x Ø100 mm).
Enthalpic Heat & Moisture Recovery: Counter-flow enthalpy heat exchanger recovers up to 88% of thermal energy while maintaining optimal indoor humidity, preventing dry indoor air in winter and eliminating mould risk.
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.
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Detailed Overview of Capabilities and Technological Features
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High Performance & Flexible Adjustment:
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Airflow adjustment range: 13 / 30 / 45 / 60 / 80 / 120 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: 19.5 to 51.5 dB(A).
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Multi-Stage Air Filtration:
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Supply Air (Intake): ePM2.5 65% (F7) / Coarse 60% (G1) 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 (FlowULTRA)
| Parameter / Feature | Value / Details |
| Country of origin |
Made in Italy |
| Installation Orientation |
Horizontal |
| Dimensions (W x H x D) |
1000 x 320 x 180 mm |
| Net Weight |
12 kg |
| Wall Penetrations |
2x Ø100 mm holes |
| Airflow Rate |
13 / 30 / 45 / 60 / 80 / 120 m³/h |
| Flow Adjustment |
Night + 4 stages + hyperventilation |
| Power Consumption |
3 / 6 / 9 / 13 / 16.3 / 39 W |
| Power Supply Parameters |
Mains: 230 V AC / Internal operating voltage: 24 V DC |
| Heat Exchanger |
Counter-flow enthalpy |
| Heat Recovery Efficiency |
Up to 88% |
| Sensors |
Built-in humidity sensor; compatible with external CO2 / IAQ sensors (Option) |
| Control |
Remote control, Helty Home mobile app (Wi-Fi), Modbus RTU rs485 |
| Supply Air Filter |
ePM2.5 65% (F7) / Coarse 60% (G1) |
| 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 (Ø100, L=500mm), wall mounting kit, IR remote control with batteries |
| Product Code (STD) |
1VMC02011 |
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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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