{"product_id":"helty-flow-400-steel-commercial-mvhr-system-decentralised-heat-recovery-ventilation-for-schools-offices","title":"Helty Flow 400 Steel STD Commercial MVHR System – Decentralised Heat Recovery Ventilation for Schools \u0026 Offices","description":"\u003ch1\u003eHelty Flow400 Steel Ventilation Unit (STD Model)\u003c\/h1\u003e\n\u003ch2\u003eCore Advantage: Simplified, Clean Installation and Quick Retrofitting\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMinimal Structural Impact:\u003c\/b\u003e This decentralised ventilation system does not require long, bulky ductwork throughout the space. Installation requires drilling \u003cb\u003ejust two 200 mm diameter holes through the exterior wall (2x Ø200 mm)\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSignificant Cost Savings:\u003c\/b\u003e Eliminates the budget needed for ductwork design, materials, and installation, as well as the need to hide ducting behind drywall or suspended ceilings.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFast Commissioning:\u003c\/b\u003e Installation takes minimal time and avoids long operational downtime, making it ideal for active commercial or residential spaces.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eIdeal for Finished Interiors (Retrofit):\u003c\/b\u003e With a compact depth of just 22 cm (222 mm), the unit easily integrates into fully renovated rooms or buildings undergoing modernization.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eFlexible Placement:\u003c\/b\u003e The sturdy steel casing of the Steel model is designed for exposed mounting on either walls or ceilings, seamlessly blending into modern interiors.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/7056\/5692\/files\/Helty_Flow_Commercial_MVHR_System.pdf?v=1786453967\" title=\"Helty Flow Commercial MVHR System – Decentralized Heat Recovery Ventilation for Schools \u0026amp; Offices\"\u003e\u003cstrong\u003eCLICK FOR MORE DETAIL – CATALOGUE\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/7056\/5692\/files\/EN_-_Helty-Flow400-product-sheet.pdf?v=1786454317\" title=\"Helty Flow 400 Steel Commercial MVHR System – Decentralized Heat Recovery Ventilation for Schools \u0026amp; Offices\"\u003e\u003cstrong\u003eCLICK FOR MORE DETAIL – TECHNICAL DATA SHEET\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eDetailed Overview of Capabilities and Technological Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eHigh Performance and Flexible Airflow Control:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eWide airflow adjustment range: from \u003cb\u003e80 to 400 m³\/h\u003c\/b\u003e.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eMultiple operating modes: ultra-quiet Night Mode, 4 standard speeds for everyday comfort, and a Hyperventilation (Boost) mode for rapid airing out.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eAdvanced Energy Efficiency and Recovery:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eEnthalpic Counterflow Heat Exchanger:\u003c\/b\u003e Recovers both sensible heat (up to \u003cb\u003e92% thermal efficiency\u003c\/b\u003e) and moisture, preventing indoor air from drying out in winter and reducing the cooling load on air conditioning during summer.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eEnergy Efficiency Class: \u003cb\u003eA+\u003c\/b\u003e (Cold climate) \/ \u003cb\u003eA\u003c\/b\u003e (Temperate climate) \/ \u003cb\u003eE\u003c\/b\u003e (Warm climate).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSpecific Energy Consumption (SEC): \u003cb\u003e-40 kWh\/(m²·year)\u003c\/b\u003e for temperate climates.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eQuiet Operation and Acoustic Comfort:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eEngineered aerodynamics and sound insulation keep noise down to \u003cb\u003e22 dB(A)\u003c\/b\u003e at minimum speed (virtually imperceptible to the human ear).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eAt nominal design airflow, noise level remains low at \u003cb\u003e35 dB(A)\u003c\/b\u003e, making it suitable for classrooms, offices, and bedrooms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eMulti-Stage Air Filtration and Monitoring:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSupply Air:\u003c\/b\u003e Dual-stage filtration. Primary filtration via a Coarse 80% (G3) filter traps larger dust and debris, followed by a high-efficiency ePM1 80% (F9) filter that captures up to 80% of fine particulate matter (including pollen, allergens, soot, and PM2.5\/PM1 micro-dust).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eExtract Air:\u003c\/b\u003e Coarse 80% (G3) filter protects internal components and the heat exchanger from indoor dust.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cb\u003eSmart Monitoring:\u003c\/b\u003e A built-in differential pressure sensor continuously monitors filter clogging and alerts you when maintenance or replacement is required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFull Technical Specifications and Features (STD Version)\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eParameter \/ Feature\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eValue \/ Details\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eDimensions (W x H x D)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1434 x 222 x 602 mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eNet Weight\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e44 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eWall Penetrations\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2x Ø200 mm holes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePower Consumption per Speed\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1 energy \/ 2 \/ 3 \/ 4 \/ Boost: 16 \/ 21 \/ 30 \/ 49 \/ 73 \/ 120 W\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eSpecific Fan Power (SPI)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.2 \/ 0.16 \/ 0.17 \/ 0.2 \/ 0.23 \/ 0.3 W\/(m³\/h)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003ePower Supply Parameters\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMains: 230 V AC \/ Internal operating voltage: 24 V DC (max 0.6 A)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eFree-Cooling \/ Free-Heating\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAutomatic electronic bypass included\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eSpecial Modes\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eNight Mode, Hyperventilation (Boost)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eControl Interface\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRemovable wired STD control panel (included), IR remote compatible\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eBMS \/ Smart Home Integration\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eIntegrated RS485 serial port (Modbus RTU protocol)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cb\u003eProduct Code (STD)\u003c\/b\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e1VMC04030\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/7056\/5692\/files\/Helty_Flow_Commercial_MVHR_System.pdf?v=1786453967\" title=\"Helty Flow Commercial MVHR System – Decentralized Heat Recovery Ventilation for Schools \u0026amp; Offices\"\u003e\u003cstrong\u003eCLICK FOR MORE DETAIL – CATALOGUE\u003c\/strong\u003e\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/7056\/5692\/files\/EN_-_Helty-Flow400-product-sheet.pdf?v=1786454317\" title=\"Helty Flow 400 Steel Commercial MVHR System – Decentralized Heat Recovery Ventilation for Schools \u0026amp; Offices\"\u003e\u003cstrong\u003eCLICK FOR MORE DETAIL – TECHNICAL DATA SHEET\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eHeat recovery ventilation cost\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003eYou can install HELTY yourself or use our installation service.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0609\/7056\/5692\/files\/Helty_logo.png?v=1786457635\" alt=\"\"\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"HELTY","offers":[{"title":"Default Title","offer_id":45980032172092,"sku":"44090","price":3299.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/7056\/5692\/files\/Helty_Flow_400_Steel_Commercial_MVHR_System_Decentralized_Heat_Recovery_Ventilation_for_Schools_Offices.jpg?v=1786453718","url":"https:\/\/redlakecompany.co.uk\/products\/helty-flow-400-steel-commercial-mvhr-system-decentralised-heat-recovery-ventilation-for-schools-offices","provider":"Redlake Company","version":"1.0","type":"link"}