HDH355 : Helios Fans HDH 355
Helios / (HDH355)
| Code & Description | Price | |
|---|---|---|
|
HDH355 : Helios Fans HDH 355
Note: £549.81 + VAT for new customers using 'WELCNFAN1' discount code!
|
£646.84 + VAT £776.21 | |
We accept : 
15% discount with code ‘welcnfan1’
Note: Code can only be used once per customer. Discount codes are entered after selecting shipping method.
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The Helios HDH 355 is a horizontal roof ventilation cowl intended to cover convection vents and supply air openings on rooftops. It features the same design as Helios RD series horizontal outlet roof fans, providing a uniform installation appearance. Suitable for natural and mechanical ventilation, the HDH 355 requires consideration of flow losses when used in mechanical ventilation systems, as detailed in the technical diagrams.