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Greenwood GB Vent - Through Frame Slotvent

Overview

• Through frame trickle ventilator
• Designed for use in combustion environments
• Provides permanent ventilation
• Manufactured from PVCu
• Conforms to BS 5440 Part 2: 2000

The GB Vent has been designed to meet the Building Regulations requirements for the permanent supply of combustion air and complies to BS 5440 Part 2: 2000.

Available in a 5000mm2 model, the inner vent is inverted to deflect the supply of air upwards and the external unit is hooded to prevent weather ingress. The GB Vent can be used as a through-frame, glazed-in or over-frame ventilator.

Supplied as a complete package and manufactured from PVCu, the vent is designed for screw fixing and is available in white, brilliant white and brown.

Product Performance

BS 5440 Part 2: 2000 Specification for the installation of ventilation for gas appliances

In internal spaces with gas appliances, the provision of Combustion Air can be provided through ‘Air Vents’.

A non-adjustable ventilator designed to allow thepassage of air at all times. The ventilator must be fitted with apertures that prevent the entry of a 10mm diameter ball, but allow the entry of a 5mm diameter ball. No gauze or screen should be incorporated or fitted.

The ventilator should be sited at a high level or adjacent to the appliance and the free area equalling the sum of the individual areas apertures of the ventilator.

Greenwood’s GB ventilator has been tested and conforms to BS 5440 Part 2: 2000 and requirements laid down in current Building Regulations.

Extract from BS 5440 Part 2: 2000 courtesy of British Standards Institute.

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