9" x 6" Cavity Wall Extension Sleeve for Air Draught Ventilator Vent

Extension Sleeve for Cavity Vent

9 x 6 inch    

Extension sleeve for cavity wall ventilators

Each adaptor adds on another 200mm to sleeve length

Adaptors can be added on to each other for extra reach

Extendable cavity Sleeves Available in our shop

Meets requirements for British Gas. 

Use

To provide ventilation for heat producing appliances
To provide background room ventilation
Individual ventilation sets can supply up to maximum appliance rated input of 29kW (99,000 Btu/h)
For new build, refurbishment and remedial work

Features & benefits

Aesthetically pleasing and a simple to install modular system
Excellent airflow properties
Independently tested by BRE
Offers reduction of draughts and light compared to basic through wall ventilation
Cowl or air brick version available
Internal baffle with aerodynamic design improves airflow
Internal finish with open louvre grille (options with Hit & Miss available to special request, but not suitable for heat producing appliances.

Quality

Equivalent area tested to BS EN13141-1:2004
Compliant with BS 5440-2:2000, BS 5871-3:2005 & BS 493:1995
Complies with Building Regulation 2000 Approved Documents F (2004 edition) & J (2002 edition)
Complies with ‘The Scottish Building Standards’ Technical handbooks
Manufactured to BS EN ISO 9001:2008
Meets the requirements of British Gas
Satisfies NHBC Standards 2008

Material & colour choice

Manufactured by injection moulding in HIPS/Polypropylene
External brick/cowls in buff, brown, terracotta & white
Internal grilles are white as standard