Stadium Core Drill Vents Core Drill Vents are designed for use when ventilating a gas appliance, but can also be used for general through wall ventilation. Core Drill Vents can easily be fitted in both refurbishment and new build situations with the use of a 5" (127mm) diameter core drill. Core Drill Vents includes a cowl vent for exterior use, a louvre grille for inside, a 350mm length of pipe. The external cowl minimises uncomfortable draughts, reduces noise and light from outside the property and acts as a barrier against wind driven rain whilst providing a free area of upto 100cm². For situations where the total wall thickness exceeds 350mm, a 1000mm pipe duct can be purchased separately.
Stadium Core Drill ‘Black Hole’ Ventilator 127mm (5") diameter ‘Black Hole’ cavity liner and extension piece. Tube length from 228mm to 585mm with extension tube supplied. Brown outer cowl white inner grille. Fixed Anti-draught baffles. Gross input rating: Max 13kw (44,000Btu/h) Effective free area: 30cm²
