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Stadium Ventilation BM810 - 1,000mm Extension Tube for Stadium Ventilation BM418 'Black Hole® Vario' Core Drill Ventilator - rigid long extension tube, used for installation situations where the total wall thickness exceeds 350mm or behind unit situations.
Core Ventilator Extension Tube BM810 features:
Length: 1,000m.
Diameter: Ø 5" (127mm).
Material: Black Plastic.
For use with 'Black Hole® Vario' Core Drill Ventilator BM418.
Complies with BS 5440 Part 2, 2000.
Benefits of the "Black Hole" range:
Stops wind blasting in - The air flow within the duct is slowed down by the change of direction and by the vortices formed, reducing draughts to a minimum.
Stops light showing through - The occupier cannot see through the ventilator and is less likely to be worried that insects and vermin may enter the house through it.
Stops light shining out - Night flying insects like moths, craneflies, and mosquitoes are not attracted in.
Absorbs outside noise - Reduces the penetration of traffic noise. The internal construction works as a sound baffle.
Allows air to be pulled through by the appliance when it is operating.
Safety - With draught and light annoyance problems eliminated, the occupier will not be tempted to block off the vent.
Core Drill Ventilators are designed for use when ventilating a gas appliance, but can also be used for general through wall ventilation. They can easily be fitted in both refurbishment and new build situations with the use of a Ø 5" (127mm) diameter core drill.
For more information, please visit this products specification webpage
