127mm BLACK HOLE VENTILATOR C/W FIXED ANTI-DRAUGHT BAFFLES - K-BM725

• Tube length from 228mm to 585mm with extension tube supplied.
• Brown outer cowl white inner grille.
• Fixed anti-draught baffles
• Free area cm2: 30cm2
• Rated Input - Max 13kW (44,000 Btu/h)

We will supply this 5 inch 13kW STADIUM BM725 black hole ventilator with anti draught baffle which is designed to reduce or stop wind blowing through the vent by its unique duct design. The anti-draft vent should be installed as close to the appliance as possible and should be fitted as high up as possible as the cold air being drawn in mixes with the warm air at the top of the room. The black hole air vent is installed with the use of a 127mm (5") core drill and an extension tube is supplied with the black hole vent for walls over 9 inches up to a maximum of 23 inches '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 Free area cm2: 30cm2 Rated Input - Max 13kW (44,000 Btu/h) TO ENSURE THE VENTILATOR PROVIDES THE CORRECT AMOUNT OF AIR WHEN AN APPLIANCE IS OPERATING IT IS IMPORTANT THAT A SPILLAGE TEST IS CARRIED OUT AS REQUIRED BY THE BRITISH STANDARD AND GAS SAFE GOOD PRACTICE.