The Manthorpe 127mm permanently open vent is designed for use when ventilating a room with a gas appliance or stove, but can also be used for general through wall ventilation. The vent can easily be fitted in both refurbishment and new build situations with the use of a 5" (127mm) diameter core drill. The kit includes a cowl vent for exterior use, a louvre grille for inside, a 350mm length of pipe duct and an optional anti-draught baffle. This baffle reduces the airflow and also the feel of a draught through the vent. Without the use of the anti-draught baffle, the free area of the vent is 100cm². With the anti-draught baffle installed, the effective free area of the vent is reduced to 70cm² . The external cowl minimises uncomfortable draughts, reduces noise and light from outside the property and acts as a barrier against wind driven rain while the louvre fits on the internal wall and, similarly helps to reduce draughts, noise and light penetration.
Key features
Ideally suited for ventilating rooms with gas appliances or wood burning stoves
White external and internal grille
100cm² of airflow without draught baffle
70cm² effective airflow with baffle
Fits through a 5" diameter core drill hole
Kit includes a hooded, weather proof external cowl cover
Discreet internal louvered grille with hidden fixing holes
