A cooker hood is placed directly above the hobs, and is not normally used in conjunction with stoves having an eye-level grill assembly. The hood should be sited squarely over the cooking area and no less than 600mm above it. Most cooker hoods hook or slip on to brackets fixed to the wall, enabling them to be removed for filter maintenance and cleaning.
If the hood is to be used as an extractor with ducting to the outside, consider relocating the stove if this will make the work easier and shorten the path for the duct. Hoods can be ducted directly to the outside but, if the stove is to remain in the most convenient spot, a length of flexible duct piping is usually required. This can be concealed by a dummy section fitted cupboard, or by purpose-made boxing-in. Flexible pipe duct can be used for an extractor fan which cannot be located on an outside wall, but keep the length short. Fitting a cooker hood above a stove or mounted hob unit presents very few difficulties. If the hood is of the type that simply filters and recirculates the air, little work is required. An extraction hood is much more efficient in clearing cooking fumes. However, additional work is required in providing a duct to an outside wall, making a hole in the wall and concealing the flexible hose that connects the hood to the outside. Taken individually, none of these jobs is particularly complicated but a full day should be allowed for the project.
Making a hole in the wall is a straightforward but major part of the operation. Line the hole to prevent draughts and heat loss. Slope the hole downwards to the outside slightly if this is possible. A purpose-made ducting kit should be fitted according to the manufacturer’s instructions.
If possible, re-plan your kitchen so that ducting can be reduced to a minimum by placing the stove nearer to an outside wall.